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Yanmar YM276, Service Manual

The Yanmar YM276 Service Manual is a comprehensive user manual designed to assist owners in operating and maintaining their YM276 product. This manual, available for free download from manualshive.com, provides detailed instructions and troubleshooting tips, ensuring optimal performance and longevity of your equipment.

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Summary of Contents for YM276

Page 1: ... Rev Jun 19 YANMAR llESEL ENGINE CI LTb ...

Page 2: ...TRAIN REPAIR STEERING BRAKE REPAIR HYDRAULIC REPAIR MISCELLANEOUS REPAIR 1 80 ENGINE OPERATION A N D TESTS 1220 ELECTRICAL OPERATION AND TESTS POWER TRAIN OPERATION A N D TESTS FUEL AIR OPERATION AND TESTS STEERING BRAKES OPERATION AND TESTS 1260 230 A VANMARDIESEL ENGINE CaLTP HYDRAULIC OPERATION AND TESTS 270 ...

Page 3: ...you see this symbol be alert to the msibility of personal injury and carefully read the message that follows This stop symbol indicates important proper operation messages in this manual When you see this symbol carefully read the message that follows Right hand and the Left hand sides of this tractor are determined by fauling in the direction of tractor forward travel This tractor is of metric de...

Page 4: ...arts to stop COMPLETELY before attemptingservicing 11 Keep hands feet and clothing a safe distanceaway from moving belts pulleys and any other moving part that may cause injury Make sure that all safety shields are installed 12 B e extra careful when performing any checks inspections adjustments or tests that require operatingthe engine operat ing the hydraulic controls or with the machine in moti...

Page 5: ...block or head Never operate engine without coolant for even a few minutes 18 Always display the caution tag or board until tractor has completely serviced 19 Keep working floor clean and dry to avoid slippage 20 Let other worker know what you are doing when servicing in cooperation with the tractor 21 Safety shields are usually removed for access to assemblies being serviced All safety shields mus...

Page 6: ...a GENERAL 10 0 00 SPECIFICATIONS AND SPECIAL TOOLS 05 PREDELIVERY SERVICE 10 PERIODIC SERVICE 15 FUEL AND LUBRICATION 20 SEPARATION ...

Page 7: ... 9 in 1432 mm 55 3 in 1865 mm 73 4 in 1469 mm 57 8 in 1625 mrn 64 0 in 1015 mm 39 9 in 1114mm 43 9 in 2600 mm 1102 4 in 2400 rnm 94 5 in 329 mm 12 9 in at drawbar 3sylinder in linediesel 3T84HA 900 rpm 1800to 2600 rpm 84 x 85 mm 3 31 x 3 35 in 1 413 P 86 2 Cu in 20 1 1 3 2 0 20 mm 0 008 in 0 20 mm 0 008 in 21 BTOC Force feed pressurized with full flow filter 27HP 20 1 KW at 2600 rpm Swirl precombu...

Page 8: ... 318 in Usestransmission clutch Open center constant flow 650 kg 1433 Ibs 630 kg 1389lbs 155kglcml 2204 psi Gear pump driven by engine 31 2 Plmin 8 2 U S GPM Mechanicaldry internal expandingshoe 12 volt negative ground One 12 volt 70 Ah 15amp or 35 amp 5 00 15 F1 5 50 16 F11 27 x 8 50 15 11 2 24 R1 12 4 24 R1 11 2 24 R3 355180D20 Turf 1094 mm 43 1 in Pressurizedwith centrifugal pump Thermostat 32 ...

Page 9: ...Specifications and Special Tools 10003 TRAVEL SPEEDS With 11 2 24 AGI tire With 12 4 24 AG tire With 355180D20 Turf tire SME276012J5 705 YMZ76and 276D Kinornolo Prinred in h a n ...

Page 10: ...m 60 Nm 6 kgm 43 ff ltx TORQUE CHART Refer to the following charts for tightening torque specifi cations Note however that torque specifications for the more important nuts and bolts will be provided in the sections on their assembly 1867041 Grade is embossedon screw head A Bolt effective dlameter M6 M8 M I 0 M I 2 M14 M18 M I 8 M2O SME2760121 8705 YMZ7Ksnd 276D K nomoro Prinredin Japan 8 With acr...

Page 11: ...ube Every 600hours Check transmission hydraulic oil level Every 50hours Change transmission hydraulic oil Every 300h w r s Clean transmission hydraulic oil filter Mesh Type Every 300hours Replace transmission hydraulic oil filter Cartridge Type Every 300hours Clean and repack front wheel bearings Every 600hours Check front axle gear oil level Front Drive Model Every 50hours Change front axle gear ...

Page 12: ... housing to Engine 98 Nm 10 kgm 72 ft lbs Front axle bracket to Engine 98 Nm 10 kgm 72 ft lbs Hydraulic lines to Pump 8 Nm 0 8 kgm 5 8 ft lbs Hood mounting bracket cap screws 60 Nm 6 kgm 43 ft lbs Center pin bracketcap screws 150 Nm 15 kgm 108 ft lbs Axle housing to Differentialhousing 7T 60 Nm 6 kgm 43 ft lbs 10 9T 70 Nm 7 kgm 52 ft lbs Hydrauliccylinder case ro Differentialhousing 60 Nm 6 kgm 43...

Page 13: ...rmed When delivering this machine give the customer his copy of the Warranty and Delivery Report andthe operation manual Explain their purpose to him Atter completing the Warranty and Delivery Report file it It will certify that the tractor has received the proper predelivery service Because of the shipping factors involved plus extra finishing touches that are necessary to promote customer satisf...

Page 14: ... ling battery If you spill acid on yourself flush your skin with water and apply baking soda or lime to neutralize the acid Get medical attention immediately 1 Take off sealing tape on vent hole and remove vent plugs before filling with electrolyte 2 Fill with electrolyte up to the bottom of the vent well or up to the UPPER LEVEL indicated on the battery container 3 For filling use battery electro...

Page 15: ...ty show no further rise for 3 successive reading taken at 1 hour intewals The charging time is very according to the storage period of battery as follows Storage Period Month Battery that has been stored for a long time may have partly lost iD dry charged pedormance This however does not mean any deterioration i n battery characteristics Just give a full initial charge at the charge rate for speci...

Page 16: ...ectrolyte to the specified value v When charging battery on a tractor disconnect positive battery cable to starter to avoid damage to the diodes of alternator Never apply FAST CHARGE so as not to lose performance of banery SME2760 1 3w YM276 and 2760 Kinomdro Prlnfed in Japan ...

Page 17: ...ork Light C Oim HeadlightAdjustment Park tractor on level ground 8 rn 25 ft from a wall Check headlight adjustment Direct headlightbeamsslightly down ward and to the right See that no lights will blind the operators of other vehicles See page 40 20 1 for adjustment A Haight of Lamp B Untatina of Tractor C Lowar Lipht Zone D Upper L i h t Zom E 1JO mm I5 in F PointsDirectly in Front of Lightr Flash...

Page 18: ...e sub tank A should have coolant up to the full mark A Sub Tank 6 Full rnsrlr If coolant level i s low fill to proper level and determine where coolant was lost ANTI FREEZE PROTECTION Use a dependable temperaturecorrecting hydrometer to check anti freeze protection of coolant If more is needed use perma nent type ethylene glycol anti freeze which contains a rust in hibitor but does not contain a s...

Page 19: ...ut of reach of children ENGINE OIL 1 Remove engine oil dipstick located on the right hand side of cylinder block 2 Check oil level The oil level should be between upper and lower lines A Upper Indicator Line B Lowar Indicator Line 3 If necessary add enough oil with the following specifications 4 Depending upon the operating conditions use the correct grade of oil specified as shown Single Vircorit...

Page 20: ...perature for the fill period use oil of viscosity as shown in the illustration 6 The engine oil capacities of modelsare as follows 32 FIO C SAEl OW 20 SAEl0 SAE1OW M 14DF fODC SAE5W 20 t SAESW 33106 1 SAEW SME276OIflB3W YM276 and 2760 Kinomore Printed in Jaw MODEL ENGINE OIL I P IUSsalI YM276 1 4 3 1 141 ...

Page 21: ...SSION HYDRAULIC OIL 1 Remove oil filler cap with dipstick and wipe it clean 2 Insert dipstick to rest on threads but do not screw it in 3 Oil level should be within crosr hatchings SMEZ76O llB 04 YM276and 276D kin om of Printed i J pa ...

Page 22: ...r Hydraulic Fluid 1 SUN OIL ALTRAM 303 Fluid Oil I I INTERNATIONAL H T 6 6 Fluid JOHN DEERE 1303 J14B CASE ALLIS CHALMERS FORD I HARVESTER IINTERNATIONAL HARVESTER CASE TCH Oil JIC143 JIC144 or JIC145 ALLIS CHALMERS Gear Hydraulic and Wet Brake Oil ACM 7201 M2C41 A M2C53 A or M2C86A 5 The transmissionhydraulic oil capacities of models are a s follows SME2760111 8304 YMZ76 and 2760 Kinornoto PNnrrd...

Page 23: ...n 2 Insert dipstick to rest on threads but do not screw it in 3 Remove the dipstick again and check oil level Oil level should be within cross hatching If necessarf add SAE 90 gear oil to the front axle housing 4 The front axle oil capaciw is as follows MODEL FRONT AXLE O I L Q US gal 1 ...

Page 24: ...5OC 80 F Below 5 4O0FI Above 5 140 F As further insurance of satisfactory operation use fuel having less than 1 0 percentsulfur preferably less than 0 5 percent 1 D 2 13 1 D 2 D For maximum filter life sediment and water should not exceed 0 10 percent To maintain proper fuel delivery during cold weather operation use Grade No 1 0 diesel fuel with a pour point at least 5 6 c lo F below lowest ambie...

Page 25: ...nister and end cover is in good conditon If gasket is damaged or missing replace gasket 3 Be sure seal washer on the pre cleaner cover i s in good con dition If the washer is damaged or missing install new seal washer 4 Be sure rubber gasket on the precleaner bowl is in good condi tion Replaceas necersary SMEZ76OlllB M YM276and 2760 inomofo Printed inJapn ...

Page 26: ... lkolcrn l loril 27 x 8 50 1 5 1 2 1 69 0 71 10 1 69 0 71 I101 1 Turf CAUTION When inflating tire do so from a distance Use A long hose with selfattaching air chuck and safe cage Do not inflate tire beyond maximum recommended pressurer Rear Tirer Tire Sire 112 24 12 4 24 11 2 10 24 35518OD20 ply Rattng 4 4 4 4 Inflation Pressure Min kPa ikglcm l psi1 78 10 81 H 11 78 10 8 I11 78 10 81 I111 78 10 8...

Page 27: ...cking toe in I 1 I 1 Steer front wheels straight ahead 2 Measure distance between tires at hub level both in front and in back Proper toe in is 4 to 8 mm 0 16 to 0 32 in less in frontthan in rear A B 4 t o 8 m m 0 16 to 0 9 in C Toe in Gauge Adjusting Toe in 1 Loosen lock nut s on the end of turnbuckle 2 Rotate turnbuckle to 6 mm 0 25 in 3 Tighten lock nuts to lengthen or shorten it Adjust toe in ...

Page 28: ...f 4 wheel drive model is not adjustable vReversing front wheels t o extend wheel tread is not re wmrnended 1 With jack under front weight support jack up tractor just enough to take weight off tires 2 Remove bolts from tie rod clamps 3 Remove bolts from front axle 4 Slide axle knee t o desired Dosition A Axle Knee 8 Axle SME276011 8304 YM276 and 276D inomofo Printed in Japan ...

Page 29: ...me amount ar axle 7 Adjust other side in same manner Both sides should normally be adjusted to same spacing 8 Check toe in each time tread is adjusted See instructions on page 10 05 15 1 9 The following chart shows front treads at every axle positions TRACTOR TREAD A T AXLE POSITIONS in MODEL YM276 SME2JSOllJa Od YMZ76and 276D Kinomom Printed in Japan ...

Page 30: ...hen reverring the wheels they must be changed from one v s deto the other so that arrow Circuled on side of tire points in the direction of forward rotation of tire A Rotational Direction Adjust other side i n same manner Both sides must be v adjusted to same position SME276012J 8705 YM276and276D K narnoro Prroredin Japan ...

Page 31: ...or wheel to rim retaining screws 0 3 Reverse wheels or reposition the wheels and rims to get the desired tread 4 Tighten all retaining bolts and screws as follows TRACTOR MODEL rn REAR TREAD AT RlMlOlSK POSITIONS in 1 s t I 2nd I 3rd I 4th I 5th 1 6 t h Screws SME276017 B M YM276 and 2760 Xinomoro Printedin Japan Tarauer Hub Bolts 294Nm 130kgml 1221ft Ikl Wheel to Rim Retaining Screw 196Nm 120kgmI...

Page 32: ...re tracks oiten With too much ballast tread marks will be clear and distinct showing no slippage With too little ballast tread marks will be wiped out by slippage A Too muchballast t l Corrsct ballart c TOO anbb a h t Maximum added ballast varies depending upon tire size and tractor weight A C 331w V T o t a l rear y l e weight including tractor weight liquid ballast cast Iron we ghts and mounted ...

Page 33: ...eel disk then install additional weight 18 25 kg Each tractor has a limit of rear ballast See operation manual for the limitation A Baa Weight 2Okg 45 lkl B Additional weight 25 kg 55 Ik 12 4 24 FRONT BALLAST 140 kg 1308 lbrl Front ballast may be required for stability and steering control when weight on the front wheels is transferred to the rear wheels by implement action through the hitch v Tot...

Page 34: ...ve switch down to disengage front P T O If it is switched on starter can not be run A Front PTO switch 5 Place hydraulic control lever in lower position 6 Push throttle lever to the maximum speed position As soon as engine starts pull throttle about halfway back Do not run a cold engine at full throttle 7 Turn key clockwise to first position ON Check indicator lamps Oil pressure indicator lamp sho...

Page 35: ...ine at approximately 1500 rpm for five minutes DOnot accelerate or apply a load until engine warms up COLD WEATHER STARTING ENGINE DOnot usestartingfluid ether in this engine Thermostart Device With a cold engine and a t ambient temperatures below O C 3 2 operate the thermostart device a s follows 1 Pull throttle lever fully rearward stopposition 2 Crank engine 5 to 10 seconds until oil pressure i...

Page 36: ...ttery can be connected in parallel with the tractor battery Use heavy duty jumper cables 1 Attach one cable t o positive terminal of booster banery and t o starter terminal where positive battery cable is attached 2 Attach one end of second cable to negative terminal of booster battery 3 Attach other end of second cable to a good ground on tractor frame Electric Coolant Heater Optional With a eold...

Page 37: ...Nu position 3 Depress both brake pedals 4 After tractor i s stopped place range shift lever and PTO lever in neutral positionwith depressingclutch pedal 5 If an implement is attached on three point hich move hydraulic control lever forward LOWER 6 Pull parking brake lever back and firmly depress brake pedals Stopp nga hot engine suddenly muld cause damage to certain engine parts by over heating 7 ...

Page 38: ...ve engaged check steering force If it hard check inflation pressuresof front and rear tires A PTOShitt Low F Power Shift Laver B Clutch Pedal G R a w Shift Lever C BrakePedals H 0 i i s n t i I Loe Pedal D Thronla Lasr I FmmWheel Drive Shift Laver E Foot Throttle BRAKES 8e sure that brakes are properly adjusted and the both sides brake equally POWER TAKE OFF 1 Check PTO guard A and master shield B...

Page 39: ...ch Al and drawbar B Check for missing parts damage or anything which might lead to problem A 3Point Hitch B Drawbar 3 Check the lift arm free play at the top of the stroke of the lift arms The play should be 7 to 10 mm 0 3 to 0 4 in Adjust lower feedback rod B to obtain the correct play A L i i A m Frn Play B L r Feedback Rod SMF2760121 8705 r 2 7 6 and 2760 Kinomoro Printedin Japan ...

Page 40: ... sure coolant contains sufficient anti freeze 3 Check electrolyte level in battery If electrolyte does not cover plates add distilled water Make sure battery is fully charged 4 Look clutch pedal in a depressed position to prevent it from sticking 5 Store tractor in a dry protected place If necessary to store tractor outside cover it with a protective material Protect tires from sunlight heat and p...

Page 41: ... 6 Coat exposed metal surfaces with grease or corrosion preven tative 7 Store tractor in a dry protective place If necessary to store tractor outside cover it with a protective material Protect tires from heat sunlight and petroleum products 8 Seal end of air intake pipe crankcase breather pipe hydraulic system breather pipe muffler and engine oil filler with Plastic bags and tape 9 Start engine o...

Page 42: ...explaining to him how to operate and service it The warranty on a new tractor shall be explained to the customer It appears on YANMER DIESEL TRACTOR LIMITED WARRANTY RightILowl which customer should have received with a new tractor The following procedure is recommended before the serviceman and owner complete the delivery acknowledgements portion of the WARRANTY AND DELIVERY REPORT Using the trac...

Page 43: ... the date in each column of list Effective lubrication is the most important step toward low upkeep cost long life and satisfactory service Without oil and grease you can ruin important working parts of your tractor in a very short time The intervals at which t h e various working parts should be checked lubricated serviced or adjusted are based on hours of operation as shown on the hourmeter HOUR...

Page 44: ...ant Reflectors horn and headlights Precleaner Radiator Filter screen in the fuel tank Fuel strainer Indicator lamDs Brakes Clutch Check fuel level to supply for one day operation Check oil level with dipstick fully inserted Check oil level Check coolant level at sub tank Check tightness of front axle bracket bolts and wheel bolts Check air pressure inspect for damage Lubricate grease fittings Make...

Page 45: ...lled water Steering system Capacity and procedure Fan belt Descriptionof lubricant Coolant temperature indicator lamp EVERY 200 HOURS Check tightness of steering system Check fan belt tension Replace belt if worn or damaged Check the bulb by removing from the lam0 holder after five cleanings or annually which ever occurs first See page 10 057 for recommended engine oil I200 1 I Engine oil filter R...

Page 46: ...ant SAE 9 0 gear oil EVERY 600 HOURS 1 6004 1 Engine valve clearance I Adjust valve clearance 1 I 600 1 600 2 600 3 600 5 1 Engine valve clearance I Adjust valve clearance 1 I 16 1 iniection nozzle Check infection nozzle I Air intake system Front wheel hubs 12WD ONLY Radiator 160 7 I Steering wheel Check steering wheel free travel I Check air intake system for leaks Correct a s necessaw Renew fron...

Page 47: ...nand Hy draulic oil Radiator Engine crankcase Hydraulic rubber hoses if equipped Dmauiptimof w w i w Replace element annualy or after five cleanings whichever occurs first Replace oil and filter element annually Flush radiator annually Flushcrankcase interior Check for cracks Capacity and procedure Replaceas necessary ...

Page 48: ... one day supply of fuel is available 1 Confirm each component using lubricating oil is filled t o the level indicated on the dipsticks Engine Transmission 2 Check engine oil leakage Confirm radiator is filled by the specified amount o f coolant 1 Check tightness of bolts and nuts for mounting between engine and front axle support and clutch 11 12 Reference Use clean soft water Battery Brakes Clutc...

Page 49: ...engine speed 1 Confirm that color of exhaust gas is not black 2 Check any usual noises Confirm that all lamps stop glowing when engine runs a t more than 1000 rpm 1 Check clutch pedal free travel 2 Confirm that clutch is to be disengaged completely 1 Check steering wheel for excessive play 2 Confirm that steeringwheel is not too heavy to turn and does not vibrate 1 Confirm that both left and right...

Page 50: ...1 i Air cleaner element cleaning or changing I I i i I i I Engine oil filler changing Radiator flushing vThis chart excludes daily or every to hours check and sewice Use DAILY CHECK LIST on precedingpage evew day SMEZ76OIlJ 83M VMZ76and 2760 Kinomoro Prmfed in Jawn ...

Page 51: ...Periodic Service 10 10 9 Remarks ...

Page 52: ...serious problems Later on This will promote strong dealercustomer relations and present the dealer an opportunity to answer questions that may have arisen during the fint few days of operation The following inspection program is recommendedwithin the fint 100hwrs of tractor operation COOLING SYSTEM 1 Check radiator sub tank Overflow Tank Coolant should be between the marks on the tank If not fill ...

Page 53: ...siw C Ret ining Nut When reinstalling sediment bowl be sure the O ring 0 is in the groove in the retaining nut A After reinstalling sediment bowl bleed air from the sediment bowl To bleed loose bleed plugs C on the filter housing until air bubble is gone and fuel flows out bleed hole A Rataininp Nut B O Ring C El d Plug 2 Check entire air intake system for leaks 3 Inspectair filter and clean if ne...

Page 54: ...ip stick and see if the oil level is in the safe range If not add enough oil to bring it up to the top of cross hatching 3 With the tractor front axle on level ground loosen the front axle oil dipstick and check the oil level is in the safe range If not add enough gear oil to bring it up to the top of cross hatching 4WD Model Only 4 Lubricate 3 point hitch A Uppr link B Uppr Link Hinge C Lsueliw T...

Page 55: ... water 3 Check tension of fan belt Belt should deflect 10 to 15 mm 318 to 518 in when a 89N 20 I force is applied 4 Check operation of all lights If there is a problem refer to Section 20 of Chapter 240 in the service manual 5 Follow engine starting instructions beginning on 10 05 22 Check operation of starter and warning lights OPERATION Perform all checks as instructed under OPERATING CHECKS beg...

Page 56: ...e No l D diesel fuel with a pour point at least 5 3 1 0 below lowest ambient air temperature The cetane number should be 40 minumum Operation under low ambient temperature as well as rarefied air may required use of a fuel with a higher cetane number DIESEL FUELS CHECKING FUEL LEVEL Tvw of EngineService Wide variation inload and conrider able idling Heaw loadandhigh speed minimum idling Check fuel...

Page 57: ...sed Check oil level more f equently If ambient temperature is below 1 2 10 Fl use a coolant heater Engineblock heater Depending upon the expected ambient temperature for the fill period use oil of viscosity as shown in the chart below Listof Engine Lubricating Oils Supplier Delvac 1200Series Standard Diesel Oil SHELL Brand name Shell Rotella Oil Shell Talona Oil Shell Rirnula Oil BP MOTUL Below 10...

Page 58: ... type grease for all grease fittings Wheel bearinggrease is recommended for front wheel bearings STORING LUBRICANTS Your tractor can operate at top efficiency only if clean lubricants h are used Use clean containers to handle all lubricants Store them in an area protected from dust moisture and other contamination SME2760111 04 YM276andZ76D Kinornoto Prhndin Japan CALTEX SUN OIL JOHN DEERE CASE AL...

Page 59: ...nd filter element after the 50 hours of operation Change the Transmission Hydraulic oil and filter element Cartridge type and clean suction screen after the first 50 hours operation LUBRICANT MAINTENANCE CHART EngineOil TYPE OF LUBRICANT 4 3 P 4 5 U S gallons INTERVAL OF SERVICE See page 10 15 2 10 Hrs Check level 100 Hrs Change oil 200 Hrs Change filter 300 Hrs Wash crankcase interior 300Hrs Clea...

Page 60: ...Crankcase Every 100 hours of engine operation replace oil in the engine crankcase Drain crankcase at the end of day s operation at which time the oil is hot and all foreign material is in suspection During cold weather operation with temperatures below OOC 3z F change oil a t any seasonal change in temperature when oil of a new viscosity is required 1 Remove engine oil drain plug and drain oil 2 I...

Page 61: ...plying a thin film of oil to the sealing ring 4 Screw filter element down by hand until sealing ring just touches mounting pad Then turn down an additional 314 to 1 114 turns Do not overtighten 5 Start engine and check for leaks The filter element has a special bypass valve Replace only with a A genuine YANMAR filter element CLEANING CRANKCASE VENT TUBE Remove crankcase vent tube and clean in a sa...

Page 62: ...ngine operation or annually whichever occursfirst replaceoil in the transmission case Drain transmission case at the end of a day s operation at which time the oil is hot and all foreign material is in suspention 1 Remove drain plug A1 from transmission case plug B from front drive case and drain oil Lower hydraulic lift to remove trapped oil 2 Clean or replace transmission oil filter 3 After inst...

Page 63: ...hes mounting pad Then turn down an additional 314 to 1 114 turns Do not overtighten 5 Start engine and check for leaks Transmission Oil Filter Suction Screen Transmission oil filter cover is located at the left side o f transmis sion care Clean filter element every 300 hours or annually at the same time which the transmission oil is changed 1 Remove two cap screw A and pry off filter cover 61 A C ...

Page 64: ... S quarts Changing Oil 1 Remove a drain plug A on the differential housing and drain plugs IB on both right and left final gear case two A Dnm Plug B Drain Plugs on Find Gear C s 2 Install drain plugs 3 Refill with 6 0P 6 3U S quarts of SAE 90 gear oil 4 After having carried out the oil change check oil level by the dipstick vWhen checking oil level after refilling wait at least one hwr t o obtain...

Page 65: ...nspect parts carefully for damage Replace any which are warn 5 Pack bearings with wheel bearing grease Coat seal with multi purpose grease 6 Reassemble parts Tighten adjusting nut until a slight drag is felt when wheel is turned Back nut off just enough to insert cotter pin in first hole 7 Reinstall hub cap SERVICE INTERVAL Every 300 hours A Hub Csb F Bsaing B Packing G Hub C Cmter Pin H Baaring 0...

Page 66: ... Fining 8 G r w Pump C Front Axle N O Tie Rod Ends Every 50Hrs I A G Fitting B G Pump C T i e R d King Pins Every 50Hrs 1 Remove plugs from front axle king Pins 2 Apply several shots of grease to fitting A until comes from opening A G Fitting B DninOwninp clean grease ...

Page 67: ... R e n B Orsaps Pump Clutch Pedal Shafi Every A Clutch Pedal B G r e w Fitting Brake Pedal Shaft Every SOHrs A Brake Pedals B GnasFittinss Point Hich Every 10Hrs A Upper Link B Upper Link Hinge C Leveliw Turnbuskls D Lifl Links E Lmar Links SME276017J4304 YM276znd 276D Kinornoto Printed in Jemn ...

Page 68: ...ect ground cable from frame or battery 4 Disconnect headlight wire 5 Remove hood mount bracket cap screws 6 Remove hood 7 Disconnect cable from starter 8 Drain cooling system 9 Disconnect drain hose from engine block 10 Disconnect radiator lower hose from engine block 11 Disconnect radiator upper hose from radiator 12 Remove cap screw ...

Page 69: ... propeller shaft Becareful when removingthe shaft The steel balls may fall and be lost unlessthe shah i s handled with care A Cotter Pin B Spring C PropellerShaft 15 Disconnect drag rod from pitman arm 16 Support tractor under clutch housing 17 Insert blocks both sides between front axle bracket and axle housing 18 Remove front axle bracket bolts 19 Roll front end away from tractor A Front Axle Br...

Page 70: ...ngine bolts to 98 Nm 10 kgm 72 ft lbs 4 Fill both cups A and 18 with grease and put in six steel balls Dl in each cup A Fmnt Cup B Rear Cup C PropallerShaft D StalBall l2vsadl 5 Carefully hold the propeller shaft and front cup with steel balls Install the shaft between front differential drive shaft and front drive shaft 6 Push plain washer A to compress spring 161 and install cotter pin C Install...

Page 71: ... housing 1 Remove muffler and air cleaner 2 Disconnect ground cable from battery 3 Remove hood Disconnect wires from Disconnectdrag rod from pitman arm 6 Disconnectline from thermostart cup 7 Disconnect decompression cable 8 Disconnecthourmeter cable from the drive unit Kinomoro Printed in Jam ...

Page 72: ... lever 12 Disconnect hydraulic lines A E and filter housing 6 retaining bolt and nut D A Hydraulic Lina Suction B Filter Housing C Hydnulis Oil Filter D RetsiningBolt and Nut E Hydnulis Lina Pneurel 13 Insert blocks both sides between front axle bracket and axle housing 14 Support tractor under clutch housing and oil pan 15 Removeseven cap screws from clutch housing 16 Slowly roll rear portion of ...

Page 73: ...e Engage PTO shift lever and turn shaft align splines pushingtractor together counter clockwisely 3 Tighten cap screws for mounting hydraulic lines to pump A1 and hydraulic oil filter housing B to 10 Nm 1 kgml 7 2 ft lbs Do not install incorrect length of screws The length of inlet line screws longer than outlet s Be sure length and specified torque for line cap screws to avoid brakageof thread in...

Page 74: ...rmostan cup 7 Disconnect decompression cable 8 Disconnect hourmeter cable from the drive unit 9 Drain cooling system and disconnect drain tube from engine block 10 Disconnect wires from A Hedliphb B Almrnator C Oil Preuvn Ssndsr D Coolam Tsrnpentun Ssndmr E Thennomn Heater Plug F Starter 11 Disconnect radiator upper and lower hoses from radiator 12 Remove cap screw SMFZ760121 8705 YM276and 2160 r ...

Page 75: ...ure line from filter housingand remove filter assembly from engine mounting flange 17 Disconnect hydraulic high pressure line from hydraulic pump k 18 Attach lift eyes to engine for chain hoist 19 Insert blocks both sides between front axle bracket and axle housing 20 Support tractor under clutch housingwith hydraulic jack 21 Loosen front axle bracket bolts before separating between engine and clu...

Page 76: ... it at the edger of the oil pan Be sure that no weight is put on the center of the oil pan lo17 L INSTALLATION Reverse the removal steps on the preceding pages and refer the page 10 20 3 for front end installation to engine page 10 20 6 for engine installation t o clutch housing Apply liquid sealant to the sealing surface between clutch vhwring and mounting flange SME276012JB705 YM276and 2760 Kino...

Page 77: ...attery then wire harness connector A 3 Remove cap screws B and fenders CIfrom steps and rear axle housings A Wire Ha Connector B Cap Screws C Fenders 4 Remove front drive propeller shaft as described on page 10 20 2 4WD only 5 Disconnect wire harness connector 6 Disconnect foot throttle linkage 7 Disconnect hydraulic inlet head from cartridge filter SME2760121 8705 YM276and2760 Kmomoro Pnnred n Ja...

Page 78: ... screws 9 Remove regulator cover 10 Disconnectshuttle shift linkage A 11 Disconnectclutch linkage at front 12 Remove brake return springs 13 Remove cap screws and steps 3 S M E 1 6 D l l l 0 4 YM276 and 2760 Kinornoto Prinred in Japan ...

Page 79: ...n front of power shift pump stays with clutch or not If the shaft comes out completely from clutch section SEPARA TION AT ENGINE TO CLUTCH HOUSING i s required to correct INSTALLATION Reversethe removal steps on the preceding Pages Be sure that clutch disk stays correctly and spline shaft connectors are properly installed A3 mating front and rear part of tractor pay anention to assemble clutch lin...

Page 80: ... 4WD only 5 Ranove brake return springs foot throttle linkage brake mnnecting rods steps and hydraulic lines as described on 10 20 10 10 20 1 1 10 20 12 6 Remove front drive housing to transmission case cap screws and front drive assembly Be free snap rings from counter shah and move front drive gear and both sides snap rings forward as oossible 7 Remove transmission shift cover to transmission ca...

Page 81: ...agewhen the counter gear falling down Do not fall PTO connecting joint into differential housing INSTALLATION Reverse the removal steps on the preceding page and note the installation instructions that follow 1 When docking transmission case and differential housing mesh range shift gear and differential drive shaft by turning the range gear with hand from window of transmission bottom 2 There are...

Page 82: ...in transmission case 2 Remove three point hitches and drawbar 3 Support the tractor at drawbar bracket 4 Remove rear tire 5 Disconnect ground cable of battery then and safety start cable at PTO shifting lever 6 Removefenders as describedo n page 10 20 7 Disconnect brake rod 8 Removecap screws A and brake cover flashing lo cable ...

Page 83: ...ate washer and brakedrum 10 Disconnect hydraulic control linkage 11 Remove upper link hingeassembly 12 Remove PTO safety guard and PTO shield 13 Removethree cap screws and four nuts 14 Pull PTO assembly out SME2760111 8304 Kinornoto Printed in Japan YMZ76snd 2760 ...

Page 84: ...l case r 18 Removerear axle housing 1 Reversethe removal steps on the precedingpage 2 Find out M I 0 x 58 cap screws which have 10 9T mark on head They are for lower link hinge bracket to axlehousing tedifferential housingand apply with LOCK TITE 3 Reinstall ROPSand seat belt Tightening torque MlO x 58 i10 9Tl 70 Nm 1 7 kgml 52fl lbsl All ofher nunand cap screws 60 N m 1 6 kgml 143ft lbsl SME27601...

Page 85: ...der had 3 Remove three cap screws and seven nuts of hydraulic cylinder casetodifferential housing 4 Remove hydraulic lift assembly with chain hoist 5 Place the assembly on clean stand INSTALLATION Reverse the removalstep on the precedingpage 1 Replace the gasket 2 Tighten hydraulic cylinder case to differential housing cap screws and nuts to 60 Nm 6 kgm 43 ft lbs A CAUTION Reinstall ROPS and seat ...

Page 86: ...ONS AND SPECIAL TOOLS 05 CYLINDER HEAD VALVES AND CAMSHAFT 10 CYLINDER BLOCK LINERS PISTONS AND RODS 15 CRANKSHAFT MAIN BEARINGS AND FLYWHEEL 20 LUBRICATION SYSTEM 25 COOLING SYSTEM SME276OlllBJDl YM276and 276D Kinmofo Printed in Jaw ...

Page 87: ... 96 to 7 97 mm 0 3133 to 0 3137 in 6 90 mm 0 271 in 8 01 to 8 025 mm 0 3153 to0 3159 in 8 08mm 0 318 in 0 04 to 0 06 mm 0 002 to 0 003 in 0 15 mm 0 006 in 4 5 O 1 77 mm 0 070 in 1 77 mm 0 070 in 1 00 0 039 in 1 500 mm 0 059 in Cylinder Head Distorition 0 03 rnm 0 0012 in 0 1 mm 0 004 in Camshaft Gear Backlash 0 08 to 0 16 mm 0 003 to 0 006 in 0 30 mm 0 012 in Camshaft Journal O D Flywheel side jou...

Page 88: ...rnm 0 394 to 0 395 in 10 07 mm 0 396 in Oil Clearance 0 01 to 0 04 mm 0 0004 to 0 0016 in 0 10 mm 0 004 in Push Rod Bend 0 03 mm 0 0012in 0 3 mm 0 012 in Push Rod Length 188 0mm 7 401 in 187 5 rnm 7 382 in TORQUES Cylinder Head Bolts and Nuts Initial 39 Nm 4 0 kgml 29 ft lbs Second 78 Nm 8 0 kgm 58 ft lbs Final 127 Nm 13 0 kgm 94 ft lbs Cylinder Head Assist Bolts and Nuts 29 Nm 3 0 kgml 22 ft lbs ...

Page 89: ...Pinon Pin Bushing I D 26 025 to 26 038 mm 1 024 to 1 025 in 26 100 mm 1 027 in Pin to Bushing Oil Clearance 0 025 to 0 047 mm 0 0009to 0 001 in 0 15 mm 0 006 in Connecting Rod Bearing I D 47 000 to 4 7 M 2 mm 1 850 to 1 852 in 47 100 mm 1 854 in Connecting RodJournal O D 46 950 to 46 964 mm 1 848 to 1 849 in 46 920 mm 11 847 in Bearing toJoumal Clearance 0 036 to 0 092 mm 0 0014 to 0 0036 in 0 15 ...

Page 90: ... mm 2 556 in Others 59 950 to 59 964 mm 2 360 to 2 361 in 59 92 mm 2 359 in Flywheelclutch surface Flatness 14 935 to 14 953 mm 0 588to 0 588 in Clutch shaft to bushingoil clearance 0 3 mm 0 012 in TOROUES Main bearinghousing half cap screws 44 1 to 49 0 Nm 4 5 to 5 0 kgml 32 5 to 36 1 ft lbs Intermediate bearing housing set screws 68 6 to 73 5 Nm 7 0 to 7 5 kgm 150 6 to 54 2 ft lbs Rear main bear...

Page 91: ...8 to 7 2 ft lbsl Cooling System ITEM NEW P A R 7 SPEclFlcATlo s WEAR LIMIT Radiator leakage test 147 Kpa 0 99 kg cm2 21 psi Radiator cap pressure 74 to 103 Kpa 0 75 to 1 05 kgkm I 11to 15 psi Fan belt deflection lOto 15 mrn 318to 518 in at 98 1 N 10 kg1 22Ibs j force Thermostat opening temperature 69 5 to 72 5 C 157 to 163 FI Temperature Sending Units 110 1 2 3 0 Gasket and Bonding Materials AREA ...

Page 92: ...11 094to 1 102in B 26 975 to 26 000 mm 1 062 t o 1 023 in C 50 0mm 1 97 in D 20 mm 0 8 in Flywheel Crankshaft Gear and Pulley Puller TOL 92000000 Removing flywheel crankshaft gear and pulley Use MI0 x 40 mm hole to removeCrankshaft pulley 3361132 Crankshaft Main Bearing Removal and Installation Tools Removing and installingfront and rear main bearings A Metal Piece A B Metal Piece 6I C Spacer F Gu...

Page 93: ...nter hole 17 mm 0 669 in d 13 mm 0 512 in METAL PIECE I01 124460 924301 Dimensions c Centerhole 17 mm 0 669 in e 79 mm 3 11 in f 59 8 to 59 9 mm 2 35 to 2 36 in g 69 8 to 69 9 mm 2 748 to 2 752 in h 16 mm 0 630 in SPACER 124460 92440 Dimensions i 96 mm 3 78 in j 80 0 to 80 1 mm 3 149 to 3 153 in k 90 mm 3 54 in Dimensions c Center hole 17 mm 0 669 in S t 64 96 to M 97 rnm 2 556 to 2 557 in u 24 mm...

Page 94: ... Dimensions w 275 mm 10 8 in 2 16 mm 0 63 in Diameter Pilot Bushing Removal Tool Removingpilot bushingfrom crankshaft Piston RingCompressor Installingpiston into cylinder liner Piston Ring Expander Removing and installing Piston Ring SME276Olll 87M YM276and 276D Kinornoto Prinred in Japan ...

Page 95: ...cations and Special Tools 20 00 9 n Magnetic Finger Holding tappet up when installing camshaft Radiator Tester Checking radiator cap and system leakage SME276011J 8304 Kinornoto Printsd in Japan VM276and Z76D ...

Page 96: ...ming Warped or distorted valve stems Distorted cylinder head Bent push rods Carbon build up valve seats Rocker arm failure Camshaft Failure Distorted Cylinder Head and Cylinder Head Scored camshaft lobes due t o inadequate lubri Gasket Leakage cation Excessive end play due t o bearing failure Improperly tightened cylinder head cap screws Broken or warped camshaft due t o improper valve timing or s...

Page 97: ...m Nut 7 Rocker Arm Support 8 Rockar Arm 9 Valve CleannoAdjusting Saew 10 Snap Ring 11 Wearcap 12 RetainerComr 13 Spring Retainer 14 ValveSpring 15 Stam S a l 16 Valve Guide 17 Cylindar Head Aearnbty 18 IntakeValve 19 Exhaust Valve 20 Cylindec Hmd Asist Bolt 21 Cylinder HeadBolt 22 Cvlindar Head Nut 23 Cylindar Haad Glrkel SME21SOflI8304 YMZ76and 276D Kinamam Printed in dawn ...

Page 98: ...Cylinder Head Valves and Camshaft 20 05 3 CAMSHAFT 1 P u h Rod 2 T a p p t 3 Kay 4 Csrnhaft 5 Bearing 6 Bearing Retainer Susw 7 Camhaft Gaar 8 Fuel Injection Pump Cam 9 Nut ...

Page 99: ...pport nuts and remove rocker arm assembly When removing rocker arm shaft components identify for reassembly into original position 6 Remove rocker arm h a f t end snap rings and slide components from shaft A Snap Ring B Shaft C Rocker Arm Support D Spasr Spring INSPECTION AND REPAIR 1 Inspect rocker arm shah for scratches scores or excessive wear at points of rocker arm contact 2 Check for wear on...

Page 100: ...ngs in the rocker arm Replace bushings if the measurementexceeds the following wear limit Item New Part Wear Limit urhtng 1 0 14 02 ro 14 03 mm 14 10mm 10 5520to 0 5524 in 10 555 in Bushing to Shaft Clearance 0 016 to 0 052 mm 0 15 mm 10 0006 to 0 002 in 10 006in ASSEMBLY AND INSTALLATION 1 Assemble parts on rocker arm shaft in reverse of sequence removed 2 Make sure rocker arm shaft end snap ring...

Page 101: ...ylinder head cover as previously described 5 Removeexcess fuel fuel leak off and injection lines 6 Remove injection nozzles 7 Remove cylinder head lubricatingoil line connecting screws 8 Remove three cylinder head assist bolts 9 Remove cylinder head bolts by following loosening sequence as shown 10 Use a valve spring compressor to remove valves from head SMEZ760111 6304 YMZ76and 276D Kinomoro Prin...

Page 102: ... measure tilt 0 and compare to the following specifications Item NBW Part Wear Limit SpringTilt 0 1 40 mrn 10 055 in A Square B Spring Tilt 3 Measure spring free length and replace the spring if the measurement exceeds the following wear limit 4 Check valve spring tension on a spring tester Item New Pan Wear Limir Spring Free 40 0mm 11 57 ln 1 39 5 rnm 11 55in 1 Valve Wear Caps 1 Check valve wear ...

Page 103: ...tric drill with wire cleaning brush t o remove all carbon from valve seats vAny carbon left on the stem will affect alignment in valve refacer if valves need t o the refaces A few drops of light oil or kerosene will help t o fully clean the valve guides Valves 1 Visually check valve face and stem for damage or wear 2 Inspect valves as shown in picture to determine if valves are out of round bent o...

Page 104: ...easurevalve seats with a vernier calipersand compare measure ment taken to the following specifications VALVE SEAT SPECIFICATIONS C Seat Wldth 2 If the Valve seat width is too wide grind the seat by the sequ ence A B t C A Grind w i e a 4 9 grinder 8 Grind with a 1 9 grinder C Grind with a 6 9 7 9 grinder When the valve seat has been corrected with a seat grinder insert an adjusting shim between t...

Page 105: ...valve height If measure ment taken exceeds specifications replace valves cylinder head or both 1 Install each valve in its guide 2 Check each valve with a micrometer and compare measurements taken with the following specification VALVE HEIGHT SPECIFICATIONS New Part Wear Tolennm 1 00 rnm 0 039in 1 50 rnm 0 059 in SME2760111 7W YM276and 2760 Kinornoto Printed in Jam ...

Page 106: ... if any crack is detected Checking Head Distortion 1 Thoroughly clean the cylinder head 2 Use a straight edge for checking cylinder head flatness by 4 placing it in the indicated positions 3 Measure gap with a feeler gauge Compare measurement taken with the following specifications CYLINDER HEAD DISTORTION New Part Mmimurn Distortion 0 03 mm 0 0012 in 0 1 mm 0 004 in ...

Page 107: ... Install guides with a press and press in until groove in O D of guide reaches cylinder head face A Valve Guide B Groove C Cylinder Head D InstallationTool Valve Stem Seal The valve stem seal must always be replaced whenever it has been removed Assembling Procedure 1 Apply engine lubricating oil to valve stems and guides and install valves in guides from which they were removed 2 Install valve spr...

Page 108: ...nce in Fig to 39 Nm 4 0kgm I29 it lb 4 Retighten head bolts and nuts in sequence in Fig to 78 Nm 8 0 kgml 58 ft lbs and finally tighten to 127 Nm 13kgm I94ft lbs 5 Tighten three cylinder head assist bolts to 29 Nm 3 0kgm 22ft lbs 6 lnstall wear caps on valves 7 Install push rods on valve tappets Be careful for not falling them into cylinder block 8 Install rocker arm assembly on head 9 Tighten roc...

Page 109: ...ollowing specifications INTAKE AND EXHAUST VALVE CLEARANCE SPECIFICATIONS 1867018 0 2 mm 10 008 in FRONT OF ENGINE E 0I 0I E 0I 1867020 FRONT OF ENGINE 7 Turn the crankshaft clockwise 2 4 0 to align the TDC mark of the No 3 cvlinder INTAKE AND EXHAUST VALVE CLEARANCE SPECIFICATIONS 0 2 mm 10 008 in 1 8 Check the valve clearance of the intake and exhaust valves of the No 3cylinder and adjust to pro...

Page 110: ...back and forth slightly while making sure crankshaft gear does not move Check backlash on indi cator while moving gear and compare to the following specifi cations CAMSHAFT GEAR BACKLASH SPECIFICATIONS Wear Toleranee 0 30 m m 10 012 in 9 If backlash exceeds wear tolerance replace either or both gears A step wear pattern on gear teeth indicateswear CAMSHAFT REMOVAL 1 Remove tractor front end and ti...

Page 111: ... lobes do not drag in bores 7 Loosen Nut A and remove injection pump drive cam 0 and camshaft gear C Nut A has left hand threads A N u t B Injection Pump Cam C Drive Gear D Camshatt 8 Supporr camshaft bearingsin a press 9 Presscamshaft from bearings Prevent camshaft from striking floor when pressingcamshaft from gear INSPECTION Camshaft I Measure bearing journals and bearing surface in block and c...

Page 112: ...o 1 671 in 11 665 in Bearing 1 0 42 500 to 42 525 mm 42 58 mm 11 673 to 1 674 in 11 676 in 011 Clearance 0 05 to 0 10mm 0 15 mm 10 002 to 0 004 in 10 006 in CAMSHAFT LOBE SPECIFICATIONS New Pan Wear Limit Intake and exhzurt Valve IAl 35 00 mm 34 50mm 11 378 in 1 11 358 in ln ectian Pump 181 Tappets 1 Removecamshafttappets from block Tappet centers are out of alignment with the camshaft lobe center...

Page 113: ...ion Tool Bearing should be pressed on until it bottoms on shoulder of camshaft 2 Make sure key is in place before installing gear and injection A pump cam 3 Install camshaft gear and injection pump cam 4 When installing injection cam to camshaft make sure the mark 0 on the cam faces to front Tighten nut The nut has left hand thread The injection pump cam has a installing direction If installed wit...

Page 114: ...Contaminated Oil lmproper periodic service LOWoperating temperature Stuck Rings lmproper oil classification lmproper periodic service Poor operating conditions Coolant leakage in crankcase Cylinder Liner Wear and Distortion Incorrectly installed compression rings Insufficient lubrication Unevencooling around liner lmproper piston liner clearance Liner bore damage Warped Cylinder Block lnarfficient...

Page 115: ...PISTONS AND RODS 1 Liner 2 Cylinder Blodt 3 Oil Pan Packing 4 Drain Plug 5 Oil Pan 6 Oil PanCap Screws 7 Piston Ring Topl 8 PiRon Ring 2nd 9 Oil Control Ring 10 Piston Pin ll Snap Ring 12 Pin Burhing 13 Connecting Rod 14 Rod Baaring Inserts 15 ConnectingRod Bolts 16 Cap ...

Page 116: ...pective rods and caps Each rod and cap assembly have identify numbers on their side faces to the camshaft side of cylinder block 4 Gently tap piston and connecting rod out of cylinder top INSPECTION AND REPAIR Piston Ringsand Ring Grooves 1 Examine piston rings for damage wear and scratched or scored conditions 2 Use tools from Ring Expander to remove piston rings 3 Measure clearance between pisto...

Page 117: ...specifications PISTON DIAMETER SPECIFICATIONS New Put W e s Tolsnnca Piston Pinsand Bushings A 1 Measure piston pin O D and compare measurement taken with the following specifications 2 Measure piston pin bushing I D and compare measurement taken with the following specifications PISTON PIN AND BUSHING SPECIFICATIONS N W Part Wear ToIwance Pin O D 19 991 to 20 00 mm 19 9Omrn 0 7870 to 0 7874 in 0 ...

Page 118: ...kshaft journal to obtain oil clearance 7 Compare the measurements with the following specifications ROD BEARING AND JOURNAL SPECIFICATIONS O D of Bearing Journal 3995 to 3996 mm 39 92 mm 11 573 to 1 574 in 11 572 in I D of Asernbled Rod Bearing 40 00 to 40 04 mm 40 10 mm 11575to 1 576 in 1 579 in Oil Clearance 0 04 to 0 09 rnm 0 15 rnm 10 002 to 0 004 in 10 006 in When rod is connected to cranksha...

Page 119: ...TOP i n g 0 25 to 0 45 mm 1 5mm 0 009 to 0 017 in 10 06 in Second Ring 0 20 to 0 40 mm 1 5rnm 10 008 to 0 016 in 10 06 in Oil Ring 0 25 to0 45 mrn 1 5mm 10 009 to 0 017 in 10 06 in ASSEMBLY AND INSTALLATION The method of piston pin fastering is a called a free floating type The in is free to turn in the bosses and in the rod A Oil Holes Before installing pin bushing make sure oil holes in bushing ...

Page 120: ...aion Ring C Oil Ring 7 Manufacture s mark near the ring gap must face the top of piston when assembled 8 Install rings on piston using Ringe pader A Expander 8 Pinon ring 9 Before installing pistons make sure ring gaps are betweenpiston pindirection A and piston thrust direction 81 A P i o n Head B Piston Pin Direction C PistonThrust Direnion D Top Ring E Second Ring F Oil Ring I E ...

Page 121: ...arefully place ring compressor with piston and rod ovel liner 13 Position piston and rod so identification on rod faces toward flywheel side of engine 14 With piston centered in installing tool and rings staggered correctly push piston into liner 15 Install connecting rod caps and tighten to 44 to 49 Nrn 4 5 to 5 0 kgml 29 to 36 ft lbs SME2760 714304 YM276and 276D Kinornoto Printed in Japan ...

Page 122: ... pin at the both top and bottom of ring travel CYLINDER LINER I D SPECIFICATIONS New Part Wear Tolerance 84 00010 84 035 mm 84 18 rnm 3 307to 3 308 in 13 314 in 3 Compare liner I D measurements t o piston skirt measurements See specifications below LINER TO PISTON CLEARANCE NBWPart Wear Tolerance 0 068to0 133rnrn 0 28mm 10 002 to 0 005 in 10 011 in When removing liners identify for reassembly into...

Page 123: ... face CYLINDER LINER O D SPECIFICATIONS A 88 00 to 88 01 mrn 3 4646 to 3 4650 in B 87 98 to 87 99 mrn 13 4638 to 3 4642 in C 87 99 to 88 00 mrn 13 4642 to 3 4646 in CYLINDER BLOCK BORE I D SPEClFlCATlONS A 88 02 to 88 03 mrn 13 4654to 3 4657 in B 88 01 to 88 02 mm 3 4650to 2 4654 in C 88 00 to 88 01 13 4646to 3 4650 in The liner must be installed into the bore has the same mark as it That is the l...

Page 124: ...Coolant in lubrication system Insufficient bearing oil clearance Parts not lubricated prior t o engine operation Wrong bearing size Uneven Wear Pattern Misaligned or bent connecting rod Warped or bowed crankshaft Distorted cylinder block Broken Main Bearing Caps Improper installation Dirt between bearing and crankshaft journal Low oil pressure Oil pump failure Cracked Chipped or Broken Bearings Ov...

Page 125: ...in Bearing Housing 4 Rear Main Bearing 5 Rear OilSeal 6 Crankshaft 7 Front Main Bearing 8 Governor Weights 9 Thrust Bearing 1 0 Intermediate Main1 Bearing Hourinp Halves 11 Plain Bearing 12 Sstsuews 1 3 Crankhaft Gear 14 Governor Sleeve 15 Front Oil Seal 16 Pulley SME276Q1118304 YM276and 276D Kinornoto Printed in Jswn ...

Page 126: ...e 0 33mm 10 013 in Use care not to distort the timing gear mver or pulley when p w w BEFORE REMOVING To inspect and repair the followings engine must be removed from the tractor See Engine Removal on page 10 20 7 Cylinder head Removal on page 20 05 6 and Piston Removal on page 20 10 3 1 Crankshaft 2 Intermediatemain bearings 3 Rear oil seal 4 Rear main bearing 5 Flywheel and Pilot bushing To inspe...

Page 127: ...d at the original Dosition 3 Check flywheel for cracks or damage particularly around clutch mounting A and flywheel mounting cap screw holes IB A Clutch MountingHoles B Flywheel MountingCap Screws 4 Place a straight edge on the clutch disk friction surface and use a feeler gauge t o check for flatness FRICTION SURFACE FLATNESS SPECIFICATIONS New Part 0 07 rnm 10 003 in Maximum Warpaga 0 20 mm 0 00...

Page 128: ...il can ignite above 1 9 3 380 Use a thermometer and do not exceed 1 8 2 360 F Do not allow a flame or heating element to be in direct contact with the oil Heat the oil in a wellventilated area Plan a safe handling procedure to avoid burns 5 Tap heated gear into place against flywheel shoulder Clutch S h a f t Main Drive Shaft Pilot Bushing 1 Measure 1 D of clutch shaft bushing and O D of clutch sh...

Page 129: ...a 4 Use a pry bar t o remove oil seal 5 Measure 1 D of rear main bearing at the four points shown Compare measurements taken with the following specifications REAR MAIN BEARING SPECIFICATIONS New Part Wear Limit 65 OWto65 045rnm 65 10mm 6 Remove bearing by using Crank Shaft Main Bearing Removal and Installation Tool Kit A Bearing B Guide Lam1 C Spamr D Bolt E Nut F Metal Piece A 7 To remove bearin...

Page 130: ...ing is offset Also make sure of the installing direction The chamfered edge of bearing must face oil seal side 4 Tighten nut to install bearing 5 After installing a new bearing measure I D and check for distortion 1862024 ASSEMBLY Continued Rear Oil Seal The crankshaft oil seals are spiral oil seals Pumping sealer A lip design in the seal prevents oil from leaking during crankshaft operation DO NO...

Page 131: ...a s crankshaft rotation A Rotation Arrow B Rotation Mark C Oil Seal Inside Diameter D Oil Seal Outside Diameter E Oil SealThickness 4 Install seal into bearing housing by using an installation tool SMEZ760111 8304 YMZ76and 2760 Kinomoro Printed in Japn YE62023 1864003 Never tap oil seal directly as shown ...

Page 132: ... 10 20 7 2 Remove cylinder head and pistons See page 20 05 6 and 20 10 3 3 Remove flywheel See page 20 15 4 REMOVAL 1 Removecrankshaft pulley retaining nut ieffi213 2 Use a pullerto remove pulley 3 Removetiming gear cover 4 Removegovernor sleeve from crankshaft 5 Remove nut A and governor weight assembly 0 to remove crankshaft gear C 6 Remove crankshaft gear C SME2760111 8304 YM276 and 276D Kmomot...

Page 133: ...usings 10 Carefully lift crankshait from block 10 Carefully pull crankshaft out of cylinder block Be careful not to damage the outer surfaces of the inter mediate main bearing bodies during crankshaft removal 11 Remove intermediate main bearing housing cap screws C and remove housing A 0 from crankshaft A Bearing housing 8 Bearing Housing C Housing Cap Screws SME2760111 B304 YMZ76 and 2760 Kinorno...

Page 134: ... INTERMEDIATE BEARING SPECIFICATIONS New Part Wsar Limit Width 29 83to29 91 mm 29 80 mm 11 1744 to 1 1776 in 1 11 1722 in 4 Measure the inside diameter of front main bearing in both the A A and B B directions Compare the measurement taken with the following specifications FRONT MAIN BEARING SPECIFICATIONS New Pan Wear Limit 1 0 60 OM to 60 MSmm 60 10 mm 12 362 to 2 364 in 12 366 in IntermediateOil...

Page 135: ... of Assembled 41 0 to 47 042 mm 47 10 mm Rod Bearing 11 850 to 1 852 in 11 854 in Oil Clearance 0 036 to 0 092 mm 0 15 mm 10 0014to 0 0036 in 10 006 in 3 Inspect crankshaft bent or warp by using dial gauge while rotating the crankshaft on V blocks CRANKSHAFT MAIN BEARING JOURNAL SPECIFICATIONS New Part Wear Limit Front 10 0 59 950 to 59 964 mm 59 92 rnm 12 360 to 2 364 in 12 359 in Inter mediate l...

Page 136: ...sure I D and check for distortion Intermediate Main Bearings and Crankshaft 1 Coat intermediate bearings with engine oil and install in bearing housing halves Make sure the bearing halves with a oil hole i s installed in the upper bearing halves and the oil hole of bearing align the oil hole of bearinghousing Make sure tangs on bearings fit in recesses in bearing housing 2 Assembly bearing housing...

Page 137: ...om the cover ASSEMBLY The crankshaft oil seals are spiral oil seals Pumping seals A lip design in the seal prevents oil from leaking during crankshaft operation DO NOT apply grease to the lip of seal This would eliminate real pumping ability j 1 Clean the oil seal seating area of timing gear cover 2 Be sure the installation direction of oil seal is correct The open side faces cylinder block side o...

Page 138: ...ousingset screws Do not tighten yet 5 Tighten set screw in bearing housing nearest flywheel first Thrust bearing housing to 73 5 Nm 7 5 kgm 54 2 ft lbs 6 Tighten the remaining set screw to 73 5 Nm 7 5 kgm 54 2 ft lbs1 7 After tightening set screws make sure the crankshaft rotates smoothly 8 When installing rear main bearing housing make sure oil hole in bearing housing and oil hole in block are al...

Page 139: ...en tightening cap screws 12 Install key in groove in crankshaft beiore installing crankshaft gear 13 Align key groove in gear with key on crankshaft 14 Install governor weight assembly on the gear 15 Use special deep socket to tighten and drive crankshaft gear onto crankshaft Tighten on gear until it is tight against shoulder on crankshaft to 69 to 73 Nm 7 0 to 7 5 kgm 51 to 54 ft lbs SME276011143...

Page 140: ...e Excessive main bearing clearance Clogged suction tube screen Excessive clearance between oil pump rotors and pump body High Oil Pressure Improper oil type Clogged oil lines Oil pressure regulating valve failure Oil Sludge and Dilution Improper operation and servicing Coolant leakage into lubrication system Incomplete combusion Excessive oil temperature ...

Page 141: ...System LUBRICATION SYSTEM 1 Sunion Tube 2 Filter 3 Valve Body 4 Ball Valusl 5 Spring 6 Shim 7 Spring Retainer 8 PrerrureSsnding Unit 9 Pump DriveGear 10 Pump Body 11 lnnsr Romr 12 Outer Rotor 13 Pading 2 14 Lube Oil Line ...

Page 142: ...eeds wear tolerance replace oil pump gear 5 When replacing gear pump assembly must be replaced Because the gear is prossed on the pump shaft LUBE OIL SUCTION TUBE AND SCREEN INSPECTION AND REMOVAL 1 Inspect suction screen for clogged condition 2 Loosen locknut and remove suction tube A Suction Tube B Oil Pralsage C Lock Nut INSTALLATION 1 Clean thread of tube and cylinder block with solvent 2 Coat...

Page 143: ...Add shim s to increase oil pressure and subtract shims to decrease oil pressure Addition of one shim increases oil pres sure 17 Kpa 0 18 kg cm2 2 6 psi I I INSTALLATION 1 Install ball ID spring C shim s Is and spring retainer A in valve body El 2 Install valve body in timing gear cover and screw completely in by hand 3 Install locking nut F on valve body 4 Install oil filter A Spring Retainer B Sh...

Page 144: ...ar Tolerance 0 1 5 mrn 0 006 in 3 Use a feeler gauge to check clearances between outer rotor and pump body Compare measurement taken with the following specifications OUTER ROTOR TOPUMP BODY CLEARANCE New Pan 0 10 to 0 16 mm 0 004 to 0 006 in Wear Tolerance 0 25 mm 0 01 in 4 Check inner rotor to outer rotor clearance between a high point on inner rotor and high point on outer rotor Compare meas ur...

Page 145: ...r 81 in pump body 3 Install key in inner rotor shaftassembly 4 lnstall cap screws in pump body 5 Install gear on shaft A Packing 6 Outet Rotor C Inner RomrShaft assembly n P E Pump Body F Gear 6 lnstall packing A on pump body 7 Install pump so spring pin 8 enters hole in block 8 Tighten cap screws to 8 to 12 Nm 0 8 to 1 2 kgml 6 to 8 tt lbsl ...

Page 146: ... oil level Improper operation Defective head gasket Incorrect timing Faulty thermostat Faulty radiator cap Faulty water pump Corroded coolant passages Low Coolant Level Improper maintenance Improper operation Damaged radiator Water pump seal leakage Leakage Faulty radiator cap SME2760111a04 YM276end 2760 Kinornoto Printed in Jawn ...

Page 147: ...20 252 Cooling System COOLING SYSTEM SME2760111 3M YMZ76 and 2760 Kmomom Prrnred in Jamn ...

Page 148: ... 0 74 to 1 05 kglcm 11 to 15psi CHECKING BELT TENSION Check tension of fan belt and adjust if necessary Fan belt should deflect 10 to 15 mm 318 to 518 inch when 98N 10 kg 22 Ibs force is applied WATER PUMP REMOVAL AND DISASSEMBLY 1 Drain cooling system 2 Remove fan belt and water pump hoses from water pump 3 Remove water pump to thermostat housing cap screws and remove water pump 4 Use a pressto p...

Page 149: ...D INSTALLATION A Hub B Shaft C Bearings D Housing E Seal F ImpBIIer 1 Inspect seal A and ceramic insert in impeller 13 for wear 2 If seal was removed use hydraulic presst o reinstall 3 Installing bearing SME2760111 8304 YM276and 2760 Kinornoto Printed in Japan ...

Page 150: ... in bearing until bearing is flush with end of housing 5 Support water pump in a press a s shown Press in impeller until impeller flushes with end of bearingshaft 6 Press on hub until hub is flush with end of bearingshaft SME276011J8304 YM276and 2760 Kinomoro Printed injam ...

Page 151: ...2 Remove radiator hose from thermostat cover 3 Remove thermostat cover 4 Remove thermostat 5 Check thermostat in a thermostat tester Thermostat should open at 69 5 to 72 5 157 to 163 6 Check temperature sender in thermostat tester with circuit tenter Current should flow at 1 1 0 1230 F ...

Page 152: ...FUEL AND AIR REPAIR 30 00 SPECIFICATIONS AND SPECIAL TOOLS 05 AIR INTAKE SYSTEM 10 FUEL SYSTEM 15 SPEED CONTROL LINKAGE ...

Page 153: ...DC Fuel Injection Nozzles Model YDN Noule OpeningPressure 15 68 Mpa 160 kg cm2 2275 psi Nozzle Retainingnut 88to 98 Nm 9 10 kgml 65 72 ft lbs Upper Holder nut 69 80 Nm 7 8 kgm 51 58 ft lbs Fuel Delivery Valve Holders 44 Nm 4 5 kgm 33 ft lbsl Governor Limiter Spring DimensionAdjustment 0 8 0 1 mm 10 031 0 004 in NEW PARTS SPECIFICATIONS WEAR LIMIT Limiter Spring Free Lenth Spring Compression 18 0 m...

Page 154: ...ficationsand Special Tools SPECIAL TOOLS Nozzle Tester D 50 Checking nozzle opening pressure Nozzle Cleaning Kit InjectionPump Adjusting Adapter TOL 92060000 MeasuringPumps plunger top clearance with a dial gauge ...

Page 155: ...gged air cleaner Broken Air cleaner filter or system leakage near liner and piston rings Black ExhaustSmoke Clogged air cleaner Dust deposit in air cleaner Dust is sucked through broken packings Overload precleaner SME276011187W YM276and 276D Kmomora Printed in J a p n ...

Page 156: ...30452 Air Intake System AIR INTAKE SYSTEM SME276011Ja M Kinornoto Printed ...

Page 157: ...leaner assembly 2 Remove wing nut 0 to disassemble precleaner bowl INSPECTION AND SERVICE 1 Inspect seal washer IA and rubber seals 01 for cracks or deterioration Replace if required 2 Dump any chafs or dust collected in a bowl 3 Clean all pre cleaner components CI e INSTALLATION 1 Install pre cleaner base on air cleaner intake pipe 2 Tighten pipe clamp nut 3 Assemble pre cleaner bowl and tighten ...

Page 158: ...permit dust to enter Repair a s required 3 Service filter element whenever a overhaul or tune up is to be performed on the engine See tractor operation manual for element service instructions A Dun cup B DwlCollscmr C Elemsnt D Canismr INSTALLATION 1 Mountair cleaner canister on tractor 2 Install element into the canister and tighten wing nut 3 Install dust collector and cup on air cleaner canisto...

Page 159: ...and heater coilligniter continuity Check Valve Test Perform the check valve test to make sure that the ball check valve works correctly Use the following procedure 1 Connect shop air supply A to inlet line B and to thermostart plug C Regulate pressure to 137 Kpa 1 4 kg cm2 20 psi Use any suitable line as a means to mnnect air hore t o the thermostart plug A piece of m p p r tubing bent in the shap...

Page 160: ...ct the intake manifold to see that it is not cracked or have any other defects which would permit unfiltered air to enter the combustion chamber Repace the intake manifold should it be defective INSTALLATION If gasket is not in good condition remove all the old gasket material from cylinder head and intake manifold and replace with a new one 1 Install manifold using a new gasket Tighten stud nuts ...

Page 161: ...ged fuel system line Clogged air filter element Air in fuel Water in fuel Clogged fuel filter Engine Runs Irregularly or Misses Air in fuel injection pump and lines lnjection pump contains air Defective nozzle Faulty injection pump EngineStalls Frequently Clogged fuel line Cloggedfuel filter Air in fuel Clogged fuel tank air vent Excessive Fuel Consumption Improper injection pump timing Excessive ...

Page 162: ...EL FUEL SYSTEM A FuelTank B Fuel Filter C Fuel Ini etionPump D Fuel Injection P i p E hjsetion Nouls F Ex Fuel Line G ThmnoMrt FuelCup H TharrnOmrt Plus I Fuel R m m Line SME230171 83M YMZ76 and276D ina am om Printed in Japan ...

Page 163: ...ing wheel 4 Remove cowl and instrument panel a Remove panel A b Disconnect wiring harness leads from all electrical compo nents switches lights etc C Disconnect tachometer drive cable from tachometer 6 or engine and decompression device control cable C at engine end d Remove instrument panel and panel box ID from tractor el Disconnect the fuel return hose A from tank B f Disconnect and removetank ...

Page 164: ...e water may have been forced through 2 Air Pressure Method Plug or cap filler neck and fuel outlet holes Attach an air hose to the fuel return hole Submerge tank in clean water and apply approximately 20 Kpa 0 2 kg cm2I 3 psi air pressure Look for air bubbles in water coming from a source of leak REPAIR The fuel tank is not repairable If tank leaks replace with a new one INSTALLATION Make sure tha...

Page 165: ...attaching screw F It may be necessary at some time to repair the filter housing because of fuel leakage from around the shut off level or bleed screws A INSTALLATION To install the filter assembly reverse the removal steps given above Refer to page 230 10 6for instructions on how to bleed air from the fuel system A Valve Handle B O ring C VaCe Spring D Valve E Bleed Screws F W a h e n G Filter Hou...

Page 166: ...e the fuel injection pump A 1 Close the fuel shut off valve at fuel filter 2 Remove attachingscrew from fuel inlet banjo fitting A 3 Disconnect the speed control rod and swivel BI from pump regulator handle ICL 4 Disconnect and remove the fuel pipes Be sure to plug or cap both ends of each pipe to keep contaminants out 5 Removecover plate D from timinggear cover A Banio Fitting B Control Rod C Reg...

Page 167: ...Rack Pin B 2nd Governor Laver C Nut PUMP TIMING ADJUSTMENT 1 Disconnect No 1 fuel injection pipe lA1 Remove that No 1 cylinder or injection pump plunger is the one closest to the engine flywheel 2 Place throttle lever at maximum speed position and fuel shu off valve should be opened 3 Assemble a 27 rnni or 1 1 16 in socket and a ratchet handle together and place socket on crankshaft pulley nut Rat...

Page 168: ...n The injection mark is at 21 degree B TD A TimingMark 9 Connect fuel injection pipe to pump Tighten connector to 27 Nm 12 7 kgm 20 ft lbs 10 Bleed air from fuel system Chapter 230 Stan engine and check for leaks DISASSEMBLY Never loosen or remove barrel adjust screw A adjurt plate 6 and adjust plateretainingrnew C If they had been removed the pump must be adjuned for injectionvalume by pump teste...

Page 169: ...uides from missing or mixing them with other cylinders 4 Remove plunger plunger spring spring lower retainer of No 1 cylinder When removing plunger never touch the plunger with fingers for run prevention 5 Remove the plunger spring upper retainer and control sleeve of No 1 cvlinder 6 Remove the delivery valve holder and spring of No 1cylinder ...

Page 170: ...ylinder together 8 Remove the right plunger barrel of No 1 cylinder 9 Repeat the same procedure 1 to 8 to remove the center plunger and relatedparts No 2 cylinder 10 Repeat the same procedure 1 t o 8 to remove the left plunger and related parts No 3 cylinder 11 Remove the fuel mntrol rack ...

Page 171: ...ct the outside diameter of the plunger Examine the surface with a magnifying glass even the slightest imperfection will prevent the plunger from operating properly Check for buns nicks corrosion cracks chipping and excessive wear If necessary replace the plunger and barrel assembly A Chip on Uppr Lead Edae B Chip on Lowar Lead Edge Free Fall of the Plunger and Barrel After thoroughly cheaning the ...

Page 172: ... rack and may cause engine trouble A Control Rack B Slaves Inspection of the Delivery Spring and Plunger Spring Check for any abnormal contactldamage and deformation of the springs Place the spring on a flat surface and use a square A to check if spring is cocked If spring is out of square measure distor tion 8 and compare to the followingspecifications SPRING TILT SPECIFICATIONS Nwr Pan Wear Limi...

Page 173: ...ing assembly clean the pans in clean fuel oil and align the matching parts 1 Place the plunger barrel packing in position 2 Installthe plunger barrel 3 Install the delivery valve assembly and the delivery spring 4 Install the delivery valve holder then tighten ittentatively The specific torque is 45 N m 4 5 kgm 30 ft lbs C 5 Install the control rack ...

Page 174: ... retainer A and plunger spring 6 A UpperSpring Ratainer B Plunger Spring 9 Install the lower plunger retainer A to the plunger 6 and install them in the plunger guide bore A Plunger Retainer 8 PIungBr 10 When installing plunger align the punch mark A to the mark on control sleeve B A Punch Mark on Plower B Mark on ControlS l m e C P t r 1863317 SMEZ76OII B W YM276and 276D Kinornoto Printed in Jam ...

Page 175: ...r guide 6 A Shims B Plunger Guide 12 Install the plunger guide stopper Set the stopper by pressing the plunger by hand Press the plunger guide with moving the rack slightly so that the plunger shoulder can be fixed into the groove of sleeve 13 Set the plunger guide stopper pin A Stopper Pin ...

Page 176: ... nozzle tip should always be directed away A from the operator Fuel spray can penetrate clothing and skin causing serious personal injury It i s recommended that the spray be collected in a container as shown Before applying pressure to the nozzle tester be sure that all connections are tight and that the fittings are not damaged Fuel escaping from a very small hole can be almost invisible Use a p...

Page 177: ...ressure Each 0 1 rnm 0 004 in shim changes the opening pressure approximately 686 980 Kpa 7 10 kg cm2 100 142 PsiI Leakage Test To check for a leaking nozzle wipe the nozzle dry Bring the Pressure up slowly to 13 72 Mpa 140 kg cm2 11990 psi and watch for an accumulation of fuel from the spray orifice indicating a bad seat If the nozzle drips within 10 seconds replace the nozzle assembly Check for ...

Page 178: ... spray should be very broad and finely atomized A partially clogged or eroded throttling valve will usually cause the spray to deviate from the correct angle The spray will also b e streaky rather than finely atomized Disassemble the nozzle for cleaning or reconditioning if it fails to chaner or spray properly CONDITION CAUSE B 1 Injection hole worn 2 Carbon deposit in Ihe i Gmd C Inmrrect 1 Law i...

Page 179: ...er C Nozzle Nut 3 Remove nozzle holder from wrench and withdraw shims 3 spring 4 lower spring seat 5 and inter spindle 61 from holder 4 Insert nozzle holder upside down in wfench Loosen and remove the nozzle retaining nut C Remove nozzle from holder 5 Withdraw nozzle valve from nozzle If valve isstuck it may be necessary to soak the nozzle assembly in Bendix cleaner acetone or other commercial cle...

Page 180: ...d of valve is not broken If any of these conditions are present replace the nozzleassembly 5 Inspect condition of seat for nozzle valve and nozzle Contact area of seat both parts must not be scored or pitted Use an inspection magnifier to aid making the inspection A bad nozzle valve seat will cause fuel to drip from the nozzle This condition usually will be noted when making Leakage Test described...

Page 181: ...on Check fuel passage C in nozzle holder to make sure that it is open Clean with compressed air Nozzle Retaining Nut Remove carbon deposits on both inner and outer surfaces of the nozzle retaining nut lnspect the retaining nut for a damaged lower seating surface seatsagainst head insultating packing on precombustionchamber A seating surface may be restored by rubbing the surface on emery cloth Any...

Page 182: ...oth conditions exist Assembly 1 Insert the nozzle valve into the nozzle while holding pans below the fuel level in pan 2 Install the nozzle assembly on holder and secure with the nozzle retaining nut 91 Tighten nut 90 100 Nm 9 10 kg 67 73 ft lbs torque 3 Place inter spindle 61 spring seat 5 spring 41and shims 3 in nozzle holder while still wet with fuel 4 Install upper holder nut 11 with copper wa...

Page 183: ...ipes to injection nozzles before installing retainers 2 Install retainer B on injection nozzle with side of retainer having two V type protrusions resting on injection nozzle 3 Tighten the injection nozzle retainer stud nuts A1 to 20 Nm 2 kgm 15 ft lbsl torque Be sure to keep retainer even a s nuti are tightened 4 Install the leak off banjo connectors C and washers on injec tion nozzles Connect ru...

Page 184: ...t the correct angle If the precombustion chamber can not be removed as described above it will be necessary to remove the cylinder head See page 2005 6 and drive out the chambers using a suitable and drive out the chambers usinga suitable soft driver NEVER USE STEEL DRIVER A Tang Repair he heat insulating packing improves the durability of the injection nozzle by preventing combustion heat from be...

Page 185: ...ection pump a s shown on page 30 10 7 2 Remove timing gear cover a s shown on page 20 05 15 3 Remove regulator spring F 4 Remove cap screws H and remove Governor Lever Assembly A 1nGovemor Lever F RsgulstorSpring B 2nd Governor Lever G Regulator Lever C C n n o ILevn H C a p S m m D Governor Shah I Timing Gear Cover E Governor Spring 5 Punch Taper pin A out and remove 1st Governor lever B from gov...

Page 186: ...ulator handle 8 and pull out regulator lever Notshown A Pin B Regulator Handls 9 Remove governor sleeve and governor weight assembly See page 20 1549 10 Removecap nut A and loosen lock nut 8 A Cap Nut 8 Lock Nut 11 Remove injection limiter Do not have to remove timing gear mver to repair or replace only injection limiter SME 7760121 8705 YM276and 276D Kinornoto Printed in Japan ...

Page 187: ...n at 10 lbs A Spring Length B Coil Length Governor Sleeve Slide the sleeve on crankshaft to check if it move smoothly Measure I D of sleeve and 0 0 of crankshaft Compare measure ment taken with the following specifications GOVERNOR SLEEVE SPECIFICATIONS New P a t Wear Limit Sleevel D 25 117to25 138mm 0 989 to 0 990 in Crankshaft 0 0 24 939 to 24 960 mm 0 982 to 0 983 in Clearance 0 06 to 0 1 mm 0 ...

Page 188: ...s not move smoothly Inspect the contact and wear of the pins GJ at the end of 1st governor lever 0 A Shah B InGovernor Lever C 2nd Governor Lever D Bmringr E Control Leva F Shah BncLet G Pins H T p a Pin Regulator Lever and Handle Replace the regulator lever and handle together if there is P I betweenthe lever A and handle 0 The lever and handle are drilled hole for taper pin together to get speci...

Page 189: ...with a new one A Protrusion B Limiter Snew C Limiter Pin D Spring E Shim F Checking L d G Lo Nuts INSTALLATION AND ADJUSTMENT Reverse the removal steps to install on the preceding pages But the fuel injection limiter should be installed after installingtiming gear cover When assembling reffer to the following tighteningtorques TORQUE SPECIFICATIONS Governor shaft bracker cap screws 7 9 to 11 7 Nm ...

Page 190: ...ontrol rack E until the punch mark F on control rack E is centered on reference face G of pump housing A Screw Drive E Control Radt B Governor Laver F Pun Mark C Ra ulamr Lever G ReferenceSurface D LimbScrew H Spacer 4 FOR LIMITER WlTH WHITE PAINTMARK Remove the screw drive A and the spacer El and screw limiter 220 to 230 518turn out of timing gear cover FOR LIMITER WITHOUT MARK Remove the screw d...

Page 191: ...turn spring Rust on throttle lever bracket REMOVAL 1 Disconnectspring E and two rods B and D 2 Take off two nuts which fasten the throttle lever assembly A to bracket Remove lever assembly Be careful not to lose detent ball and spring Engine runs irregularly Weaken return spring Worn friction disc Enginecan not keep a certain speed Worn friction disc Improper preload adjustment of throttle lever S...

Page 192: ... connect with control levers Excessively loose linkage connections will give poor response to selecting engine speed Worn linkage connections can usually be repaired by welding Use brass welding rod to fill worn holes and worn control rod ends Restore repaired areas to the original size and shape If unable to repair worn pan satisfactorily reolace with a new one 1 Thrntu L m 2 Larar Grip 3 DRanl B...

Page 193: ...ons where control rods connect with control levers Excessively loose linkage connections will give poor response to selectingengine speed Worn linkage connections can usually be repaired by welding Use brass welding rod to fill worn holes and worn control rod ends Restore repaired areas to the original size and shape If unable to repair worn part satisfactorily replace with a new one INSTALLATION ...

Page 194: ...30 154 Speed Controll Linkage ...

Page 195: ...ELECTRICAL REPAIR 40 00 SPECIFICATIONS AND SPECIAL TOOLS 05 GENERAL INFORMATION 10 CHARGING CIRCUIT 15A 11 CHARGING CIRCUIT 35A 15 STARTING CIRCUIT 20 LIGHTING AND ACCESSORY CIRCUITS ...

Page 196: ...h 89 Nm 9 kg 20 lbs force applied 10to 18 mm 318to 518 in Regulator Model RS1105 A Changing Circuit 35A Optional for Northern Europe Alternator Model LT135 54 Alternator output minimum at 2600 rpm 35A Pulley nut torque 54 Nm 5 4 kgm 40 ft lbs Belt deflection with 89 Nm 9 kg 20 lbs force applied 10 to 16 mm 318to 518 in Regulator Model TLlZ 86E Starting Circuit NEW PART SPECIFICATIONS WEAR LIMIT No...

Page 197: ...2V 25Wl25W Warning Lamp 12V 23W 1156 WorkLight 12V 20W 1034 Oil pressure temperature charge indicator and hourmeter lamps 12V 3W 53 Water temperature sender Closes light on a t Opens light off at Oil pressuresender Closes light on below Charge indicator light off 1 kglcm2 14 2 psi 530 rpm Engine SME27b l111a3W YM276snd2760 K nornofo Printed in Japan ...

Page 198: ...and Special Tools 40 00 3 SPECIAL TOOLS Battery Tester Test battery Circuit Tester V A S2 Meter Test all electrical components for voltage resistance or Current draw Hand Held Tachometer Measuring starter motor speed ...

Page 199: ...al circuits are off i h e ignition key can be removed only in this position In Position C all circuits except starting and thermostart are energized The switch is in this position during normal operation In Position D the starting circuit is energizedand the starter turns When the engine starts and the key is released the key will spring back to Position C FUSE HOLDER 6 The fuse holder mou nted on...

Page 200: ...y terminal 2 Disconnectharnessconnector 3 Support alternator 0 and remove one mounting nut D and adjustingscrew C 4 Lift off alternator A Connector B Almnsmr C Adjusting Screw D MountingSnsw DISASSEMBLY 1 Remove nut A from end of shaft A Nut B Alternator Body 2 Pull flywheel A with magnetsfrom body of alternator B A Flywheelwith Maneb B A l t w m r Body C Nut and Warhsrr ...

Page 201: ... as necessaw A Outer Bearing B Flywheel C M gnats 2 Inspect bearing A in alternator body 6 for damage or wear Replace as necessary A Inner Bearing B Alternator Body 3 To preform stator coil continuity test use circuit tester A Clip one terminal of connector 6 and touch the probe C of tester to other terminal of connector Continuity should be observed If no continuity isobserved replace coil assemb...

Page 202: ...sembly 7 Install washers C and B and tighten nut A to 3 to 3 5 kgm 22 to 25 ft lbsl torque A Nut H S a w B Spring Washer I Oumr Bearing C Wahsr J Flywheelwim Mapnee D Inner Buring K Pvlly Half E AIMnamr Body L Shaft F Spacer M Screw G Smmr Coil Assmnbly N Wirs L ad with Connewt INSTALLATION 1 Install alternator on me engine and tighten cap screw B instantly 2 Pry alternator D far from engine to gi...

Page 203: ...le If voltage is higher than 15 volts voltage regulator is defective and must be replaced If voltage is lower than 13 volts charge battery and repeat test If voltage stays low either alternator or voltage regulator is defective 3 Check regulator for continuity for each terminal and confirm continuity as shown in the following chart Terminal A Blue 161 Black ICI Blue ID G r m IEI Yellow FI Red 2 2 ...

Page 204: ...ness connector 0 and terminal wire C and ground wire 4 Support alternator and remove two mounting bolts Al and adjusting screw IF Lift off alternator and belt guard El A Mounting BolO D Belt Cover B Ha Connestor E 8alt Guard C Terminal W i n F Adjusting Suaw DISASSEMBLY 1 Removethree thru bolts 2 Usingtwo screwdrivers separate drive end housingfrom stator Do not pry against stator wires 311 SME276...

Page 205: ...e jaws Remove rotor from drive end housing using a plastic hammer 5 Remove rotor shaft rear bearing using a bearing puller A and knife edge puller It is not necessary to remove rear bearing unless it is defective A BaacingPuller B Knih Edpe Puller 6 Remove three screws Remove retainer plate bearing and pack ing retainer from front cover ...

Page 206: ...ate longer than necessary to melt solder as excess heat will damage rectifier assembly 8 Remove nut 6 from A terminal remove rectifier assembly A A Radifier A m b l y B Nut on A Terminal 3351 3 8 9 Remove w o brush cover retaining screws 0 Remove brush holder assembly A h SME27M fll LM YM276 and 2760 Kinornoto Printed inJapan ...

Page 207: ...Front Cover J P d i w Retainer K Front Bearing L Bearing RetainingPlate M Rotor Assembly N Rear Bearing 0 Stamr Assembly P Thru Bolts I S e w R Scnu S Brush Covsr T Brush Holder U WTarminal V Stator Housing W Redifmr Assembly X R u r Cover Y strew Z Spaur 3366037 SMEZ76OIIIB W YMZ76 and 2760 Kinornoto Printed in Japan ...

Page 208: ...laced Testing Rotor Rotor Coil Continuiw Test Touch the probes of an ohmmeter to slip rings t o test rotor coil continuity Reading should be 8 2 9 8 ohms If more than 9 8 ohms check connection between lead wire and slip ring If broken repair and retest If connections and wires are OK rotor is defective and must be replaced If reading is less than 8 2 ohms rotor is shorted and rnust be replaced Rot...

Page 209: ... the side of bush B 2 Check to be sure brushes move freely in brush holder C and brush spring are not broken or collapsed Replace a s necessary A B m h B Wear Limit C Holder InspectingSlip Ring 1 Inspect slip rings Arrow for being dirty rough or out of round 2 If necessary polish the surface of slip rings using No 500 emery paper or 500 gritsilicon carbide paper 3 Measure O D of slip ring O D shou...

Page 210: ...ust be replaced A A Tsrmina1 B I Leadsof Diodes C I Lsadsof Diodes D Tarrninalr Connecting to Stator Coils Short Lead Diodes OPEN Test With positive ohmmeter probe on t positive plate 0 A terminal touch the negative probe to each short lead of three diodes A There should be continuity in each touching If not the diode is OPEN Replace rectifier assembly A Short Leas on I PositivePlant B I PositiveP...

Page 211: ...ve Plate B I P i t i v s Plns C Lone Loads on I Negative PI D I NegativePlRe Long Lead Diodes SHORT Test With I positive ohmmeter probe on negative plate D touch the 1 negative probe t o each long lead of three diodes IC There should no lead of three diodes IC There should n o continuity in each touching If there is continuity the diode is SHORT Replace rectifier assembly A Short Lead on I Positiv...

Page 212: ...cap screws A Screw B Front Cover C Pa ing R a t a i r D Front Bearing E Bearing Retaining Plate 4 Install front cover assembly to rotor assembly A Front Cover B Rotor 5 Install spacer A on rotor shaft and then washer D fan C washer Dl Install pulley half E against washer ID and tighten nut H with washers to 25 to 33 Nm 2 5 to 3 5 kgml 19 to 24 ft lbs A Spacer B Washer C F a n D washer E Pulley Hal...

Page 213: ...tator lead wires Dl to rectifier assembly A If additional solder is needed use ONLY 60 40 rosin core solder A Rectifier Assembly B Stator Housing C Kterminal D Leadsfrom Stator 9 lnstall stator assembly to front cover and tighten three thru bolts 10 Install brush holder A to stator housing so that two brushes are placed on slip rings A B N S noldsr B Stator Housing Be sure not to brake brushes whe...

Page 214: ...l wire C to A terminal and black ground wire to E terminal 3 Install lower shield D with threescrews A Mounting Bolts D Belt Cover B Warnsrr Connector E Belt Guard C Terminal W ire F Adjusting Bolt 4 Attach battery ground cable to negative 1 terminal on batterv 5 Adjust belt to have 10 t o 16 mm 1318 to 518 in deflection when a 89 N 9 kg 20 lbs force is applied midway between alternator and engine...

Page 215: ...ing system diagnosis 1 Remove voltage regulator by removing w o screws Disconnect wiring harness and lift out voltage regulator 2 Install new regulator by reversing the above procedure A Voltage Regulator B Mounting Screws SMEZ7601718 04 VMZ76and 276D Kinomofo Printed in Jamn ...

Page 216: ...ve terminal of ammeter A to the battery positive terminal and negative 1 terminal of ammeter to the starter S terminal 2 Connect battery ground cable to the starter body D 3 Connect positive terminal of voltmeter CI to the starter EI terminal and negative terminal of voltmeter to the starter body or battery ground terminal 4 Preparehandtachometer at the starter shaft 5 Use a screwdriver to jump ac...

Page 217: ...diagnose problem as follows Fails to operate no current draw Open field circuit All field windings Open armature windings Defective brush contact with commutator Open solenoid windings Defective solenoid contacts Failsto operate high current draw Grounded field windings or armature windings Seized bearings Low speed low currentdraw High internal resistance Defective brush contact with commutator L...

Page 218: ...J Drive Pinion K Center Plate L Armature M Saner Frame N Field Coil PolsShoa 0 Pol Sshos RmtainingS m w 4 u s d l P Brush I 2 used Q B r u h 1 I2 used1 R BrushSpring 14usdl S Rear Covar T Bushing U Thrust W rhar 10 2 mml V Thrust Wahsr 1 0 mm W Thnr Bolt12 usedl X scnw 2 usedl Y Smpwr W er Z RubbarWarher SME2160111 304 YM276and 276D Kinornoto Printed in Japan ...

Page 219: ...emove two brush holder retaining cap screws A and two thru bolts 01 from rear cover A Cap S a e u I2 usdl B Thru Bolt I2 u s d l C Rear Corer D Brush Holder 3 Remove field coil assembly A with brush holder C A FieldCoil AsemMy B Armature C Brush Holder 0 Fmnt Carer S M E 2 7 6 O l l J Kinornoto Printed m a n YM276 and 2760 ...

Page 220: ...g armature Al with pinion El from front cover F A A r M N r e B Plate C Shiit Laver D OverturningClutch E Pinion Gear F Frontcover 6 Set all disassembledparts on aclean table A FmntCover B Pinion Gmr C Shift Lever D Armaura E Solenoid Aasmbly F Field Coil Aasmbly G Brnh 5 H Thm Bolk I Rear Covar J Washan K RubbrWahsr L Snap Ring ...

Page 221: ...t at all On no load test motor has low armature speed and high current or fails to operate and has high current draw Use an ohmmeter or test lam0 to test for continuitv between commutator bars and armature shaft If test show continuity a winding is grounded If fault cannot be corrected replace armature All armature winding are connected in series so you don t need to check more than one commutator...

Page 222: ...es possibility of grounding short circuited or open circuited windings check armature for these defects Windings are large and defect might be easy to spot Do not cut as shown by C OpeninpCircuited Windings Symptoms Starting motor cranks engine too slowly On no load test motor has low armature speed and high current draw Use an ohmmeter or test light to test armature for an open circuit Touch the ...

Page 223: ...d Using an ohmmeter 0 test light touch one lead to each field coil brush There should be continuity If there is no continuity the field coil is open and field coil assem bly must be replaced SolenoidSwitch Continuity Ten of Shunt Coil Place one test probe on the terminal S of the magnetic switch and the other on the metal section of the magnetic case Check the hold on windings shunt coils for cont...

Page 224: ...ith a spring scale Tension should be about 1600 grams 56 ounces Replace spring if tension is less than 1400 grams 49 ounces or ifspring is distorted A SpringS d e B Brush Spring ASSEMBLY 1 Ensure that the parts indicated are lubricated with Shell Alvania Grease No 2 or the equivalent high melting point grease If specified grease is not available substitute Esso Beacon 325 or Delco Remy Lubricant N...

Page 225: ...e pinion and pinion stopper cannot meet the specifications insert shims A as shown in Fig 0 4 and 0 8 mm 0 016 and 0 031 in thickness are available A Adjusting Shim B Solenoid Assembly Mesh clearance A is the distance between flywheel ring gear and starter pinion in the rest position This clearance should be between 3 mm to 5 mm Adjust with thicker packingunder starter mounting if the measure ment...

Page 226: ...eet from a wall 1 6 Adjust lamp assemblies if necessary Adjusting screws are behind bulbs Ooen hood for access 2 Measure height of lamps above ground and place a strip of maskingtape on wall a t same height 3 Slight across steering wheel and hood ornament to locate tractor centerline Mark this spot and measure out 130 mm 5 in in each direction This locates a spot directly in front of each lamp 4 T...

Page 227: ...NG WARNING LAMPS 1 Remove lens by removingthree screws 2 Remove bulb by pressing down slightly and turning counter clockwise 3 Press new bulb in turning clockwise Replace lens 2 u k INDICATOR CLUSTER LAMPS 1 Remove access panel by removingseven screws A 2 Turn 114 counterclockwise to remove holder with bulb C from lamp cluster B A Instrument Pam1 B Lamp Cluster C Lamp Holder SMEZ76OIlIB 04 I inamo...

Page 228: ...Press new bulb by pressingdown and turningcounterclockwise 3 Press new bulb in turning clockwise and reinstall lens THERMOSTART PLUG A CAUTION When testing thermostart plug wear safety assesand do not get too dose to the burningfuel 1 Remove air cleaner tomanifoldpipe 2 Holding key switch in thermostart position look into manifold After about five seconds the inner coil in the thermostart plug sho...

Page 229: ...PAIR 50 00 SPECIFICATIONS AND SPECIAL TOOLS 05 ENGINE CLUTCH AND LINKAGE 15 SLIDING GEAR TRANSMISSION 20 REAR PTO 30 FINAL DRIVE AND DIFFERENTIAL 40 FRONT WHEEL DRIVE SME27601 04 YM276and276D Kinomom Printld in Japan ...

Page 230: ...hing to ShaftClearance 0 12 0 19 mm 0 005 0 008 in Pedal to Shaft Clearance 0 07 0 17 mm 0 003 0 007 in Release Bearing I D 39 99 40 00 mm 1 574 1 575 in Release Sleeve Bushing O D 40 00 40 02 mm 1 575 1 576 in Release Sleeve Bushings I D 22 40 22 42 mrn 0 882 0 883 in Main Drive Shaft O D at Release Bearing 21 92 22 00 0 863 0 886 in Sleeve Bushings to Shaft Clearance 0 4 0 5 mrn 0 016 0 020 in M...

Page 231: ... Spring Finger Height with new disk 30 32 mm 1 18 1 26in l Clutch Pedal Free Play 15 25 mm 0 59 0 98 in Clutch Pedal Stroke 110 mm 14 33 in CAP SCREW TOROUE SPECIFICATION Clutch Cover to Flywheel 30 Nm 3 kgm 22 ft lbs Clutch Housing to Engine 98 Nm 110 kgm 72ft lbs Clutch Housing to TransmissionCase MI2 137 Nm 14 kgm 101 ft lbs M14 196 Nm 20 kgm 145ft lbs WEAR LIMIT 0 3 mm 10 012 in 0 4 mm 0 016 i...

Page 232: ...147 1bs I Wear Limit 44 0 mm 1 73 in Clutch Disk Separator DRVlRelief Valve Outer I New P a n 3 8mm 0 15 in Wear Limit 3 6 mm 0 142 in 2 6 mm a t 10 2 N 1 04 kg1 0 102 in a t 2 29 lbs New Pan 64 5 65 5 mm 41 5 mm a t 276 N 27 1 kg 2 54 2 57 in 1 63 in at 59 8 1bs I Wear Limit 63 mm 2 46 in Inner New Pan 54 55 mm 38 5 mm at 142 N 14 5 kg 2 13 2 16 1 52 in at 32 lbs Wear Limit 52 mm 2 05 in 2nd Reli...

Page 233: ...0 0 at Cylinder 34 984 34 994 mm 1 377 1 378 in Clutch Shaft I D a t Needle Bearing 24 007 24 020 mm 0 945 0 946 in Axial Play 0 23 0 61 mm 0 8 mm 0 00906 0 0240 in 0 031 in Counter Gear I D a t Front Bearing 62 000 62 030 mm 2 4409 2 4421 in at One way Clutch 44 412 44 438 mm 1 7485 1 7495 in a t Needle Bearing 26 007 26 020 mm 1 0239 1 0244 in Creep Gear 1 0 a t Needle Bearing 25 007 26 020 mm 1...

Page 234: ...rator 0 06 0 12 mm 10 0024 0 0047 in Outer Ring Gear O D 65 94 65 97 mm 2 596 2 597 in Outer Ring Gear Bore of Pump Case 66 00 66 03 mm 2 598 2 600 in Clearance betweenOuter Ring Gear and Pump Case 0 003 0 09 mm 0 0012 0 0035 in Width of Inner Gear 11 995 12 005 mm 10 4722 0 4726 in Width of Outer Gear 11 995 12 005 mm 0 4722 0 4726 in Depth of Pump Case Gear Width 0 05 mm GearWidth O M 2 in Power...

Page 235: ...re DRV Sleeve I D 20 000 20 009 mm 0 7874 0 7878 in DRV Body O D 19 983 19 990 mm 0 7867 0 7870 in Clearance between DRV Sleeve and Body 0 010 0 026 mm 0 0004 0 0010 in DRV Sleeve O D 24 975 24 985 mm 0 9833 0 9837 in DRV Sleeve Bore of Regulator Case 25 00 25 02 mm 0 984 0 985 in Clearance between DRV sleeve and Regulator Case 0 015 0 045 mm 10 0006 0 0018 in MRV Main Relief Valve Sleeve I D 18 5...

Page 236: ... S Shifter Armshaft D D 13 957 14 000 rnm 0 5495 0 5512 in P S Shifter Armshaft Holder Bore 14 016 14 043 mm 0 5518 0 5529 in Armshaft to Holder Clearance 0 016 0 086 mm 0 12 mm 0 0006 0 0034 in 0 005 in Second Relief Valve Pressure 40 KPa 19 6 KPa a t Engine 2600 rpm 0 4 kg cmz 0 2 kg cm2 5 7 PSI 2 84 PSI Main Relief Valve Pressure 1600 KPa 1450 KPa at Engine 2600 rpm 16 0kg cm2 14 5 kg cm21 227 ...

Page 237: ... in Backing Plate Warpage 0 2 mm 0 0079 in Cylinder I D at Clutch Shaft 35 000 35 035 mm 1 3780 1 3793in 1st Clutch Gear Bearing I D 62 000 62 030 mm 2 4409 2 4421 in 2nd Clutch Gear Bearing 1 13 62 000 62 030 mm 2 4409 2 4421 in 3rd Clutch Gear Bearing I D 62 000 62 030 mm 2 4409 2 4421 in Rev Clutch Gear Bearing I D 62 000 62 030 mm 2 4409 2 4421 in Seal Ring Thickness 1 85 2 00 mm 0 073 0 079 i...

Page 238: ... Shaft End Counter Gear 14T to Sliding Gear 41T 0 06 0 18mm 0 3mm 0 0024 0 0071 in 0 012 in 0 05 0 17mm 0 3mm 0 0020 0 0067 in 0 012 in 0 05 0 17mm 0 3rnm 0 0020 0 0067 in 10 012 in 0 08 0 21 m m 0 4mm 0 031 0 0083 in 0 016 in 0 11 0 26mm 0 5mm 0 0043 0 0102 in 0 02 in 0 09 0 24mm 0 5mm 0 0035 0 0094 in 0 02 in 0 12 0 27mm 0 5mm 0 0047 0 0106 in 0 02 in 0 12 0 27mm 0 5mm 0 0047 0 0106 in 0 02 in 0...

Page 239: ...r Bearing 34 992 35 008 mrn 1 3776 1 3783 in O D at Sliding Splined Sleeve 37 934 37 950 mm 1 4935 1 4941 in Sliding Splined Sleeve Hollow Shaft I D 38 000 38 025 mm 1 4961 1 4970 in PTO Shaft to SlidingGear Sleeve IHollow Shaft Clearance Shift Fork End Thickness Fork Groove Width in Sliding Gear Clearance between Fork and Sliding Gear 0 05 0 091 mm 0 0020 0 0036 in 6 7 6 9 mm 0 263 0 272 in 0 2 m...

Page 240: ...n 60 000 60 030mm 2 3622 2 3634in 0 6mm 0 024in 0 5mm 0 02 in 0 2mm 0 08in PTO Front Plate I D at Pinion Shaft Bearing 52 00 52 03mm 2 0472 2 0484 in I D at PTO Shaft Bearing 72 00 72 03mm 2 8346 2 8358in A PTO Rear Cover I D at Pinion Shaft Bearing 62 00 62 03mm 2 441 2 442in I D at PTO Shaft Bearing 72 00 72 03mm 2 835 2 836 in I D at PTO Shaft Oil Seal 60 000 60 M6mm 2 362 2 364in CAP SCREW or ...

Page 241: ... 000 48 039 mrn 1 8898 1 8913 in Differential Side Gear O D 47 959 47 975 mm 1 8881 1 8888 in Bushing to Side Gear Clearance 0 025 0 080 mm 0 001 0 003 in Differential Pinion I D 18 032 18 050 mm 0 7099 0 7106 in Pinion Shaft O D 17 973 17 984 mm 0 7076 0 7080 in Differential Case Pinion Shaft I D 18 000 18 018 mm 0 7087 0 7094 in Clearance between Pinion Shaft and Case Bore 0 016 0 045 mm 0 0006 ...

Page 242: ... in Final Pinion Shah O D at Oil Seal Collar 40 002 40 018 mm 1 5749 1 5755 in Axle Shaft O D at Inner Bearing 49 992 50 008 mm 1 9682 1 9688 in Axle Shaft D D at Outer Bearing 49 992 50 008 mm 1 9682 1 9688 in Axle Shaft D D at Oil Seal 49 97 50 03 mm 1 9673 1 9697 in Bearing Case I D at Axle Shaft Outer Bearing 80 000 80 046 mm 3 1496 3 1514 in Rear Axle Housing I D at Axle Shaft Outer Bearing 8...

Page 243: ...o Rear Axle Housing 60 Nm 6 kgml 42 ft lbs Differential Housing to TransmissionCase 98 Nm 10kgm 72 ft lbs Brake Drum to FinalPinion Shaft Cap Screw 60 Nm 6 kgml 43ft lbs Brake Cover to Rear Axle Housing 60 Nm 6 kgml 43 ft lbsl Axle Housing to Differential Housing 7T 60 Nm 6 kgm 52ft lbs 10 9T With Lock Tite 70 Nm 7 kgm 43 ft lbs Lower Link Bracket to Rear Axle Housing With Lock Titel 60 Nm 6 kgml ...

Page 244: ...rm Shaft Bore of Drive Case 15 016 15 043 mm 0 5912 0 5922 in Clearance between Arm Shaft and Drive Case 0 016 0 113mm 0 00063 0 0044 in Rotational Play of Sliding Gear 0 05 0 15 mm 0 002 0 006 in Front Drive Propeller Shaft Rotational Play 0 1 0 2 mm 0 004 0 008 in ldie Gear Shaft O D at Bearing 19 9935 20 0065 mm 0 7871 0 7877 in Idler Gear I D 47 000 47 025 mm 1 8504 1 8514 in Front Drive PTO S...

Page 245: ... 0 006 in Differential Case O D a t Bearing 45 002 45 018 mm 1 7717 1 7724 in Ring Gear O D a t Bearing 45 002 45 018 mm 1 7717 1 7724 in Differential Drive Pinion Shaft Differential Drive Shaft O D at Bearing 29 987 30 000 mm 1 1015 1 1811 in Differential Drive Shaft O D at Seal Collar 27 979 28 000 mm 1 1015 1 1024in l Drive Shaft Taper Bearing Preload Starting Drag Torque 0 31 1 57 Nm 0 032 0 1...

Page 246: ... 5591 2 5599in Final Bevel Pinion I D 35 009 35 025rnm 1 3783 1 3789in Spindle O D at Steering Arm 23 987 24 000mm 0 9444 0 9449in at Upper Bearing 24 987 25 000mm 10 9837 0 9843in at Oil Seal 24 987 25 000mm 0 9837 0 9843in at Needle Bearing 27 99 28 00mm 1 1020 1 1024in at Final Gear Case 24 987 25 000mrn 0 9837 0 9843in Final Gear Case I D at Oil Seal 145 000 145 063mm 5 709 5 711in at Spindle ...

Page 247: ...kgm 22 ft lbsl Front DrivePinion Shaft Starting Drag Torque 0 31 1 57 Nm 0 032 0 16 kgm 0 23 1 15 ft lbs R H Axle Housing to L H Axle Housing 60 Nm 6 kgm 43 ft lbs Ring Gear to DifferentialCase 34 Nm 3 4 kgm 25 ft lbs Axle Housing to BevelGear Case 60 Nm 1 6 kgm 1 43 ft lbs Spindle to SteeringArm 210 Nm 21 kgm 152 ft lbs Bearing Housing to Final Gear Case 100 Nm 10 kgm 72 ft lbs Steering Arm to Be...

Page 248: ... diaphragm spring fingers Transmission oil in clutch housing Worn or distorted pressure plate Oil leaks from oil seal in the front side of trans mission case Disk facing burn or come off Slipping clutch operation Oily disk facing due to slipping Broken release bearing return spring or unhooked Broken torsion spring on disk Abrupt clutch pedal operation Scored pressureplate or flywheel Worn come of...

Page 249: ...ge 13 ClvtEh Rod L H Smm 14 C l u M D i x 15 Pnnruce Plate Assembly 16 Release Bearing 17 Release BearingSlmve 18 Bushings 19 ReturnSpring 20 Main Drive Shafl Clutch Shaft 2 i Felt SMEZ76011IaJD4 YM276end Z76D Kinomoro Printed in Jam ...

Page 250: ...ing If splined coupler connecting main drive shaft and main shaft remains on main shaft remove it for inspection Coupler may have fallen t o bonom of clutch housing 4 To remove clutch release yoke and linkage drive out spring pins disconnect rod on outside of clutch housing from release shaft and remove release shaft and yoke A Bearing Return Spring B Main Drive Shaft C RelezseBearing D ReleaseBea...

Page 251: ... See Inspection and Repair If the clutch cover assembly is damaged or worn the entire assembly must be replawd 3 Pry pressure plate assembly off arround three spring pins on flywheel by using two screw drivers Use care not to scratch flywheel or pressureplate 4 Use main drive shaft or installation tool not to drop disk which will be loose on flywheel A Praaure Plate Cover B Main Driva Shafi C Clut...

Page 252: ...If clearance between maln drive shah forward diameter and pilot bush ngis 0 3 m m 0 012 in or greater check t o see which partis K excessively worn and replace Refer the follow Ing specifications MAlN DRIVE SHAFT SPECIFICATIONS Item N m Part Wear Limit Main Drive Shaft Spline Backlash C 0 05 to 0 15mm 0 3 mm 10 002 to 0 005 in 0 012 in Main Drive Shaft 0 0 21 92 to 22 00 mrn 21 5 mm 0 863 to 0 866...

Page 253: ...urement taken t o the following specifications Free Length Working Load 107 mrn 4 21 in 135rnmat176N 5 3 in at 39 7 lbr Release Bearing 1 Check bearing A on sleeve B replace entire assembly Clearance should not exceed 0 02 mm 0 001 in 2 If bearing A1appears burned remove using a press or bearing puller and replace A Reloas Bearing B BaaringSlssvs C Main DriveShaft D Oil Bushing E Felt ...

Page 254: ...t and I D of oil bushings t o obtain clearance Compare measurement and replace if needed CLEARANCE SPECIFICATIONS Item Naw Pan Wear Limit Clutch Shaft O D 21 92 to 22 00mm 21 5mm 10 863 ro 0 866 in 10 8465 in Clearance between Burhkng and Clutch Shaft 0 068 ro 0 172mm 0 5 mm 10 003 to 0 006 in 0 020 in 180C721 5 Lubricate felt in release bearing sleeve before installing Clutch Yoke and ReleaseShaf...

Page 255: ...ke shaft 3 Compare measurement taken with the following specifications CLUTCH YOKE SPECIFICATIONS Item New Pan Wear Limit Releare Shaft 0 0 19 95 to 20 00 mm CLUTCH PED4L SPECIFICATIONS 0 785 to 0 787 in Bush 1 0 20 10to20 15mrn 0 791 to 0 793 in Clearancebetween Releare Shaft and Bushing 0 5 mm 0 019 in 0 I Item New Part Wear Limit 2207013 Pedal Bushing I D 25 12 to 25 14 mm 0 989 to 0 990 in Ped...

Page 256: ...mm 10 003 to 0 004 in 10 012 in 3 If bushing 0 is replaced use a pilot bushingpuller D Coat 1 13 of new pilot bushing with a light clean grease Flywheel 1 Inspect flywheel friction drive surface A for distortion and scratches 2 Measure flatness of drive surface using straightedge IC and feeler gauge 0 Replace flywheel if surface A is not flat to within 0 2 rnm 0 008 in 3 Clean any rust or oil fron...

Page 257: ...e on spline shaft using dial indicator CLUTCH DlSK SPECIFICATIONS 1tem New Part Wear Limit Dirk O D 180 mm 17 09 in Disk Tilt at Dirk Edge 5 Use a vernier caliper to measure clutch disk thickness Disk should be replaced if thickness is 6 6 mm 10 260 in or less CLUTCH DlSK SPECIFICATIONS Item New part Wear Limit Facing Thickness One Side1 Facing Thickness BothSides 7 8 to 8 6 rnm 7 2 mm 10 307 100 ...

Page 258: ... using clutch drive shaft a s a pilot for the disk Remove clutch drive shaft Main drive shaft C With cover cap screws torqued to 27 Nm 2 7 kgm 20 rt lbs measure distance bemeen rear of flywheel pilot bushing and rear of diaphragm spring fingers d Subtract the dimension from step a from the dimension measured in step cl e The number calculated in d should be 31 to 33 mm 1 22 to 1 30 in with a new c...

Page 259: ... pilot bushing in flywheel A P m w r Plate Cover B Clutch Shaft IMainDrive Shaft C Clutch Disk D Pilot Bushins 3 Align clutch pressure plate cover two aligning pins A on flywheel and install cap screws B Be sure to install clutch pressure plate assembly at the original position using the mark scratchedwhen removing A Alignins Pin 1 3 usad B Cap Screw 6 uredl 4 Torque cap screws 8 to 27 Nm 2 7 kgm ...

Page 260: ... A Largei Pin B Smaller Pin C Sleeve D Direction of Sleeve Movement 6 lnstall two release springs E in release sleeve 6 and over pins inside clutch housing Open ends of springs should face down 7 lnstall clutch shaft A through clutch housing into splined coupler at front of transmission drive shaft 8 Wipe all excess oil from release bearing sleeve and install clutch shaft A A Clutch Driveshaft 6 R...

Page 261: ...ch pedal at the pedal footrest Free travel should be 15 25 mm 9116 to 1 inch 3 If free travel is excessive turn turnbuckle counterclockwise when viewed from front of tractor If there is too little free play turn turnbuckle clockwise as viewed from front of tractor 4 While holding turnbuckle lock jam nuts Adjust inertia brake release lever C if removed A Turnb dlle B Lock Jam Nut C Inertia Brake Re...

Page 262: ...p C Center Plats D Ragulator Care E 2nd Relief Valve F Main Relief Valve G Delay Relief Valve H Valve Spool I Oil Manifold J Power Shiit Clutch Shaft K Rev 1st Clutch Pack L 2nd 3rdClutch Pack M PowerShift Lever SME27601118304 YMZ76 and 276D Kinornoto Printed in Japan ...

Page 263: ...e shift lever drive case A FrontWheel Drive Powsr Take Off B Front Drive Case c Cap SEWW 14 red 4 Place the transmission and rear axle assemblv on asteadv stand A Rangeshift Lever Arrembl B PowerShiitShiffer Cover C Regulmor Caw 5 Remove range shift lever assembly from transmission case removing transmission upper cover to transmission case retain ing screws 10 used SME2760 718304 YM276 and 276D K...

Page 264: ... C Fork Shaft D Cap Screw 7 Remove forks fork shaft and support assembly 8 Remove eleven cap screws Arrows and remove regulator case 9 Use slinger belts A to lift the transmission case 10 Remove one cap screw A inside the case and six cap screws 8 outside A Slingar Belt B Cap Screw lone1 C CapSsrew 1 6u dl SME276011183M YM276 and 276D ...

Page 265: ...eshaft B idle Gear 4 W D C Snap Rings D Slim Portion 12 Slowly move the transmission case foreward with lifting the rear end of case higher so that the gear D can clear over the range sliding gear A when separating A Sliding Gear 8 Idle Gear 14 W D C Lo Hisliding Gear D Creep Range Gear E Differential Drive Shaft F Main Shaft G Snap Ring 1 2 led1 13 Place the transmission assembly on a steady stan...

Page 266: ...ully pull the manifold not to damage seal rings A on the clutch shaft 6 A Seal Ring 5 used B Clutchshaft Power Shift Pump 3 Remove four cap screws A and one cap screw 0 Do not remove two cap screws C if pump shall not be disassembled A Cap Screw 4 undl B Cap Scrw I1 used C Pumv Cover Retaining Screws Always remove the oil manifoldfirst when removingpump 4 Remove pump and splined coupler 6 A Pump B...

Page 267: ...ower shift pump 0 See page 50 10 5for details A Oil Manifold B Power Shift Pump 2 Remove all seal ring Arrows by using fingers 3 Remove 2nd relief valve to avoid damage during disassembly 4 Remove snap ring A from the rear endof main shaft 0 SME27601116304 YM276and 276D Kinornoto Printed in Japan ...

Page 268: ...sion 50 10 7 5 Removewasher from the main shaft 6 Use a puller to remove main shaft rear bearing 7 Remove spacer A in front of creepgear 0 A Spacer B Creep Gear 8 Use a puller to remove creep gear Kinomoro Printed in Japan ...

Page 269: ...eep ReductionGoan B Crwp Coumer G a r C ThrunWmher Strike counter gear A to loosen it from the main shaft 8 A Counter Gear B Main Shaft C Soft Metal 12 Strike main shaft with a soft metal or copper hammer until center plate A separates from trahsmission case B Give several shocks around the side of center plate to separate smoothly from transmission case A Center Plate B Tcanminion Care SMEZ760 2 ...

Page 270: ...nt Remove counter cluster gear Al from rear of transmission care when the power shift transmission assembly is pulled out about 180 mm 7 in A Counter Cluster Gear B MainShsft 15 Continue pulling out and remove the power shift A and main shaft assembly B from the transmission case A Powsr Shift Assembly B Main Shaft Aaembly 16 Remove oil suction pipe from the transmissioncase SME276011 8304 YM276an...

Page 271: ... Snap Ring r 19 Support center plate a s shown in L H photo and place wood or soft material below the end of clutch shaft to prevent shaft assembly damage when falling it down the clearance between clutch shaft and wood should be the same thickness a s center plate 20 Drive clutch shaft A and main shaft 8 with soft metal C using hammer 21 Driveat alternatelythe two shafts SME27601118304 YM276and 2...

Page 272: ...aminations Center Plate 1 Remove snap rings from the bores of clutch shaft bearing A and main shaft bearing B A Clutch Shaft Bearing B Main Shaft Bearing C Revene IdleGear 2 Remove lock nut A and washer 0 Remove reverse idle gear C and all bearings from the center plate D A Lock Nut B Washer C Reverse Idle Gear D Canter Plate SME27601118304 YM276and 276D Kinornoto Printed in Japan ...

Page 273: ... is damagedor worn 5 Replace boot 0 and O ring C if they show any sign of stress or cracking or if they do not fit snugly over retainer and lever 6 Inspectspring J for damage or wear A Range Shift Lever 8 Rubber Boot C O ring D Plug E Circlip F Lever Ball G Spring Pin H Spring Pin I Shifts Cover J Spring K Warher L E Typesnap Ring M Spring Pin N Fork Shaft Support 0 Detem Ball P Detent Snrina Q C ...

Page 274: ... in Replace when clearance between fork and gear groove is 1 mrn 0 004 in P A 2nd 3rd Shift Fork 6 C 1st Shift Fork 2783627 8 Remove two spring pins A from the fork shafts 8 A Spring Pins B Fork Shafts 9 Remove guide plate A from the fork shaft support B A Guide Plate B Fork Shaft Support 10 Push the shafts using aspring pin driver SME2 60 1 8304 2763633 YM276 and 276D Kbomoto Plinted in Jaosn ...

Page 275: ... Replace parts when clearance between shaft Tand U and forks is 0 12 mm 0 005 in O D of shah is 14 96 14 98 mm 10 5892 to 0 5899 in I D of fork is 15 00 15 04 mm 0 5906 to 0 5922 in A ClnShifter Shaft B 2nd 3rdShiner Shaft 13 Inspect all components of shift fork assembly A C 1st Shift Fork B 2nd 3rd Shin For C C 1st Fork Shaft D 2nd 3rd Fork Shaft E Guide Plate F Fork Shaft Support G Detent Ball H...

Page 276: ...aft B Folk C Detent Ball D Spring Pin Driver 2 Make sure all parts are installed in their correct locations A Gude Plate B 2nd 3rd Shrft Fork C C 1RShlft Fork 3 Install the fork shaft assembly in the transmission case sure the forks and gears are in their neutral positions 4 Tighten two cap ft lbs SME2760 118304 K nomoto Printed in Jwan Make screws Arrows to 25 Nrn 2 5 kgrn 22 YM276 and 2760 ...

Page 277: ... and install retaining circlip D in the groove 3 Install spring J with its larger end facing u p o n the lever 4 Retain the spring with washer K and snap ring L Be sure snap ring is seated properly i n the lever groove 5 Install packing on bonom of lever cover H Be sure t o coat gasket with sealant A Rangeshift Lever B Rubber Boot C O ring D Circlip E Spring Pin F Sprins Pin G Plastic Ball n Shift...

Page 278: ... PowsrShifI Lever E Warher F Bushing 12 used1 G Lever Guide H Clamp I Neutral Lock J Plate K Shim L screw M Cotter Pin N Spring Pin 0 LwerShift Arm P Shifting Rod 0 RodShift Arm R O ring S Shift Fork Shafl T O ring U Holder V Packing W Shifter Cover X Packing Y Fork Shift Arm Z Spring Pin A A Detent Spring BB Detent Ball CC Cotter Pin DD Shift Fork ...

Page 279: ...ershift Arm F Lever Guide 5 Removecover from top of lever guide Not illustrated 6 Remove shift lever hinge pin 6 after loosening set screw C Removespring Dl and cotter pin E from lever shift arm F A Power Shift B Hinge Pin C Pin Set S E W D Spring E Cotter Pin F Lever Shift Arm 7 Drive spring pin A out of lever guide IC and remove washer 81 8 Remove guideto instrument panel retaining nut which loc...

Page 280: ...s less than 12 5 mm 0 492 in Clearance between bushing and shaft should be 0 18 to 0 31 mm 0 007 to 0 012 in Replace parts if clearance exceeds 0 5 mm 0 02 in 12 lnspect spring pin bore of shift arm shaft for wear 13 lnspect spring pin IF washer El spring H and hinge pin J for wear or damage Replace as required 14 lnspect shifting rod connecting bore ID on lever shift arm IC for wear or damage Rep...

Page 281: ... to 12 03mm 0 4725to 0 4735in A Fork B Fork Shaft C Shifmr Cover D Dslent Spring E Ball F s a t Snsw G Fork Shift Arm H Holder I Rod Shift Arm 18 Inspectdetent spring The specifications as follow DETENT SPRING SPECIFICATIONS Frae length Working Load 13 6rnm 10 535in l 9 3rnmat63 4N 10 366 in at 14 0 Ibr 1 19 Inspect fork shift arm end for wear or damage O D of arm end should be 9 964 to 10 000 mm ...

Page 282: ...plate F 3 Install cap screw E t o sleeve IH and pull it out by hand E Cap Screw H Sleeve 4 Pull valve body DRV I out of sleeve HI 5 Remove two springs K L and main relief valve body M from sleeve N H Sleeve I Valve Body IDRV A Plug B Copper Washer C Value Spool D Regulator Caw E Cap Ssreru F End Plam G 0 Ring H Sleeve I Valve IDRV J Slwva K Spring L Spring M Main Relief Valve N Slwue 0 Arm Holder ...

Page 283: ...o 0 7877 in1 DRV body O D 19 983 to 19 99mm 10 7867 to 0 7870 in Clearance between ORV Sleeve and Body 0 010 to 0 026 mm 0 045 mm 10 0004 to 0 0010 in 0 0018 in 5 Measure O D of DRV sleeve and I D of regulator case bore for DRV sleeve Com are measurements taken to the following specifications D R V SPECIFICATION 1tern New Pait Wear Limit DRV S1eeveO D 24 97 to 24 98 mm 10 9833 to 0 9836 in DRV Sle...

Page 284: ... l Main Relief Valve 1 lnspect orifice A for clog If it is clogged wash in clean solvent and blow by pressurized air Coat cleaned part with a thin film of oil when installing A Orifice 6 Main Relief Valve 2 Measure I D and O D of main relief valve sleeve and I D of regulator case bore Not illustrated 3 Measure O D of main relief valve body Compare measurement taken t o the following specifications...

Page 285: ... in 10 0024 in Sleeve O D 24 99 to 25 00 mm 0 9839 to 0 9842 in Sleeve Bare of Regulator Care 25 00 to 25 02mm 10 9842to 0 9850 in Clearancebetween Sleeve and Regulator Care 0 to 0 03 mrn 0 050 mm 10 to 0 0011 in 0 0020 in 4 Check number of shims behind the outer spring When increas ing operating pressure of clutches add shim s A shim 0 5 mm can control the pressure Power Shift Valve Spool 1 Measu...

Page 286: ...e between Spwl 0 025 to 0 045 mm 0 06 mrn and regulator Care 10 0001to 0 0017 in 1 10 0024 in Second Relief Valve 1 Inspect second relief valve body 1 and seat D Replace if their seatingarea were worn or scratched A Cotter Pin B Washer C Spring D Valve Seat E 2nd Rslief Valve 2 Measure spring C dimension and compare measurementtaken to the following specifications SECOND RELIEF VALVE SPRING SPECIF...

Page 287: ...L into the bore of regulator case in reverse sequence when disassembl ing 5 Regulator case assembly and 2nd relief valve must be installed after installing power shift transmission assembly into transmis sion case Use new packing R when installing regulator case onto transmission case A O rine B P i n C Main Relief Valve Spool D Main Relief Valve E Plug F Regulator Care G Springs H HoldBr I Shims ...

Page 288: ...case GI A Clearance beween Inner D Inner Gear Gear and Separator E Separator B Clsarancs between Outer F Oumr Ring Gser Gear and Sspantor G Pump Care C Clearancebstwaan Outer H Feeler Gaupe Gwr and Pumpcare 5 Measure clearance between pump case cover and pump gears using a straightedge and feeler gauge Replace pump assembly if the measurement exceed 0 08 m m 0 003 in A Pump Gears B Straightsdge C ...

Page 289: ...ng Gear Bore ofPump Care New Pan 42 95 to 42 97 mm 11 691 to 1 692 in 42 04 to 43 06 m m 11 694 to 1 6952 in 0 065 ta0 110mm 10 0026ro 0 0043 in 50 60 ro 50 63 mrn 11 969 to 1 993 in 50 51 ro 50 54 mm 11 989 to 1 990 in 0 060m0 120mm 10 0024 to 0 0047 in 65 94 to 65 97 mm 12 596 to 2 597 in 66 00 ro 66 03mm 12 599 to 2 600 in Wear Limit Clearance between Outer 0 030 to 0 0090 mm 0 1 5 mm Ring Gear...

Page 290: ... Assemble t w o gears H I in p u m p case to 6 p p l y a little grease t o oil seal rips 81 A Splined Coupler 6 Oil Seal C Seal Collar D Bearing E Key F Pump Shaft G Pump Cover H Inner Gear Drive Gear I Outer Ring Gear J O Ring K Pump Care L Packing M Bearing 7 Install cover A and tighten t w o cap screws 0 t o 25 N m 2 5 kgm 22 ft lbs 1 8 Use a n e w packing when installing pump t o center plate ...

Page 291: ...CATIONS 1tern New Pan Wear Limit CIurch Shafc Bore 30 15 30 20 rnm 30 6 mrn ll 187 1 189in 11 204 in A Spring Pin I6 mrn B Spring Pin 1 8mml C Cap Screw 0 O ring E Oil ManifoldCover F Spring Pin G Snap Ring H Steel Ball I BrakePirtonSpring J Washer K Release Shaft L lnsnis Brake Piston M O ring N O ring 0 Brake Disk P Oil Manifold 0 Packing 5 Inspect inertia brake disk for wear or damag Thickness ...

Page 292: ...m 26 4 rnrn at 955 N 11 04 in at 215 1br I 11 339 in 1 ASSEMBLY See INSTALLATION on page 50 10 58 CENTER PLATE INSPECTION 1 Wash plate in solvent and remove dirt and broken packing Never use steel packing scraper to remove packing 2 lnspect both surfaces of oil galley plate for distortion and scoring 3 Measure flatness of surface using a straightedgeand feeler gauge n Replace oil galley plate if s...

Page 293: ...der 2 Remove reverse clutch hub with gear B 3 Remove Reverse 1st clutch cylinder assembly C B Reverse Clutch Hub C R 1st ClutchCylindar Do not drive cylinder by steel hammer Do not damage end of clutch shift or seal ring grooves 4 Remove 1st clutch hub ID 5 Removespacer IG and 2nd clutch hub IE 6 Remove 2nd 3rd clutch cylinder assembly F in same manner of step 3 SME2760 11 304 YM276ad2760 Kinomom ...

Page 294: ...ar Bearing 8 Remove rear bearing IBI from the shaft A PowsrShift Clutch Shaft B Key C Snap Ring D ReverseClutch Hub E R lnClutch Cylinder F 1st Clutch Hub G Spaser H 2nd Clutch Hub I 2nd 3rd Clutch Cylinder J 3rd Clutch Hub K Spacer L Rear Bearing SME27601718304 YM276snd 276D Kinommo P r i n t d i n Japan ...

Page 295: ... plates ID A Snap Ring B Cylinder C Clutch Dirks D Clutch Plater E Piston Return Spring F Spring Canpressor Do not lose separator springs IJ and pins I when removing dirks and plates 12 Place the parts disassembled on a table Do not mix Par for each clutch pack to others 13 Repeat the steps from 10 to 13 for disassembling the other clutch packs A Piston G Warher B O Ring H Snap Ring C Clutch D i s...

Page 296: ...ss of clutch plate Replace if thickness is less than 1 4 mrn 0 0552 in and replace if burned or warped more than 0 3 mm 0 018 in 4 Measure thickness of backing plate Replace if thickness is less than 3 30 rnm 0 13 in or if the warpage is 0 35 mm 10 0137 in or more A Backing Plate B Feeler Gauge 5 Inspect separator springs and pin for damage Replace a s required F A separator Spring B Pin SMEZ76011...

Page 297: ...ge and cylinder Replace piston or cylinder whichever wear more if the clearance is more than 0 07 mm 0 0029 in 8 Inspect piston outer edge and inside of piston cylinder for scoring or scuffing Replace cylinder and install new O ring in piston if worn O ring causes to score cylinder A Cylinder E Vernier Caliws 9 Measure 1 0 of cylinder at bottom and top of cylinder 10 Measure O D of piston O ring R...

Page 298: ...late Thicknerr Max Warpage of Clutch Plate Backing Plate Thickness Max Warpageof Backing Plate 47 999 to 48 001 mm 11 8897 to 1 8898 in 0 024 to 0 051 mm 0 066 mm 0 0009 to 0 0020 in 10 0026 in 3 0ro3 2 mm 2 75mm 10 1 18 to 0 126 in 10 108 in 19 6 m m at 654 N 66 7 kg 10 77 in at 147 1br I 44 0 mm 1 73 in 2 5 to 2 7 mm 2 2 mm 0 098 to 0 106 in 0 0866 in 0 2mm 0 3mm 10 008 in IO Dl2 in 1 5510 1 65m...

Page 299: ...or damage Replace if required CLUTCH SHAFT SPECIFICATIONS Item New Part Wear Limii Clutch Shaft O D 34 984 to 34 994 mm at Rear Bearing H 377 to 1 378 in Clutch Shaft O D 34 984 ro 34 994 rnm at Cylinder H 377 to 1 378 in Clutch Shaft O D 29 925 to 29 95 mm ar Oil Manifold 11 178to 1 179 in Clutch Shaft O D 16 994 to 17 006 mm at Front Bearing 0 6691 to 0 6695 in Seal Ring Thickness 1 85 to 2 00 m...

Page 300: ...linder B O ring C Piston D Piston Return Spring E Warher F Snap Ring G Clutch Plate 3 undl H Clutch Disk 4 usadl I Separator Spring Pin J Separator Spring K BackingPlate L Snap Ring 3 Install piston return spring 6 on piston C using compressor DI Install snap ring A A Snap Ring B Spring C Pinon D Comprenor Snap ring has sharp edge on one side of face because of i t s shearing process Install snap ...

Page 301: ...lutch Plats 7 Place clutch disk A on clutch plate 0 and put another plate on six separator springs 13 a s aligning bores for separator spring pins A Cluwh Dirk Clutch Plate C Clutch Plate D Separator Springs 8 Insert separator spring pins A through clutch plate B spring C and clutch plate D sitting on piston A Pin B Clutch Plate C Spring 0 Clutch Plate SME2760lIJsJD4 YM276and276D Kinamoro Printed ...

Page 302: ... B A BackingPlate B Snap Ring 11 Be sure snap ring is installed as instructed in R H figure A Snap Ring B Cylinder C Washer D Piston Return Spring E Pbton 12 Rear steps from 5 to 10for other side of cylinder Make fure which side of cylinder is 2nd or 3rd clutch When installing the clutch pack assembly align oil passage holes between shaft and clutch cylinder See page 50 10 44 for installation 13 A...

Page 303: ... J 2nd3rd Clutch Cylinder K Snap Ring L Piston Spring 4 usdl M Clutch Disks 12 dl N Snap Ring 14usedl 0 Stwl Plate 2 usedl P Backing Plats n 0 3rd Clutch Pinon R Piton O ringI4 usd S 2nd Clutch GearIHub T 1stClutch GsarlHub U R 1nClutch Cylinder V 1 clutch Pack W ReverseClutch P e k X 2nd Clutch Pwk Y ReverseGsarIHub Z Seal G oovss AA Snap Ring BB Snap Ring OC Bearing6202 SME27601118304 YM276and 2...

Page 304: ... Cylinder J 3rd Clutch Hub K Spacar L Rear Bearing 1 Install clutch shaft rear bearing E against spiral bevel pinion shoulder Use bearing driver 35 mrn to install bearing A Driver I35 mml 6 Bearing C Clutd Shsn 2 Install spacer over the rear bearing 3 Install one 3rd clutch hub bearing against the spacer installed at step 2 SME276011 8304 YM276 and 276D Kinomofo Primed in Jam ...

Page 305: ...180 from key groove of shaft are for lubricating oil Oil Holes 2 3 clutch Pack from View of Seal Case Side R H PHOTO Oil hole near 90 from key groove A is connected to to 3rd piston Oil hole far 135 from key groove is connected to 2nd piston Make sure correct direction of cylinder before installing A T o 2nd Clutch C LubricatingOil Hole B T o 3rd Clutch D Key Groove 5 Install key A to clutch shaft...

Page 306: ...utch Hub B Clutch Dirk 7 Install 2nd clutch hub on clutch disk and rotate the disk slightly to mesh in teeth Repeat same manner until three disks mesh on clutch disk hub splines A 2nd Clutch Hub B 2nd 3rd Clutch h 8 Install spacer against 2nd clutch hub bearing 9 Install 1st clutch hub onto the spacer installed at Step 8 i 10 Install key in clutch shaft A In Clutch Hub B Key SME27601216705 2762G23...

Page 307: ...onto the R 1st clutch cylinder and then place spacer B on the bearing A Bearing 16007 B Spacer 13 Install 1st clutch hub A clutch disk and rotate the disk slightly to mesh inteeth Use needles or small screw driversto rotate disks A 1s Clutch Hub B Screw Drivers 14 lnstall bearing 161337 A into the reverse clutch hub B 15 lnstall snap ring C to the clutch shaft Dl A Bsaring 16007 B Raverr ClutchHub...

Page 308: ...pect four gears on spline shaft for wear or damage 2 Inspect backlash between spline shaft A and gears The backlash should be within 0 05 to 0 17 mm 0 0024 to 0 0067 in Replace parts if backlash is more than 0 3 mm 10 012 in 3 Inspect installation condition of snap rings Fl Replace snap ring if weaken or deformed 4 Assemble a s shown in photo 5 See specifications for shaft dimension ...

Page 309: ... 3 inspect needle bearing bores of counter cluster gear E and 1st range gear D for wear or damage I D of bore should be 26 007 to 26 020 mm 1 0239 to 1 0244 in Replace clearance between counter gear and needle bearing exceeds 0 1 mm 0 004 in ONE WAY CLUTCH iNSPECTlON A N D REPAIR 1 Removesnap ring C trom counter cluster gear A 2 Remove cam clutch assembly 0 A Counter Cluasr Gsar B Cam Clutch Arram...

Page 310: ...wear or damage Replace a s necessary 2 lnspect idle shaft O ring A for damage 3 lnspect idle shaft B O D of shaft should be 21 982 to 22 000 mm 0 8654 to 0 8661 in Clearance between sleeve and needle bearing should he 0 009 to 0 038 mm 0 003 to 0 0015 in Replace parts if clearance exceeds 0 1 mm 0 004 in 4 Inspect idle gear bore for wear I D of bore should be 125 993 to 26 020 mm 1 0233 to 1 0244 ...

Page 311: ...le Bearing C Differential Drive Shaft D FrontWhsel Drive Gear E C 1st Rangesliding Gear F Snap Ring 12 used 2 Remove snap ring G to remove front wheel drive gear Dl Remove front wheel drive geag from differential drive shaft 4 Remove snap ring behindsthe front wheel drive gear SME27601118304 YM276 and 276D Kinornoto Printed in Japan ...

Page 312: ...Arrows after flattening lock plate Be careful not t o damage cone point adjusting shims when removing shaft 7 See Section 30 of this chapter for differential drive shaft re moval and adjustment 8 Remove snap ring A spacer 0 and needle bearing C if necessary A Snap Ring B Spacer C Needle Bearing SME27601118304 YMZ76and 276D Kinornoto Primed in Japan ...

Page 313: ... Replace parts if clearance t o needle bearing exceeds 0 1 mm 0 004in 3 lnspect teeth of all sliding gears for wear or damage Backlash should be 0 12 t o 0 26 m m 0 0047 t o 0 0102 in Replace ifit exceeds 0 5 mm 0 02 in A C ln Ranpe Sliding Gear B Front Wheel Drive Gear C 2nd 3rd Range Sliding Gaat 4 Inspect 3rd range dog clutch internal craw for wear or damage Replace as necessary A 2nd 3rd Range...

Page 314: ... thrust washe C into the recess Make sure the grooved side must face idle gear Tighten lock nut D to 100 Nm 10 kgm 72 ft lbs A Reverse Idle Gear Shaft B O ring C Thrust Wsrhsr D L k Nut E Warher 4 lnstall clutch shaft and main shaft assembliesto center plate Drive two shaft ends alternately with soft metal 5 Install snap ring A to main shaft 6 and clutch shaft Dl snap ring C to A Snap Ring B Main ...

Page 315: ... A are insert power shift assembly into transmission case as shown in L H photo A Packing B Power Shift Tramminion Asambly 4 Before installing assembly completely insert counter cluster gear A from rear side of transmission case so that the gear would be installedon main shaft 8 A Counter Cluster Gear B Main Shsft SME27601118304 YM276and Z76D Kinomoca Printed in pan ...

Page 316: ...Move pipe using screw driver to align pipe to the bore Push center plate assembly into case A Center Plate B Oil Suction Pipe 7 Install 2nd relief valve assembly into the bore on top surface of transmission case Range Shift Gears 1 Install counter gear needle bearing A into cluster gear 0 rear end Install thrust washer C against the rear end of cluster gear A NaedleBearing B Cluster Gear C Thrust ...

Page 317: ...t the 8 Install creep range gear A onto the main shah gear set CI at the same time thrust washer and A Creep Range Gear B Milain Shaft C Crew Gear Set 4 lnstall spacer A against the bearing 8 A Spassr B Bearing6022 5 Install main shaft rear bearing A to main shaft using tube driver B ...

Page 318: ...ft Transmission 50 10 57 Drive creep gear set to fit firmly in the transmission case Install washer A and snap ring 0 to the main shaft A Warher B Snap Ring SME276017l Cd YM276and 2760 Kiiomofo Printed in Japan ...

Page 319: ...age rings during manifold installation 2 Install power shift pump A with new packing B A Power Shift Pump B Packing 3 Tighten five cap screws to 25 Nm 2 5 kgm 22 ft lbs torque 4 Install oil manifold A with new packing C to center plate 6 A Oil Manifold Seal Carel B Center Plate C Packing I SMEZ760 118304 YM276 and 2760 K nomato Primed in Japan ...

Page 320: ...ess brake piston A with two O rings B into the bore of oil manifold A Brake Pinon B O rings 2 7 6 3 1 a 8 Install oil manifold cover 0 with spring C and release rod B Use new packing A Tighten cap screws E to 25 Nm 2 5 kgm 22 ft lbs torque A Packing B Release Rod C Spring D Oil Manifold Cover E Cap Screw YM276and 276D SME276OllJgl04 Kinamoto Printed h Japan ...

Page 321: ...smission INSTALLATION Regulator Case 1 Install regulator case assembly to transmission case Tighten cap screws to 25 Nm 2 5 kgml 22 ft lbsl torque Use real washer Bl for long cap screw A located a t the center of case ...

Page 322: ...plina Collar C PTO PinionGear 540mrnl D PTO PinionGsar 10Wrpml E Oneway Clutches F Sprinp G PTO Slidiw Gear H PTO Gaar I Oil Seal J PTO Shaft K PTO Safety Guard L PTO Connectiw Shaft SME2760111 4304 YM276 and 276D Kindmaro Printed in Japsn ...

Page 323: ...rews 0 and upper link hinge assembly C A D M t Control Feedback Rod B Cap Screws C Upper Link Hinge 4 Remove PTO safety guard A and PTO shield B 5 Remove three cap screws Cl and four nuts Dl A PTO Safety Guard 6 PTO Shield C cap scr ll 0 Nu5 6 Pull PTO assembly out Do not need to remove fender as servicing PTO assembly ...

Page 324: ... ft fork 3 Remove PTO shaft assembly by tapping shaft end with plastic hammer Remove PTO pinion shaft assembly at the same time a 4 Removefront bearing A on PTO shaft 0 5 Remove one way clutch front claw C and thrust washer ID A Front Bearing B PTO Shaft C One way Clutch FrontClaw D ThrurtWnrher r A2 j z SMEZlbO1118304 YMZ76 and 2760 Kfnomoto Pnnred m Japan ...

Page 325: ...way Clutch R e u Clsu C Spring D Spline Collar E T h N n Washer F Oneway Clutch Front C l m c 0 7 Remove snap rlng A seal wllar 8 PTO gear C spacers 0 I I 1 bearings IE and thrust washer IF A S n g R i m B Sad Collar C PTO Gasr 0 space13 E Bearings F ThNRWaSheII 8 Remove nuts A spring washers 8 washers IC O rings 0 and supporting shafts E A Nu B Spring Washers C w Shers D O rings E SuppoRineShatn ...

Page 326: ...e between Fork and Sliding Gear Groove 0 2 to 0 6 mm 1 0 mm 10 008 10 0 024 in 10 040 in 5 Measure shift fork groove width and shift arm end thickness ltm New Pzrt Wear Limit Shift Fork Groove Width 9 9 to 10 1 rnm 0 390 to 0 398 in Shift Arm EndThicknerr 9 50 ra 9 52mrn 0 374 to 0 375in l Clearance between Shift Fork Groove andshift Arm 0 38 to 0 6 mm 1 mm 10 01 5 to 0 024 in 10 040 in 6 Measure ...

Page 327: ...in Working ength 20 0 mm at 67 N 0 787 in at 15 Its1 9 Measure O D of PTO shaft and I D of spline collar Item New Part A 0 0 a t Oil Seal Collar 34 992 to 35 038 rnm 1 3776 to 1 3783 in 1 8 O D at Spline Collar 37 934 to 37 950rnm 1 4935to 1 4941 in C O D at Spline Collar 37 934 to 37 950 rnm 11 4935to 1 4941 in D Spline Collar I D 38 WO to 38 025mm 11 4960to 1 4970in 10 lnspect detent spring Item...

Page 328: ...follow 1 Install thrust washer A as oil groove on washer facing t o tractor forward 2 When installing seal collar A apply grease and d o not damage 3 Install thrust washer as oil groove o n washer facing t o tractor rearward 2763227 4 Before installing oil seal with seal driver apply grease and do not damage ...

Page 329: ...r retainingcap crews and nutsto differential case INSTALLATION Continued 5 Install PTOshift lock collar A as shown figure Torque 100 Nm 10 kgml 72 ft lbs 8 Replace gasket and tighten upper link hinge retainingcap screws to hydraulic cylinder case Torque 147 Nm 115 kgml 108ftibr SMEZ76Oll183M YMZ76and 2760 Kinomoro Printed in Japan ...

Page 330: ...h B Differential RingGear C Differential Assembly D FindPinionShah E Brake Aeambly F FinslGear G Rear Axla Shah H Differatial Lack Shah I Diff tial Fork J RaturnSpriw K Diffenntid Lock Pedal L diffimtisl Lock Slider SME27SOf118304 YM276 and 2760 Kinomom Printed in bnan ...

Page 331: ...tial housing and remove bearing retainer 2 Pull differential drive shaft from differential housing 3 Remove snap ring A spacer 0 and needle bearing C from differential drive shaft D A S n i p Ring B s p p r C N d l e Bearing D Differmarial Driva Shrh 4 Remove snap ring A spacer 6 and bearings C from differ ential drive shaft ...

Page 332: ... 2 Inspect bearings for wear or damage and replace if necessary A Differential Drive Shaft B Bearin C Spacer D S n g Ring E N d l s Bearing F S p m r G Snap Ring 3 Inspect differential drive shaft surface at needle bearingfor scoring or wear and measure O D Item O D at Needle Bearing SME276011 8304 YMZ76 and 276D Kinornoto Prinw in Japan ...

Page 333: ... may jump out at removing differential lock shaft 3 Remove differential lock slider fork and spring 4 Remove brake cover 5 Flatten lock washer and remove cap screw plate washer and brake drum 6 Remove snap ring A on rear axle shaft t o be free final gear 0 from shaft 7 Remove final gear 8 Remove eight cap screws and four nuts C 9 Remove rear axle housing D A Snap Ring B FinalGaar C Nut I4 usdl D R...

Page 334: ...ly A by using two jack screws 6 12 Remove shims between differential carrier and differential housing A Differential Carrier B J Screws 0 13 Take out differential assembly 14 Remove bearing Al with knifeedge puller B A Bearing B Knife Edge Puller A SME276D1118304 VM276 and 276D Kfnomoro Pnnred m Japan ...

Page 335: ...he differential ring gear is not t o be replaced mark the ring gear and differential ease so they will be reassembled in the same position 17 Drive spring pin from differential case and pinion shaft by using a spring pin punch 18 Remove differential pinions A side gears 61 thrust washers Cl and pinion shaft Dl A Diffnnntial Pinions B Dimmtial SideGaan C ThwRWarhen D PinionSh E Spring Pin F Diffar ...

Page 336: ... wear chips scoring and cracks Measure bushing I D ltam Bushing I D Specification I f differential ring gear is replaced differential drive shaft must also be replaced since they are a matcheds e t 4 lnspect differential pinions and side gears for uneven wear chips scoring and cracks Measure pinions I D and side gears O D at bushingsurface ltam Spacification Pinion 1 0 18 032 to 18 050 mrn 10 7099...

Page 337: ...ing Pin I Differential LakSlider 7 InsDect differential lock fork Wear Limit ltem Specification I D ofFork 20 040 to 20 073 mm 0 7890 to 0 7903 in Thickness of Fork End 7 8 to 80mrn 0 307 to 0 315 in Width of Fork Groove 8 1 to 8 3 mm in Diff Lock Slider 0 318 to0 327in Clearance beween r k 0 1 to 0 5 mm 1 O rnm and Slider 0 003 to 0 020 in 0 040 in 8 Inspect differential lock claws on differentia...

Page 338: ... damage and measure shaft O D and differential housing I D Specification B 11 Inspect differential fork spring Itern Free Length Working Load 115 mm 4 528 in 79 rnm at 489 N 3 11 in at 110 lbr SME276Of118304 YM276and276D Kinornoto Prinred in Japan ...

Page 339: ...ferential carrier 01 A Baaring 8 Differential Carrier 3 Remove differential lock slider A Left side only1 4 Drive two spring pins from differential carrier 5 Drive final reduction pinion shaft assembly from differential carrier by using plastic hammer sME27601118304 YMZ76and Z76D Kinornoto Printed in Japan ...

Page 340: ...eduction pinion gear and spline for damage Measure 0 D at seal collar Item Spacification 0 0 lat Oil Seal Collarl 40 002 to 40 018 rnrn 11 5749 to 1 5755 in 2 Inspect bearings IA for wear or damage 3 Inspect differential carrier case 6 1for crack or damage 4 lnspect oil seal C and oil seal collar ID for damage Inspect the oil leakage into brake chamber El of rear axle housing A Bearings q Differen...

Page 341: ...he rear axle shaft end with plastic hammer and remove rear axle shaft assembly 3 Remove inner bearing by using knife edge puller 4 Remove oil seal case with outer bearing and oil seal as shown 5 Remove bearing and oil seal from oil seal case SME27601118304 YM276 and 2760 Kmomoro Printed m Japan ...

Page 342: ...damage 3 Inspect axle shafts and its spline for wear or damage 4 Measure O D as shown Itern Specification A 0 13 at inner searing 49 992 to 50 W8 mrn 11 9682to 1 9688in El O D at Outer wing 49 992 t o 50 W8 mrn 11 9682 to 1 9688in i C O D at Oil seal collar 49 97 to 50 03 mm 11 9673 to 1 9697 in SME27601118304 YM276 and 276D Kinornoto Printed in Japan ...

Page 343: ...i n the shaft with the spring pin hole in differential case v l n s e l l the spring pin as the split in the pin facing 90 from the shaft center line 5 Check if the differential assembly turn freely in the case 6 Install differential ring gear so ring gear holesalign with hwsing holes If the original ring gear is reinstalled be sure the marks on the ring gear and housing are in ihe same position a...

Page 344: ...r case by using correct tubing oil seal driver 7 Grease O ring and install onto the differential carrier case 3 1 n b 3 p l d 8 lnstall differential lock slider A Leftlide only Be sure the over all length of left side differential carrier is longer than right one Be careful the direction of differential lock claws on slider should be f k i n g as shown A 9 Install bearing B A Differential Lor Slid...

Page 345: ...g retainer A Tighten them to 30 Nm 3 and five cap suews B kgm 22 ft lbs A Bearing Retainer B Cap Screw I 5 usdl 7 Put the differential assembly into differential housing While holding it install rightside differential carrier assembly 8 Ifthe differential ring gear was not replaced install the differen tial carrier with the same number of shims as were removed See the page 50 30 17 19 when ring ge...

Page 346: ...rential drive shaft rear bearing bore in differential housing If differential ring gear is replaced differential drive shaft must also be replaced since they are a matched set 1 Install right hand differential carrier without shim Tghten five cap screws and two nuts 2 Place differential bearing into right hand differential carrier Then strike inner race of ring gear bearing with soft slug or drive...

Page 347: ...and 0 5 m m 10 20 in 7 Install dial indicator Be sure base o f indicator is firmly attached Point of indicator should be toward outer part o f ring p a r tooth and as close as to perpendicular t o the tooth as possible 8 Adjust position of L R differential carrier and differential assembly t o get backlash being 0 13 to 0 18 mm 0 005 t o 0 007 in 9 Measure clearance between differential housing an...

Page 348: ...lbs and measure backlash again Repeat the preceding procedures until gening the correct backlash 16 If the backlash is less than 0 13 mm 0 005 in remove the proper rightside shim s and add it to left hand shims 17 Retighten cap screws and nuts to 30 Nm 3kgm 22 ft lbs and measure backlash again 18 Repeat the preceding procedures until getting the correct backlash ...

Page 349: ...all onto rear axle shaft B 3 Install bearing retainer C with oil seal D 4 Install outer bearing E onto rear axle shaft 5 Replace gasket F 6 Install rear axle housing G A Seal Collar E Outer Bearing B Axleshaft F Garkat C Bearing Retainer G Rear Axle Housing D Oil Seal H Cap scnrvs 7 Tighten cap screws t o 60 N m 1 6 kgm 43 ft lbs 8 Install inner bearing ...

Page 350: ...ue MlO x 58 1109T 70 Nm 1 7 kgml 1 5 2 fr lbrl All Other Nuts and Capscrews 60 Nm 1 6 kgm I 4 3 ft lbrl Apply Loctite for MI0 x 58 10 9Tl cap screws A 13 Install snap ring onto rear axle shaft 14 Install brake drum washer lock washer and cap screw 15 Tighten cap screw to 60 Nm 6 kgml 43 ft lbsl 16 Bendthe lock washer 17 Replace gasket and install brake cover and cap screws 1 18 Tighten cap screwst...

Page 351: ...t out A Spacer 8 Fork C COmpr r Nut 4 lnstall washer A against spring pin 0 and install Oring IC in shaft DL A Wahar 8 Spring Pin C Oring D Shaft 5 Give it side force to align differential lock fork and bore of dif ferential lock shaft so that spring pins can be installedby using pry bar 6 Drive double spring pin into differential lock pedal shaft Springpin consistof two pins one inside the oiber ...

Page 352: ...erntial DrivaShdt D Front Axle Shaft E Drive Shaft Bevel Pinion F Spindle G Cantar Pin H Bevel Gear Cam I Final GearCas J From Drive S h i i Lever K Find Gear L W h a l Hub M From whwl SME276017183M yM276 and 276D Kinomoro Prinred in Japan ...

Page 353: ...se and related parts Bearing housing and related parts 2 Repairtmaintenance work o n front differential remove whole front axle from bracket as described on 80 058 3 Drain gear oil by removing drain plugs one is bottom of dit ferential case and other two are at bottom of bath final gear cases A Drain Plug B Drain Plug 2 usdl C Front Axla h SME2760b01118304 2 7 6 snd 2760 Kinomoro Printed in Japan ...

Page 354: ...steeringarm A Cap Scr 1 4 4 B CapSerws I6 umdl C Bearing Housino w D Final G M Care 2261919 2 Pull final gear case A down with supporting the bottom of housing by hand or jack to avoiddropping on a floor or foot A Final Gasr Csle 3 Remove 6 cap screws to remove bearlnghous ng from flnal gear h v case 4 Repeat same procedureto the other bearing houslng 5 Flatten ear of lock washer A and remove nut ...

Page 355: ...ring C Shim D Collar 9 Removenut ID and put out steering arm El 10 Remove cap screws A which connects bevel gear case 16 and axle housing CI A Cap Screws I8 used 8 Bevel Gear Coe C Axle Housing D Nut E SteerinsA m 11 Separate bevel gear case assembly A from axle housing 6 and set the bevel gear assemblyonclean table 12 Removekey CI A Bevel GearCOB B Axle Housing C Kay ...

Page 356: ...J N d h Beariwr D SpMh K BWII Gesr E Spacer L Snsp Ring F Snap Ring M Baaring6031 G Waher N Snap Ring 0 Baaring 6205 P 0ilSasl Q Key R Warher S Nut T DriveShafl Bevel P i n i n U Snap Ringr V Bearing 6207 W FmntAxleShsft X Shim Y Snap Ring Z O ring SME2760111W04 YM276 and 276D Ki 0rn0l0 Piinfed J a n ...

Page 357: ...ng B Fr o n t x l e slun C Shim D Drive Shan Bevel Pinion E Bearing 14 Remove spacer which is left in final gear case 15 Remove snap ring A and strike spindle head b y using plastic hammer A Snap Ring b a 16 Remove final bevel pinion and bevel year with bearing unit from spindle by using knife edge puller SME27601118304 YM276and 2760 Kinomora Printed in pen ...

Page 358: ...197 in 10 185 in 4 Remove snap ring and washer t o remove needle bearings and collar o n spindle 5 lnspect spindle shaft especially needle bearing surface for wear or scoring Item New Part 0 D at Needle Bearing 27 99 to 28 00 rnm 11 1020 to 1 1024 in 6 Inspect key for wear or damage Width Key Way 7 0010 7 02 mrn 10 275 to 0 276 in 7 Assembly key arm and spindle and check if there was play o r not ...

Page 359: ...ed 3 Be sure seal is flush top of bevel gear case and grease enough A Oil Seal El BwslGear Case 4 Install hearing 8 o n drive shaft bevel pinion A and onto I front axle shaft Dl Install snap rings C A Drive Shaft Bsvel Pinion B Bearing C Snap R i w D FmmAxle Shdt 5 Install assembled bevel gear with bearing into bevel gear case and install snap ring n SME2760lllWcX YMZ76 and 2760 Kinomoro PIinred i...

Page 360: ... lnstall assembled spindle shaft t o bevel gear case and install kev onto s indle shaft 9 Install bevel gear case component t o front axle housing Be sure front axle shaft end enter into differential side gear spline Be careful not giving damage to O ring 10 Apply Loctite t o newcleaned cap screws and tighten them Itam Specifration Torque 60 Nm 1 6 kgrnl 143 ft lb 11 Install spacer t o spindle ...

Page 361: ... assembly Then install shims I and final gear assembly 18 Install lock washer M and tighten nut N to 186 Nm 19 kgml 137 ft lbsl n 19 Bend lock washer A Wheel HubShaft B O ring C Collar D Oil Seal E Snap Ring F Beating G Bearintg Housing H Collar I Shims J Snap Ring K Bearing L Final Bevel Gear M Lock Warher N Nu1 20 Install bearing housing Torque Bearing housingto steeringarm1 60 Nm 6 kgm 43 ft lb...

Page 362: ...asure backlash between drive shaft bevel pinion and bevel gear Item Specification Backlarh 0 10to0 15mm 10 004 to 0 006 in Adjust the backlashwith shimls if necessary Three different thickness of shim are available Thickness 0 1 mm 0 004 in 0 3 mm 0 012 in 0 5 mm 0 020 in A Shim14 B FrontAxle Shaft C Snap Ring D Spindla E Final Bevel Pinion F Bevel Gear G Bavel Pinion SME27601718304 YM27S and Z7SD...

Page 363: ...sure backlash between final bevel pinion and ring gear as shown lfan Specification Backlash 0 10 to 0 15 IO 004 ro 0 006 in 3 Adjust the backlash with shimb f Two different shims are available Thickness 0 2 rnm 0 008 in 0 3 m m 0 012 in A Shirnlrl B BearingHousing C Wvsl Gear D Final BwelPinion E Final Gear SMEZ7601118304 YM276and 276D Kmamofo Printed in J m n ...

Page 364: ...ove bearing housingto axle housingcap screws Do not lose or damage shim s being between axle housing vand bearinghousing 3 Remove the bearing housing front drive pinion gear compo nent 4 Remove differential from left handfront axle housing 5 Remove racket headcap screws on differential gear case 2261813 SMEZ76Of118304 YMZ76and 276D Kmomoto Printed in Japan ...

Page 365: ...differential housingso they will be reassembled i n the same position 8 Drive spring pin A and pinion shaft IB from differential case by usinga spring pin punch 9 Remove pinion shaft from differential case A Spring Pin B Pinionshaft 10 Removedifferential pinions and thrust washers 11 Remove differential side gears and thrust washers A Ring Gear E Differential Pinions B DifferentialSide Gears F Pin...

Page 366: ...nut B A Cotter Pin B Nut 14 Remove front drive pinion A forward 15 Remove bearing O rings seal collar collar and oil seal from bearing housing A Pinion Shaft 8 O ring C Cotterpin D Nut E Shims F Cd1 r G Oil Seal H Collar I Beating J Shims K O ring L O ring M Bearing Housing SME2760 118304 YM276and 276D Kinamato PIinted in Japan ...

Page 367: ...D o f bushing Bushing I D 32 00 to32 04 m m 11 259to 1 261 in 5 lnspect bevel gears El for wear or damage and measure 0 D of boss Item Spasifbation O D 31 89to31 92mm 11 255to 1 256in 6 lnspect thrust washers D l and pinion thrust washers GI for damage or scoring Measure thickness lfem Specification Wsac Limit Thickness 0 75 to 0 85m m 0 65 mrn 10 029to 0 033 in 0 025in 7 Inspect bevel pinions H f...

Page 368: ...t vThere shims are for adjusting position of pin hole on casde nut andfor adjusting slarting drag torque A Pinionshaft B Bearing Hwring C Shimis 0 ring E Collar F Oil Seal 4 Tighten castle nut and check starting drag torque of pinion shaft as its rear end Item Spscifisation Starting Drag Torque 0 31 to 1 57 Nm 10 032 to 0 16 kgml 0 23 to 1 15 ft lbsl 5 Adjust the starting drag torque with shim to ...

Page 369: ...shaft spring pin Be sure the split in the pin is facing 90 from the shaft centerline 13 Check if the gears and pinions turn freely i n the housing 14 Install differential ring gear A so ring gear holes align with housing holes If the original ring gear is reinstalled be sure the marks on the ring gear and housing are i n the same posi tion as when removed n 15 Use new cap screws I0 and apply Locti...

Page 370: ...ionShaft E Front Axle Hwring BACKLASH ADJUSTMENT 1 Install same number of shims A behind L H differential bearing C and install differential assembly into L H front axle housing 2 Install front differential drive shaft assembly to L H front axle housing Tighten cap screws to 30 Nm 3 kgm 22 ft lbs 3 Drive differential assembly with plastic hammer to left hand axle housing to secure L H bearing is s...

Page 371: ...nt axle housingto left hand front axle Item Spmifieation Torque 60 Nm 6 kgml 43 ft lbrl 3 Install tie rod to steering arm and tighten ihrottles nut for ball joint to 60 Nm 6kgm 44 ft lbs 4 Install front axle assembly to front axle bracket 5 Install center pin and tighten four cap screws to 100 Nrn 110 kgm 72 ft lbs A CapScrews B R H Front Axls Housing C Tie Rod 0 L H Front Axls Hourim SME276017JS3...

Page 372: ... remove front drive gear case only 1 Remove front wheel drive propeller shaft as described on 10 20 2 2 Drain transmission and hydraulic oil from transmission case Remove drain plugs A on front drive case and differential housing 3 Remove four cap screws 81 Remove front drive case assembly Cl A Drain Plug B Cap Screws C Front Drive Care 4 Drive spring pin 3 from shift lever A1and remove shift leve...

Page 373: ...hich are hold ing the shift arm C A Retaining Plate 6 Cap Screw C Shift Arm 6 Remove spring pin A from front drive case A Spring Pin B Front Drive Care 7 Drive idler gear shaft with driver 8 Remove bearings 161 idler gear C and spacer ID A ldlsr Gear Shaft B Bsaringr C ldlsr Gear D Spacer E Spring Pin ...

Page 374: ...drive shaft front end with soft hammer and remove drive shaft with bearingand sliding gear Take out thrust washers collar and front drive gear n 2763517 11 Remove bearing A with puller B then sliding gear C detent balls spring and O ring Dl from front drive shaft A Bearing B Puller C Sliding Gear D O ring 12 Remove shifter block and shift arm from upper window Be careful not giving damage to O rin...

Page 375: ...r 1 0 Item Specification Inner Race0 D 30 003 to30 013 mm 1 181 to 1 182in l Front Drive Gear 1 0 30 040 to 30 061 mm 11 183to 1 184in l Clearance 0 027 to 0 058 mrn 10 001 to 0 0023 in A Front Orive Shaft B Sliding Gear C Inner Race 0 0 6 lnspect fork groove width in slidinggear and clearance between shifter Mock and fork groove with filler gauge Item P a t specification Wear Limit r o o v e widt...

Page 376: ...pect shifter arm shaft for wear 1tern O D of A m Shaft 1 0 of Bore far Arm Shaft Part rp ifisation 14 91 to 15 00 rnm 0 587 to 0 591 in 15 016 ro 15 043 mrn 10 591 to 0 592 in A SME27601718304 YM276and 276D Kinornoto Prinred in Japan ...

Page 377: ... its groove facing t o drive gear A ldler Gear B ldler Gear Bearings C Idler Gear Shaft D Front Drive Gear E Sliding Gear F Front Drive C m G Front Driveshaft H Drive Shaft Bearings I Oil Seal J Seal Cap K Thrust Washers L Oring M Oring N Collar 3 Apply grease t o seal cap and install into front drive case 4 Tighten front drive case t o transmission case cap screws t o 6 0 N m 6kgm 43 ft lbsl 5 In...

Page 378: ...00 SPECIFICATIONS AND SPECIAL TOOLS 05 STEERING 15 BRAKES ...

Page 379: ......

Page 380: ...1248 1 1255 in 28 00 28 02 mm 1 1259 1 1267 in 0 01 0 04 mm 0 5 mm 0 0004 0 0016 in 0 020 in 1 535 mm 0 0604 in 1 565 mm 0 0616 in 1 595 mrn 0 0627 in 1 625 mm 0 0640 in 1 655 mm 0 0651 in 0 025 0 102rnm 0 15mm 0 001 0 004 in 0 006 in CAP SCREWS or NUTI TOROUE SPECIFICATIONS SteeringCover to Gear Box ME 25 Nm 2 5 kgm 20ft lbs itman Arm Nut M20 196 Nm 20 kgm 144 ft lbs dall Joint Throtted Nut M14 1...

Page 381: ...0 mm 0 865 0 866 in Cam Pin Flat EndThickness 11 9 12 1 mm 0 468 0 470 in Brake Cam Shaft Boss I D 22 05 22 15mm 10 868 0 872 in Clearance between CamShaft and Boss 0 02 0 09 mm 0 3 mm 0 01 in 0 0008 0 0035 in BrakeAnchor Pin O D 15 98 16 M mm 0 029 0 630 in Brake PedalShaft O D 24 95 25 00 mm 0 982 0 984 in PedalShaft Bushing I D 25 05 25 07 mm 0 986 0 987 in Clearance between Pedal Shaft and Bus...

Page 382: ...03 CAP SCREWS TORQUE SPECIFICATIONS Brake Drum toshaft 25 Nm 2 5 kgm 20ft lbs ParkingBrakeLever to ClutchHousing 50 Nm 5kgm 40ft lbs Brake Cover to Brake housing 25 Nm 2 5 kgml 20 ft lbs SMEZ7601718304 VM276and 276D Kinornoto Prinl 4 Jam ...

Page 383: ...60004 Spffifications and SpecialTools SPECIAL TOOLS Steering Wheel Puller TOL 93110000 Removingsteering wheel Pitman Arm Puller TOL 93120000 Removingpitman arm ...

Page 384: ... box r Loosen steering wheel retaining nut High Vibration of Steering wheel or column Loosen gear box mounting cap screws Engine malfunctions Oil leakage from gear box Damaged sector shaft oil seal Left side Damaged or broken cover packing Right side Damaged or broken column O ring Upper side Steeringwheel can be rotate without dead end stop Worn steering wheel seration Broken ball nut Broken ball...

Page 385: ... 10 Adjutiw Shim 11 nom switsh L d 12 6 1 1 nut and Shaft 13 Ball B u m 2 Uadl 14 Covrr 15 C pknw 2UlbdI 16 Lock Nut 17 Adjusting S W h i m I S Adjusting k n w 19 o r Shdt m p c i 21 c gSsnw I 4 U d 22 G u r Box 9 Oil Seal 24 Plug 25 P i mAnn 26 Nut 27 Dm Rod SME2760lllBIW VM276and 276D Kimmoto Printed in Japan ...

Page 386: ...hometer drive cable from tachometer 6 Disconnect decompression linkage 7 Disconnect throttle linkage from right handside 8 Disconnect fuel linesfrom tank 9 Remove two screws at front of the panel box and four screwslnuts a t the rear bottom of the panel box to panel box bracket 10 Removepanel box as describedon page 30 10 3 11 Loosen two nuts at the rear end of fuel tank straps and remove two cap ...

Page 387: ...C SteeringGear Box D AdiustinpS 4 Remove pitman arm retainingnut from sector shaft Remove pitman arm usingpitman arm puller A A PitmenArm Pultor B Pimsn Arm 5 If steering column A is to be removed loosen cap screw BI and remove column from gear box C A S H iw Column B Cap Scrms C Gear BOX 6 Removeadjustingscrew C with shim 6 7 Turn steering shaft so that sector shaft gear teeth can be aligned with...

Page 388: ...8 02 mm 1 1259 to 1 1 267 in A BuhinB B Oil Seal 2 If seal is damaged or leaking replace it Coat seal with grease Seal should be flush with end of housing 3 lnspecl upper bearing race B on end of column C Replace them and coat with grease if it was damaged or deformed B Upper Baaring Ram C Stseriw Column 9 4 Inspect bearing race in bottom of gear box Install new race tight in bottom of gear box ...

Page 389: ...aceas required 8 Wash steering shaft 0 and ball nut CI in cleansolvent 9 Carefully turn the ball nut on the shaft feeling for any mugh ness binding or sticking Be sure the ball nut turns smoothly on the worm and is neither loose nor binding 10 Examineworm path for nicks or scratches Shaft and ball nut 8 and C will have to be replacedifdamage is found A Guide with Rnainsr E SminpShafl C Ed1Nut D Up...

Page 390: ...ector shaft A with middle tooth in center of ball nut This i s the straight forward position of the assembly lnstall steering wheel 7 Install adjusting cover by threading adjusting screw through cover Torque cover cap screwsto 25 Nm 2 5 kgm 20 ft lbsl lnstall lock nut on screw A Sector Sha B 0 11 Nut 8 lnstall pitman arm indexing arm to sector shaft Torque nut to 196 Nm 20 kgm 144ft lbs 9 Fill ste...

Page 391: ...gears Turn the adjusting screw in the adjusting cover to obtain 25 40 rnm 0 984 to 1 575 in of free play measured at outer rim of steeringwheel vBy turning the screw to the right the amount of play can be reduced Thestandard positionfor the screw is aquarter turn back when wheel bewmes hardto turn SMEZ7601118104 YM276 and 276D Kinornote Prinmd in Japan ...

Page 392: ...unning Riding brake for long fime Brake shoes slip on drum for leakedoil Scored Brake Drum Abrasive foreign material in housing Braken brake return spring Excessively worn shoes Water or Mad in Brake Housing Broken brake housingcover packing Loosen Brake cover retainging screws Damaged operating Cam shah O ring Broken or removed vent tube extension hose Brake can not be adjusted Worn out shoes Rus...

Page 393: ...3 Brk Pedal L 4 Parking Bn e Lwer 5 Park Swing 6 PedalUMft 7 Key 8 S r 9 Wash 10 E TYWSW Ring 11 G Fining 12 Rmvrn Spring I2 Used 13 Br Rod I2 U d l 14 Cam Lwor 15 Brke Cower 16 Packing 17 RrmmSpin 2 U s d l 18 BrdrmShcm 14 U d 19 Br e Drum ...

Page 394: ...aft and remove shaft to the left through the clutch housing REPAIR AND INSTALLATION 1 lnspect pedal shaft C for wear or damage and replace a s necessary O D a t brake pedal is 24 95 25 00 mm 0 982 to 0 984 in 2 Inspect and assemble clutch pedal as instructed in Chapter 50 3 Inspect shaft bushings A Bushing I D is 25 05 25 07 mm 0 986 to 0 987 in 4 Install bushing with grease 5 Coat shaft Cl with g...

Page 395: ...l Shaft0 D 24 95 to 25 M mm 10 982 to 0 984 in Pedsl andsh Claannes Limit 1mm 0 Min 8 Check return spring 8 for proper tension Replace if the loaded dimension exceeds 230 mm at 185 N 9 055 in at 40 75 lbs 9 Insert pedal shaft A through clutch pedal C into clutch housing A P d 1 Shaft B Clutch Housing C Clutch PPed 10 Install spacer washer against clutch housing and key on the shaft and install lef...

Page 396: ...5 kgm 40ft lbs A 1 T y p Snap Rino B PedalShaft C Falor Gwp ADJUSTMENT 1 Loosenlock nuts on each brake rod to unlock turnbuckle A 2 Depress each brake pedal individually to measure free travel of pedals before engagement 3 Maximum free travel is 50 mm 1 969 in Adjust so pedals are matchedto 25 mm 0 984 in free travel 4 Depress brake pedalsand engage parkingbrake Check opera tion of lever for prope...

Page 397: ...from operatingcam lever C 2 Remove cover to brake housingcap screws LA A Cap Screw B Brake Cover C C m Lever D Brake Rod Yoke 3 Remove brake cover assembly with shoes DISASSEMBLY 1 Remove reutrn springs 8 and removeshoes El 2 Removeoperating lever with shaft D A Anchor Pin B Shw R a u m Sprinm C Cover 0 Opming L r wim CsmS h m E BmkmShoes 3 Flatten lock plate A for capscrew 8 for brakedrum C ...

Page 398: ...Brakes 60 15 7 4 Remove cap screw 0 and brake drum A SME27601118704 YMZ76and 276D Kinomoro Printed in Jsprn ...

Page 399: ... C O D at end of pin is 17 96 18 00 mm 0 7071 to 0 7087 in Thickness at flat end of pin is 7 9 8 1 mm 0 311 to 0 319 in h 4 Check brake shoe return springs F for damage or wear Lengthof spring is 39 mm 1 535 in at 117 N 26 2 lbs 5 Inspect brake linkagefor wear or damage 6 Inspect I D of brake drum for wear or damage I D of drum should be 140 0 to 140 1 mm 5 512 to 5 516 in Replace if I D exceeds 1...

Page 400: ...with Cnn Pin E B d a S h a The leversare not same para for left and right side brakes 6 Install Brake shoes E and return springs B 7 Put tractor in gear and engage differential lock Install brake drum on shaft Torque retaining nut to 25 Nm 25 kgm 20 ft lbs 8 Install new gasket without sealant and installcover on rear axle housing 9 Engage brake while torquing cover cap screws Torque to 25 Nm 2 5 k...

Page 401: ... pedals are matchedto 25 mm I1 in free travel BRAKE SHAFT SEALS If oil contamination is present in the brake housingor in the shoes pinion shaft Brake shaft seals must be replaced REMOVAL 1 DrainTransmission HydraulicOil 2 Remove oil seal A usinga chisel C A Oil Seal I3 Sd Collar C Chml 3 Inspect seal collar sealingsurfacefor wear Replaceas required 4 Install new oil seal by using tube driver SMF1...

Page 402: ...RAULIC REPAIR 70 00 SPECIFICATIONS AND SPECIAL TOOLS 05 MISCELLANEOUS HYDRAULIC COMPONENTS 10 HYDRAULIC PUMP 15 HYDRAULIC LIFT AND IMPLEMENT HITECHES sME2760 11 8J04 YM276and 2760 Kinomoro Printed in Japan ...

Page 403: ...lbs Hydraulic Inlet Outlet and Return Port Plugs 32 Nm 3 kgm 21 7 ft lbs Hydraulic Hollow Plug 78 Nm 8 kgm 57 9 ft lbs Hydraulic Pump and Drive Unit ITEM NEW PART SPECIFICATIONS Pump Drive Shaft O D at Gear Pump Drive Gear 1 D 24 99 25 00 mm 0 9839 0 9842 in 24 965 24 975 mm 0 9829 03832 in Pump Drive Gear and Shaft Interference 0 015 0 035 mm Tightness 0 00059 0 00137 in Pump Drive Gear Backlash ...

Page 404: ... 249 lbs ITEM NEW PARTS SPECIFICATIONS WEAR LIMIT LiftingShaft Sleeve 0 0 5497 54 99 mm 12 164 2 165 in Lifting Shaft Bushing I D installed 55 07 55 14 rnm 2 168 2 171 in Clearance between Sleeve and Bushing 0 080 0 169 mm 0 4 mm 0 003 0 007 in 0 016 in Lifting Shaft Bushing Installation 8 0 8 5 mm Depth 0 31 0 33in Hvdraulic PistonO D 79 94 79 97 mm 3 147 3 148 in Hydraulic Cylinder I D 80 000 80...

Page 405: ... in PositionControl Feed Back Rod A Length 159 mm 6 26 in Draft Control Feedback Rod Length 173 mm 6 81 in Distance From Center of Rear Hole of Upper Link Hinge to Cylinder Case Rear MachiningSurface 134 5 mm 5 3 in CAP SCREWS TORQUE SPECIFICATIONS Control Valve to Side Case 34 Nm 3 5 kgm 25ft lbs Hydraulic Lift Assembly to Transmission Case 60 Nrn 6 0 kgm 43 ft lbs Lift Arm to Lifting Shaft 98 Nm...

Page 406: ...TOL 9302000 Removing safety valve spring holder Remove and install valve seats of safety and stop valves Install valve seat O ringsfor safety and stop valves Ratchet Box M6 TOL 93010000 Removingand installing hydraulic lines retaining cap screws SMEZ76OIN83M YMZ76and Z76D Kinomoro Printed in Jamn ...

Page 407: ...trated on cover A with grease before installingfilter cover Replace O ring as necessav 6 Tighten cover to transmission case cap screws t o 12 N m 1 2 kgm 8 7 h lbs A Fill Cwer B Cap Screws HYDRAULIC OIL FILTER CARTRIDGE TYPE 1 Remove hydraulic oil filter A 2 Clean filter mounting pad 3 Install new filter element appling a thin film of oil to sealing ring 4 Screw filter element down by hand until s...

Page 408: ...mp B Pump lnht Ltne C RuM r Hora D Filar Bracket E Filer Hwsing F Hydmulic Oil Filter G P n s u n LIM H Filmr lnht P pHaad I Rubber Hors J F lmr lnlat Lane K Rubber lnwlator L S w r M Hollow Plug N Filter Scrrn 0 0 nnp P Filter Cover 0 Cap Ssr R Plvg For Oil Heater ...

Page 409: ... IN or P of aux tl ary valve to upper plug Dl as illustrated 3 Remove plug E and connect hydraulic line to be connected to PBY of auxiliary valve to lower plug H a s illustrated 4 Connect hydraulic line to be connected to OUT or T of auxiliary valve to return plug Caution Make sure all connections and finings are securely A tightened before starting engine Oil Flow Without Auxiliary Connections Fi...

Page 410: ...r for Auxiliav Valve AUXILIARY VALVE vVolume of oil required to extend cylinder of implement must not lower tlansmissionhydrarlicoil level below end of dipstick Check oil levelwith the cylinder fully extended Whenever dismounting the hydrauliclines of implement from the outlet ports the headless plug MUST be removed to avoid hydraulicpump breakage ...

Page 411: ...5 in Replace faulty parts as necessary P 4 Inspect bearings 1 for wear or damage Replaceas necessary 5 Inspect snap rings B and Cl and spacer D Replace as neces sary A Hydraulic Pump F Shaft B Snap Ring G Packing 2 urd C Snap Ring H Pump Mounting Flange D Swmr I Bearing 2 uvdl E Drire Gear Ifworn or damaged the hydraulic pump must be replaced as a unit it is not a serviceable item v Disassemble pu...

Page 412: ... flange H Install snap ring C and other bearing I with spacer ID 2 Install pump drive gear E with shaft F through bearings I lnstall snap ring 0 on the end of shaft FI 3 lnstall new gaskets GI bemeen cylinder block and pump mounting flange and betweenflange and pump housing 4 Apply grease to pump drive unit bearings I lnstall the unit and pump assembly on stud bolts 5 Temporarily tighten pump reta...

Page 413: ... do not require such removals A Hydraulic Cylinder Case B Cylinder Head c side c The each hydraulic system part is to be disassembled with the following component removals 1 Cylinder head removal far Main Relief Valve 8 Safety Valve Stop Valve 2 Side Case removal for Main Spool Load Check Valve Flow Control Valve MechanicalCheck Valve Unload Valve Control Lever Linkage 3 Hydraulic cylinder case fo...

Page 414: ...escribedon page 10 20 19 Cylinder Head Remove the 4 cap screws Side Case 1 Disconnectcontrol lever linkage 2 Remove the 4 nuts and 5 cap screws Hydraulic lift assembly removal is not necessary to remove s decare for inspection of control valve and control lever linkage A Conlml Lsva Linkage B Cap Screws 15 C Nus 141 ...

Page 415: ... 8 kgm 57 9 ft lbs Control valve Assembly 1 Be sure all O rings are in good condition 2 Tighten bolts to 34 Nm 3 5 kgm 25ft lbs Hydraulic Lift Assembly 1 Replace gasket 2 Tighten bolts and nuts to 60 Nm 6 0 kgm 43 ft lbs Upper Link Hinge 1 Clean mating surfaces of upper link hinge and hydraulic cylinder case 2 Replace gasket 3 Tighten bolts to 100 Nm 10 kgm 72 ft lbs SMEZ760111 8304 YMZ76 and 276D...

Page 416: ...B o o r INSPECTION 1 Examine valve seat G and valve body F for damage burr 0 6 0 and contaminants 2250620 2 Free length of spring D should be 50 7 mrn 1 996 in and should mmpress to 42 mm at 324 N 1 654 in at 73 0 lbs There are five shim C thicknesses available 0 1 mm 0 0039 in 0 2 mm 0 0079 in 0 3 mm 0 0118 in 0 5 mm 0 0198 in 1 0 mm 0 0393 in Replace spring or shim as necessary 3 Replace O ring ...

Page 417: ...pring I E O ring K Stop Bolt Holder F Back up Ring L Spring Pin INSPECTION c 9 0 1 Inspect valve H for damage and burr 2 Inspectstop bolt D for scoring or damage 3 Stop bolt O D at center is 12 40 to 12 42 mm 0 488 to 0 489 in s s G I E Cap C I D where stop bolt moves is 12 5 to 12 52 mm 0 492 to 0 493 in 4 Inspect0 Ringr Eand I for damage Replace as necessary 5 Free lengthof return spring J is 19...

Page 418: ...e valve before installing A Knob G Spring Pin B Spring Pin H Stop Vslvs C Cap I O ring D Stop Bolt J Return Spring E O ring K Stop Bolt Hdder F sack Up Ring L Spring Pin 2 Apply multipurpose grease to valve assembly 3 Install valve to hydrauliccylinder head 4 Install springpin GI cap Cland knob A ...

Page 419: ... H Valve Seat I O Rinp INSPECTION 1 Inspectvalve seat H andsteel ball GIfor damage and burrs 2 Free length of spring ID i s 44 mm 1 732in It should cornp ress to 35 14mm at 248 6 N 1 383in at 56 15 lbs 3 Shims 0 2 mm 0 0078in 0 5 mm 10 0197 in 4 Replace spring or shim as necessary 5 Inspect O Ringfor damage Replace a s necessary INSTALLATION 1 Carefully install O ring using TOL 930200a 2 Install v...

Page 420: ... REMOVAL General 1 Removethe three recessed hex socket bolts INSPECTION General 1 Inspect O ring for damage 2 Check for excessivewear on position control bar draft control bar and pin at their connecting points A Connol Valve A r m b i y B 0 Rim 13 C Paition ControlBar D Or Catrol Bar SwE27M lr l a z e 4 YM276and 276D Kinornoto PrinadinJam ...

Page 421: ... 5 O ring 1 6 Pluo FLOW CONTROL VALVE 1 7 Spool la Spring 1 9 0 ricq 2 0 Plug MECHANICAL CHECK VALVE 2 1 P0pp t 2 2 O rinp 2 3 B r k v p Ring 2 4 Spring 2 5 Hold 2 6 P u h Bar n P U B N U LOAD CHECK VALVE 2 8 Poppt 2 9 Spring 30 O ring 3 1 Plug SME2760 1 8304 YM276and 276D Kinornoto Printed in Jam ...

Page 422: ...ool pin for am reason Rernwalwill damage main spool 2 Carefully remove main spool 3 Inspect spring for misalignment wear and damage 4 Check spring length Free lengrh 40 mrn H 575 in Workin9 Load 26 5 mrn at 83 3 N 18 5 kg 1 043 in at 18 7 ib 1 5 Inspect spool for damage and burr I 6 Check oil clearance betweenspool and case I tmust be 0 008 t o 0 015 mm 0 0003 to 0 0006 in l NSTALLATION 1 Insert a...

Page 423: ... t 29 3 N 13 0 kg 10 689 in at 6 6 lbrl 4 L 3 Inspectpoppet for damage and burr 4 Check oil clearance betweenpoppet and case 1 1 3 2 Oil Clearance 0 016 m 0 045rnm 10 OW6 to0 0017 in 1 5 Inspect0 ring on plug Replace as necessary 1 Plug 2 O ring 3 Spring 4 poppet INSTALLATION 1 Install poppet spring and plug with O ring 2 Tighten plug Torque 30 Nm 13Llkgm 22fl Ibsl _ SME27EUIlJB3W YMZ76 and 2760 K...

Page 424: ...Inspect and measurespnng 4 Free Length 40 rnm 11 575 in WorklngLaad 35mmat4 9N 1 378 in at 1 1 lbrl 5 Inspect poppet for damage and burr 6 Check oil clearance betweencase and poppet Oil Clearance 0 016 to 0 045 mm 0 0006 to 0 0018 in 1 Plug 2 O rin 3 Spring 4 Poppet INSTALLATION 1 Install poppet spring plug and O ring 2 Tighten plug Torque 30 Nm 3 0 kgm 22 ft lbs SME276OlllB1M YM276and 276D Kinmor...

Page 425: ...alog spools and poppets are not interchangeable If there is damage burrs or excessive oil clearance replace the control valve assembly as a unit 1 Main Spool 2 Poppet L d Ches Velvsl 3 Spml Flow Control Valve1 4 Poppet MechanicalC k k Valve 5 Poppet UnloadValve1 m 1 REPLACE WHOLE CONTROL VALVE I SME2760111dJ04 YM276snd 216D Kinomoto Printed in Japan ...

Page 426: ...readjusted push bar in control valve body See page 70 15 10 A Push Ear Lengrh B ConnestingPlate C Puh Bar STEP B 1 Attach conrrol valve to hydraulic case with three hex socket bolts 2 Attach assembled hydraulic case to transmission case with eight cap screws 3 Connect hvdraulic lines STEP C 1 Start engine and set engine speed at 1500 rpm 2 Move control lever rearwardto the raise position If attach...

Page 427: ...0 to 3 151 in Replace piston or cylinder if clearance between them exceeds 0 3 mm 0 012 in 2 Check O ring A and back up ring 6 on piston for damage Replaceas necessary 3 When installing O ring and back up ring insure that O ring is closer to piston head and back up ring is closer to piston skirt A O ring B Bxk up Ring C Pirton D P irt n Head INSTALLATION 1 Apply transmission hydraulicoil to piston...

Page 428: ... 168 to 2 171 in 2 Check splined sleeve for excessivewear or damage O D should be 54 97 to 54 99 mm 2 164 to 2 165 in The clearance between the bushing and the splined sleeve should be between 0 080 and 0 169 mm 0 003 to 0 007 in n If it exceed 0 4 mm 0 016 in replace the splined sleeve the bushing or both 3 Press fit a new bushing into the hydraulic cylinder case until the distance between its ou...

Page 429: ...ft IAI Insure that end of lifting shaft A with drilled hole is on the right hand side 3 Fit two O rings F onto splined sleeve El Lightly grease splined sleeve and fit it over lifting shaft LA Repeat on opposite side Be sure to install splined sleeves El tapered end first Be careful not to damage O rings 4 lnstall reals G over lifting shaft A1 and into splined sleeves El 5 Install thrust washer H o...

Page 430: ...er FrictionPlate Siis Cwn O ringIP 151 O ring lP 9 PositionControl Shdi Dnft Contml Shaft Pmition Fadback S b f t D n f t F d b d Shuft D n f t Control Bar PositionContml Bar D n f t Control Fadback A m PoMion Contml Fsadbac Arm D n h F db c Rod PositionFrdbac Rod Intermaline Arm PiumStud Rear Dm Fmdbadf Rod Hydnvlic Cylindsr Caa Nut SpringPin SME2760 1JBJLX YM276and 2760 Kharnom Printed in Jawn ...

Page 431: ...m t h e control lever and remove position control lever B and draft control lever C from two control shafts A N u t B PoritionControl Laver C Dnft Control Laver 5 Pull position and draft control shafts out after removing wood ruff key from position control shaft 6 Remove spring pin A from draft feedback shaft IB and then remove two feedback arms Cand D 7 Remove woodruff key from position feedback ...

Page 432: ... draft feedback shaft Ll into the bore of them with O ring G 2 After installing friction plate E against Side cover install position control lever 0 with woodruff key 3 Install plate C and two conical springs 01 and friction plate and another two conical spring 0 4 lnstall draft control lever A over the conical springs 0 with woodruff key and install washer and nuts Q 5 Adjust the control lever to...

Page 433: ...Comml Bat B Dnfi CommlShan c nnn a e d b r k shsn 7 Install position control bar A to position control shaft 10 and position feedback shaft C with slot hole side onto positon control shaft Upper side A Position Control Bar B Paition Comrol Shan C Psition Feadback Shaft INSTALLATION 1 Replacegasket 2 Install side cover on cylinder case 3 Tighten cap screws and nuts to 25 Nm 2 5 kgm 18 ft lbs ...

Page 434: ...6 26 in 8 773 mm 16 81 in C 92 5 mm 3 6 4in Position Control Feedback Rod Adjustment 1 Adjust position control feedback rod to approximately 159 mm 6 26 in length 2 Start engine and run at 1500 rpm 3 With slow return stop valve open pull the position control lever outer lever rearward raising lift arm to maximum height 4 Check free play at lift arm end Play should be 7 to 10 mm 0 3 to 0 4 in If no...

Page 435: ...ntrol lever in rearward position upper position close slow return stop valve to operate main relief valve If relief noise is not heard lengthen draft feedback rod 4 Shorten draft feedback rod until relief noise disappears then tighten turnbackle another 2 112 to 3 turns 5 Lock turnbuckle with lock nuts Draft feedback spring m u n b e correctly adjusted when adjurtlng feedback rod sME2760111 304 YM...

Page 436: ...nly on the tractors as follows YM276 before 20586 YM276D before 41399 1 Upper Link Hinp 2 Nun 3 Hinp Pin 4 Buahinga 5 Inner Spring 6 0ut r Spring 7 8011 8 Pin 9 LO Phm 10 Lo Hi 11 H i w S w w r Spriw 12 Sns 13 Cap k w IM14 451 14 Cap Scrw lM14 551 15 H i mS t Screw 16 Hydrwlic Cylindar C m n ...

Page 437: ...I4 x 551 G Sensor Springs C R u r D n f t F d b d Rod H HinvaStoppsr Springs D Nutr I CapScmm E Upper Link Hinge 3 Flip the upper link hinge up and remove inner and outer springs Inner spring i s not used on the following tractors vYM276 before 20586 YM276D before 41399 4 Loosen set screw B and pull hinge pin A out A Hinge Pin B St Ssnw C Uppsr Link H i m 5 Remove spring pin A and pin C from the r...

Page 438: ...k Pin Born C Pin D Pin Bore In Bolt ASSEMBLY 1 install hinge pin 6 and upper link hinge A and tighten set screw CIto 33 Nm 3 5 kgm 24 ft lbs 2 Install inner and outer springs E between cylinder case rear cover and upper link hinge A Upper Link Hinps D Bolt B Hingepin E Spring C S n S w F Nut 3 Tighten nut F until spring length A is 92 5 mrn 3 64 in 4 Tighten lock nut 5 If the upper link hinge asse...

Page 439: ... Fig a s guide When assembling insure all bolts are tightened to specified torques LOWER LINK A Lift Link Left B Oui LM Pins C Spring Losk Pins D Pin E Lowr Link F Conmctiw Spring G Chs Chain Hing Pin H Chsr ChainAsrnbly I Spring Lwk Pins J Turn Bucklrr SMEZ SO IIB W YM276and 276D Kmomofo Prinred in Jaoan ...

Page 440: ...ring pin C from yoke G a s well as the upper spring pin 6 Remove yoke G from turnbuckle E A Quick Lock Pin F Om Fining B Upper Lin End G Yoke C Spring Pin 12 H Pin D Nut I Spriw Lock Pin E Turnbuckle A UPPER LlNK DISASSEMBLY 1 Remove grease fitting F from middle of upper link turnbuckle El 2 Thread upper link ends C and H in until threaded end is seen through grease fitting hole 3 Remove spring pi...

Page 441: ...c Lift and Implement Hitches 70 15 31 r DRAWBAR 1 If the drawbar bracket Elwas removed tighten cap screws C to 98 Nm 10 kgm 72 ft lbs with lock tite A P h B Spriw Lock Pin C Cap Suawr 61 D D h E Drwbar Bracket ...

Page 442: ...70 1532 Hydraulic Lift and ImplementHitches 6 ShfE2760111BJM YM276and 2760 inomoco Printedin Jswn ...

Page 443: ...MISCELLANEOUS REPAIR 80 00 SPECIFICATIONS AND SPECIAL TOOLS 05 FRONT AXLE 1SSEMBLY 10 WHEELS sME276011183D4 YM276 and Z76D Kinornoto Plinred r Jswn ...

Page 444: ......

Page 445: ... 29 96 29 98 mm 1 179 1 180 in 30 00 30 03 rnm 1 181 1 182 in 0 02 0 07 mm 0 25 mm 0 001 0 003 in 0 01 in CAP SCREWS TOROUE SPECIFICATIONS 2 Wheel Drive and 4 Wheel Drive Center Pin to AxleBracket 80 Nm 8 kgm 58ft lbsl Drag rod to Steering Arm Nut 45 60 Nm 4 5 4 kgrn 3 3 4 4 ft lbr Tierod to SteeringArm Nut 45 60 Nm 14 5 6 kgm 3 3 4 4 ft lbs Front Axle Bracket to Engine 98 Nm 10 kgm 72ft lbs 2 Whe...

Page 446: ...OOLS I King Pin Bushing Installation Tool 30mm Installing king pin bushing A 1 180 i n 129 98 mml B 1 339 in 134 mml C 1 260 in 132 mml Ball Joint Removal Tool Removing tie rod or drag rod ball joints SME276011l sJ04 Kinommo Printed inJam YMZ76and2760 ...

Page 447: ...arking brake and block rear wheels 2 Attach a hoist or jack t o bumper lift up tractor just enough t o take weight off tires CAUTION Do not lift so high that the tractor tip over for A slipping wt of block or jack head f l 3 Disconnectdrag rod A from steeringarm B A Drag Rod B Stwring Arm 4 Remove four cap screws A from center pin 0 5 Placefloor jack under center of axle 6 Carefully pull the cente...

Page 448: ...structionsthat follow 1 Installspacer A into front support of axle bracket D 2 Install center pin IF by tapping it into front support from the front Grease center pin and center pin bushings inside 3 After adjusting shims 1E are inserted behind the center pin mounting plate tighten four cap screws C to 80 Nm 8 kgm 158ft lbs 4 Check axle end play by pulling axle fully rearward on center pin 5 Inser...

Page 449: ... be necessary to tap the steering arm with a hammer to loosen it from king pin A 3 Remove key 6 from king pin 4 Remove king pin from knee HI of front axle hous ing Do not allow king pin to fall on floor INSPECTION AND REPAIR 1 lnspect knee bushings E for wear or scoring Bushing I D should be 30 00 to 30 03 mm 1 181 to 1 182 in 2 lnspect king pin for wear or scoring Shaft O D should be 29 96 to 29 ...

Page 450: ...hing Installation Tool 30rnm 6 Drive upper bushing until dimension A is obtained Since the king pin and spindle is an integrated unit it should Vbe carefully inspected for crack I f there is any question about the condition of the unit it should be inspected by Magnaflux or a similar crackdetection process A 6 2 to 6 5 mm 10 244 to 0 256 in B Bushing 2ursd C Chewfared Edge SME2760171 8jlM Kinomoro...

Page 451: ...icator a s shown Move the king pin up and down a s shown while observing the dial indicator Play should be 0 03 to 0 61 mm 0 001 to 0 024 in 4 Install wheel and tire assembly Tighten four cap screws to 137 Nm 14 kgm 103ft lbs 5 Removesplitting stand and lower tractor 6 Using a multi purpose grease lubricate spindle shafts To lubricate remove plug 0 Inject grease until it flows from plug opening In...

Page 452: ...t and right tires at rear of tires 3 Measure distance between left and right tires at front of tires Front measurement should be 4 to 8 mm 0 157 to 0 315 in lessthan rear measurement 4 If need to adjust toe in loosen both tie rod jam nuts and turn tie rod until toe in is correct Turn the tie rod toward the front of the tractor to increase toe in and to the rear to decrease toe in Toe in adjustment...

Page 453: ...1 I 2 Removecap screws A from front axle 0 3 Slideaxle knee to desired position 4 Install cap screws and tighten nut to 196 Nm 20 kgm 147 ft lbs 5 lnstall cap screws in tie rod clamps making sure tie rod is changed same amount as axle Tighten tie rod slotted nut to 49 Nm 5kgm 36 2 ft lbs 6 Install new cotter pin 7 Do not need to adjust drag rod length for 2 wheel and 4 wheel drive models even if f...

Page 454: ...shaft front cover 0 and loosen cap screw of rubber hose clamp Then slide the cover to center 5 Remove front drive propeller shaft a s described on Chapter 10 Section 20 A PropellerShait Cwsr Retaining cap s e w B PropellerShaft Cover 6 Remove four cap screws A from center pin 0 A C a p S c m 8 Canter Pin 7 Place floor jack under center of axle 8 Carefully pull the center pin out Do not loose or da...

Page 455: ...er pin mounting plate tighten four cap screws to 80 Nm 8 kgm 58 ft lbs 4 Check axle end play by pulling axle fully forward on center pin 5 Insert a filler gauge C between spacer A and front end of axle housing 8 6 Front axle end play should be 0 to 0 3 mm 10 to0 012 in If there is excessive end play loosen center pin cap screws and remove adjusting shims 0 25 mm 0 01 in and 0 5 mm 0 02 in thick sh...

Page 456: ...80 05 10 Front Axle Assembly ...

Page 457: ... Remove wheel 4 Removecap screws L and hubcap J 5 Remove cotter pin H and slotted nut G 6 Pull hub C forward slightly to unseat outer bearing Dl Remove washer F and outer bearing n 7 Remove hub from spindle 8 Remove oil seal A and inner bearing B by driving out the bearingwith a drift A O i l Seal G Slotted Nut 8 Inmr Bearing H Cater Pin C Hub I Pr img D Outer Bearing J Hub Cap E CapScrsws 6 uoadl...

Page 458: ...hole lines up Fill hub housingwith grease enough 6 Install packing C hub cap 0 and cap screws A 7 Install wheel on hub Tighten four cap screws to 137 Nm 114 kgm 103 ft lbs 1 A Clp Scrsws G 0ut r Bearing B HubCq H Hub C Pa ina I Inner Bearing D Cmtar Pin J O i l S r i E SloMd Nut K Spindie F Wah REAR WHEELS 1 Check rear wheel disks and rims for demts scores cracks or other damage Replaceor repair a...

Page 459: ...P ENGINE OPERATION AND TESTS 220 00 SPECIFICATIONS AND SPECIAL TOOLS 05 SYSTEM OPERATION 10 SYSTEM TESTS AND DIAGNOSIS WE2760 7IB W VM276and 2760 Kinomoro PIintsd in Jspan ...

Page 460: ......

Page 461: ...7 psi Compression Pressure 3430 to 3920 KPa 35 to 40 kg crn2 497 to 569 psi at 300 rpm Radiator LeakageTest 98 Kpa 1 0 kg cn2 14 psi Fan Belt Tension 10 to 15 rnm at 8 86 N force 318 to 518 in at20 lbs Valve Clearance 0 15 rnrn 0 006 in Crankshaft End Play New Part 0 09 to 0 19 rnrn 0 0035 t o O GU75 in Maximum Acceptable 0 33 rnrn 0 013 in ...

Page 462: ...OLS CompressionGauge Kit TOL 92080001 Checkingengine compression pressure Lube Oil Pressure Gauge Kit Checkingengine lubricating oil pressure Radiator Tester Checking radiatorcap and system leakage SME276011J RZM YM276and 276D Kinornoto Prinred in Japan ...

Page 463: ...wear The camshaft is supported in the block at four points Camshaft middle and rear iournals rotate in the block casting no bearings Two middle bearings are lubri cated with pressurizedoil Ball bearings support the camshaft at the front journal The engine are equipped with hand press fit drysleeve replaceable type liners The crankshaft has four main bearing supports The two center bearings are enc...

Page 464: ...h the filter oil continues on around the filter by pass valve and in front of the oil pressure regulating valve Oil is then distributed under pressure to each main bearing F and on through cross drilled passages in the crankshaft to connecting rod bearings GI An external line carries oil from the rear of the engine oil gallery t o the wlinder head to lubricate rocker arms and valves Oil run from e...

Page 465: ...ansion tank 0 and thermostat CI A hose from the radiator filler where it is condensed When engine temperature is neck is connected t o an expansion tank D When cooling reduced a vacuum is created in the radiator and coolant system pressure exceeds 88 Kpa 0 9 kg cm2 13 psi is drawn back out of the sub tank expansion tank engine overheating a valve in the radiator cap opens SME2760111a304 YM276and27...

Page 466: ...220 65 4 System Operation ...

Page 467: ...l 2 Good compression 3 Proper valve and injection pump timing for good combustion Make the dynamometer test as follows 1 Connect the engine to the dynamometer using the manu facturers instructions 2 Owrate the engine at onehalf load until the coolant and crankcase oil temperature are up to normal 3 Run engine at fast idle 12725 rpm 4 Gradually increase the load on the engine until its speed is red...

Page 468: ...placeroller guide Replace injection pump cam lobes Tighten Replacenozzle valve Clean nozzle Check and replace plug as required Check valve clearance and or check piston rings and cylinder liner Engine rumirregularly Basic Engine Problem or Miss Improper valve clearance Adjust valve clearance Compressionpressures of cylinders Check pressure and replace cylinder are uneven Air in fuel injection pump...

Page 469: ...cess fuel delivery Improper injection timing Basic Engine Problem Excessive piston liner clearance Worn stuck or damaged piston rings Piston ring gaps not staggered Faulty valve stem seal Service Problem Oil pressure regulating valve adjusted too high Engine oil too thin SUGGESTED REMEDY Adjust valve clearance Lap valve seats Replace head gasket Replace piston Rings Check linkage and replace as re...

Page 470: ...tuck or improperly adjusted Replace or adjust valve regulating valve Black exhaust smoke Fuel System Malfunction Improper injection timing Excessive injection rate Faulty nozzle spray Operator Error Engine overloaded Service Problem Clogged air cleanel White exhaust smoke Basic Engine Problem L o w compression Operator Error Engine Not warmed up Excessivefuel Basic Engine Problem consumption L o w...

Page 471: ...ure Lower Limit Pressure given was taken at 305 m 1000 feet above sea level A 3 6 reduction in gauge pressure will result for each addi tional 305 m 1000 feet of altitude An engine with compression pressure of 2940 KPa 30 kg crn2 426 psi or less will be hard to start and is in need of overhaul If pressure is much lower than shown remove gauge and apply oil to the ring area of piston through inject...

Page 472: ...he TDC mark FRONT OF ENGINE 7 T V f is E I E I 0 6 1867018 0 3 E 0I of the No 3 cylinder 6 Check the intake and exhaust valve clearances of the No 1 CYLINDER IS AT REAR OF ENGINE Adjust to the followingspecifications INTAKE AND EXHAUST VALVE CLEARANCE SPECIFICATIONS Valveclearance 0 2 mm 0 008 in 8 Check the vlave clearance of the intake and exhaust valves of the No 3 cylinder and adjust to proper...

Page 473: ...pressure check for defective oil pressure regulating valve 5 At 1800 rpm oil pressure should be 245 to 392 Kpa 2 5 to 4 00 kg cma 36to 57 psi 6 To adjust oil pressure first remove oil filter 7 Remove oil pressure regulating valve body 8 Removespring retainer from valve body 9 Add shims to increase oil pressure and subtract shims to de crease oil pressure Addition of one shim increases oil pressure...

Page 474: ...o 518 in at 8 86 N 20 lbs force CHECKING CRANKSHAFT END PLAY Use the following procedure to check crankshaft end play while engine is in tractor 1 Place a dial indicator base on tractor frame as shown Use care not to distort the timing gear cover or crankshaft pulley when prying Place pry bar in placeas shown 2 Pry between the pulley and timing gear cover to determine end play Compare readingtaken...

Page 475: ...00 SPECIFICATIONS AND SPECIAL TOOLS 05 AIR INTAKE SYSTEM 10 FUEL SYSTEM 15 SPEED CONTROL LINKAGE S M E Z 7 I I I S J W YM276and 276D Kinornoto Printed in Japan ...

Page 476: ......

Page 477: ...ntrol Linkage ITEM Speed Control Linkage Forceto move throttle lever h SPECIFICATIONS 25 Nm 2 5 kgm 18 ft lbs SPECIFICATIONS 32 Q 8 4 US gallons 21 f 2 Before TDC SPECIFICATIONS Approx 44 N 4 5 kg 9 9 Ibs Engine PTO Speed Relationship ENGINE RPM PTO RPM Fast idle speed 2775 i 25 664 6 Slow idle speed 9 W 25 191 f 6 Rated Full load 2600 622 1133 PTO SMEZ7601118304 YM276and 2760 Kinamoro Primed in J...

Page 478: ...s Tip Bleeding fuel system Open end Wrench Adjusting governor system Bleeding fuel injectionpipe 13 mm Two 17 mm 19 mm 22 rnrn HandTachometer Checkingengine and PTOspeeds Circuit Tester Checkingthermostart system SME2760171 8304 YM276and 2760 Kinomoro Printed inJnwn ...

Page 479: ...Specificationsand Tools 230003 Injection Pump Adjusting Adapter TOL 92060000 Measuring pump plunger top clearancewith a dial gauge Yanmer Pump Tester Type 1 Testing fuel injection pump ...

Page 480: ...2300Od Specificationsand Tools SME276Oll 8304 YE4276and 276D Kinornoto Prjntea in Japan ...

Page 481: ...leaner C Intake Manifold Dust laden air enters the precleaner inlet and is forced into a highspeed centrifugal motion Heavier dust particles are separated from the air lbecause of centrifugal motion and deposited in the dust cup CI Lighter particles are removed from the air and retained by the filter element D before the air leaves the air clearnerat outlet 6 A Pmlesnsr B Air Outlet C Dust B o d D...

Page 482: ...air intake system diagnosingof engine malfunctions Page 220 10 2 PROBLEM POSSIBLE CAUSE SUGGESTED REMEDY Engine does not develop full power Engine emitsexcessive black smoke Restriction in air cleaner i s restricted Clean or replace element Chapter 30 Section 05 Restriction in air cleaner element is restricted Clean or replace element Chapter 30 Section 05 SME276Of118304 YM276and 276D Kinomoro Pri...

Page 483: ...he plug the heater coil ID i s heated causing push rod F to shift to the right The ball check valve IC then opens When the ball check valve opens fuel enten the thermostart plug and evaporates when it contacts the heater coil The evaporated fuel i s then ignited by the ignitor El and a flame is produced After the recommended preheating time of 15 20 seconds has transpired the operator turns the ke...

Page 484: ...230 054 Air Intake System ...

Page 485: ...zle valve When the nozzle valve opens fuel is forced out through the nozzle opening into the precombustion chamber AJ Compressed air from the cylinder Dl is directed into the precombustion chamber through four holes 6 in the bottom of the chamber The design of the cylinder head and precombustion chamber causes the compressed air to enter the precombustion chamber in a swirling motion Thus when the...

Page 486: ...seous mixture enters the main combustion chamber where the combustion process is completed lncorpwated into the fuel system is a means of returning excess lor unused fuel back to the fuel tank Excess fuel comes from the injection nozzles where a small amount of fuel seeps past the nozzlevalve for lubrication purposes This fuel is routed through a leak off line F to the fuel reservoir G which suppl...

Page 487: ...icking lnjection nozzle return lines clogged Fuel lines clogged or restricted Fill tank with correct grade of fuel see machine operation manual Use correct grade of fuel see machine operation manual Use correct grade of fuel see machine operation manual Correct problem and bleed air from sys tem this section Drain water from fuel Install new filter this section Replacefuel filter this section Adju...

Page 488: ...sfaulty or sticking lncorrect pump timing Pump slow idle speed not correctly adjusted lnjection pump faulw Defective precombustion chamber copper gasket SUGGESTED REMEDY Use correct grade of fuel see machine OM Replace fuel filter this section Drain and replacewith clean fuel Install new filter this section Adjust speed this section Adjust timing Chapter 30 Section 10 Repair Chapter 30 Section 10 ...

Page 489: ...owl before the filter element the righthand screw after the filter element Water and sediment settle to the bottom of the sediment bowl for removal when necessary A Inlet B Filter Element C SadimantBowl D Outlet E Spring REPLACING FILTER ELEMENT Before replacing the filter element shut off the fuel supply to the filter by turning the fuel shut off lever straight up Then do the following 1 Unscrew ...

Page 490: ...ver the fuel system has been opened up for service lines disconnected of filter removed it will be necessaw to bleed the air from system 1 Refill fuel tank if it isempty 2 Open shut off valve 3 Loosen both bleed screws on fuel filter housing When air bubble i s gone and fuel flows out bleed hole tighten screws 4 If the fuel line from injection pump is also empty loosen bleed screw on injection pum...

Page 491: ... gravity pressure from the fuel tank fills into the injection pump fuel gallery C As the engine camshaft rotates roller tappets G riding on the camshaft lobes H operate the plungers D t o supply high pressure fuel through the delivery valves 6 and fuel injection pipes A t o the injection nozzles A governor operated control rack E is connected t o the control sleeves F and plungers t o regulate the...

Page 492: ...m 2 992 0 002 in for the YPFR 0707 Pump type The mounting distance means the dimension from the mounting rutfaax of the cam box to a bare circle of the cam profile If this dimension is out of the specified value the adjusting shims should be added or reduced so that the mounting distance is within the specified value 2 Check the control rack stroke Operate the control lever and make sure that the ...

Page 493: ...Attach the dial gauge A t o the adapter Dl A Dial Gauw B Jig C Extension D Adapter 2 Stand the jig on a surface plate and adjust thr t o zero dial gauge reading 3 Remove the pump s delivery valve and mount the measuring jig in its place 4 Rotate the camshaft t o bring the plunger t o top dead center The dial gauge now shows the vertical distance o f the space above the plunger top PLUNGER SPECIFIC...

Page 494: ...measuring Tighten the holder 39 to 44 Nm 4 to 4 5 kgm 29 to 33 ft lbs TESTING PRESSURE OF DELIVERY VALVE 1 Attach a 98 Mpa 11000 kgf cm21 14220 psi pressure gauge to the delivery valve holder 2 Operate pump tester and give a pressure about 11 76 Mpa 120 kgflcm2 1700 psi to the delivery valve 3 Measure the time required for the pressure to drop from 9 8 Mpa 100 kgflcrn2 1422psi to 8 82 Mpa 90kgf cm...

Page 495: ...275 psi Calibrationfluid SAE J967C calibrating Fuel feed pressure 49 Kpa 0 5 kgf cm2 7 psi Fuel injection pipe Use the same dimension a s the engine s FUEL INJECTION NOZZLES GENERAL INFORMATION They Yanmar YDN OSDYD1 injection nozzles are of the single hole inward opening throttle type Throttle nozzles are common ly used on engines having precombustion chamber design because the spray pattern prod...

Page 496: ...plunger the pump delivery valve closes The nozzle valve then closes instantly t o stop fuel delivery and prevent afterdribble Itstays closed until opened at the next delivery stroke A The injection pump delivery valve has a relief plunger or some times called a retraction piston which is part of the delivery valve I t s function is to provide additional volume in the delivery valve holder for the ...

Page 497: ...ally be removed from the engine whenever there is a noticeable loss of power o f excessive smoking Listed above are various malfunctions which may occur on the Yanmar throttle nozzles Only possible defects related t o these nozzles are listed Failures in other com ponents of the fuel iniection system are listed under their respective headings in this section Refer t o Chapter 30 Section 10for repa...

Page 498: ...the insufficient volume of air in the pre combustion chamber the gaseous mixture air burned fuel panial ly burned fuel and unburned fuel is discharged into the cylinder at high velocity Because the initial ignition takes place within the precombustion chambers firing pressures in the cytinders are kept low This results in smaller loads when compared with engines not having precombustion chambers o...

Page 499: ...mount of fuel which the iniec to the injection pump A Regulator spring L connects tion pump delivers t o the engine the amount of fuel being to the regulator lever P and lever I together dependent upon engine speed and load conditions for obtaining a desired speed selection A Pin J on the control lever 1 push the 2nd governor lever Elto the Part of the mechanism thrust sleeve and front for increas...

Page 500: ...r fly weighs A to come closer together This in turn moves the governor thrust sleeve B to the left toward the crankshaft gear J 3 The 1st governor lever C moves to the left following the thrust sleeve because of tension on the regulator spring through pin K on control lever HI 4 If the increased load on the engine does not produce an over load condition governor lever will move against fuel limite...

Page 501: ...njection volume 4 Control lever H i s also moved t o the left through the pin K by the 2nd governor lever 5 As the load o n the engine stabilizes or i s increased the centrifugal force becomes balanced with the governor spring force and the amount of fuel delivered to the engine will produce a constant speed A Flyweights G Regulator Spring B Thmd Slews H Control Lever C InGovernor Lwsr I Rqulator ...

Page 502: ...imiter 2 2 0 to 230 518turn out of timing gear cover FOR LIMITER WITHOUT MARK Remove the screw driver A and the spacer Bl and screw limiter 375 to 400 1 118turns out of timing gear cover A Screw Driver E Control Rack B Governor Lacr F Punch Mark C Rapulnto Lwer G Reference Svrfaea D Limiter H Sp r 6 Secure adjustment with lock nut IB and install cap nut Be sure for limiter A not to be turned when ...

Page 503: ...SPEED CONTROL LINKAGE 230 15 1 B Link Rod D Foot Throttle Rod F Foot Thmnla Pedal ...

Page 504: ...so that stop screw D Fig above contacts the inkc tion pump mounting flange 6 Measure the PTO shaft speed u ng the Hand Tachometer C Fig under The PTO shaft speedlengine fast idle speed is a s follows A PTO Shaft C Hsnd Tschomelsr FAST IDLE SPEED SPECIFICATIONS PTO RPM Engine RPM PTO Gear 540rpm 664 6 2775 t 25 7 If the speed is incorrect remove the lead seal wire C Fig above from stop screw loosen...

Page 505: ...wre the PTO shaft speed using Hand Tachometer C The PTO shaft speedlengineslow idle speed is as follows S L O W IDLE S P E E D SPECIFICATIONS PTO RPM E n p i n eRPM PTO Gear 540 rpm 191 f 6 900 25 5 If the slow idle speed is incorrect adjust the position of swivel BI page 230 15 2 Fig above on control rod When the adjustment is correct tighten both lock nuts 6 Install the PTO shaft cover Foot Thro...

Page 506: ...230 154 Speed Control Linkage ...

Page 507: ...TRICAL OPERATION AND TESTS 240 00 SPEC1FICATIONS AND SPECIAL TOOLS 05 GENERAL INFORMATION AND DIAGRAMS 10 CHARGING CIRCUIT 15A 11 CHARGING CIRCUIT 35A 15 STARTING CIRCUIT 20 LIGHTING AND ACCESSORY CIRCUITS ...

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Page 509: ...10 to 16 mm 318to 518 in Regulator Model RS1105 A hanging Circuit 35A Optional for Northern Europe Alternator Model LT135 54 Alternator output minimum at 2600 rpm 35A Pulley nut torque 54 Nm 5 4 kgml I4Oft lbs Belt deflection with 89 Nm 9kg 20 1bs l force applied 10 to 16 mm 318to 518 in Regulator Model TL1Z 86E Starting Circuit N E W PART SPECIFICATIONS W E A R LIMIT No LoadCurrent Draw 70 amps m...

Page 510: ...SPECIAL TOOLS BatteryTester Test battery b 2 Circuit Tester V A C Meter Test any electrical components for voltage resistance or current draw Hand HeldTachometer MeasuringStarter Motor S W d SME2760IIJ4304 YM276and 276D Kinomafo Printed in Japan ...

Page 511: ... Check electrolyte level and specific gravity in each cell Add clean mineral free water if necessav to bring level to bottom of filler neck 3 Connect Battery Tester with red clip to positive terminal and black clip to negative terminal 4 Set switch A on 12 volts and turn selector switch B to VOLTS Check battery voltage It should be 12 4 to 12 8 Volts 5 If voltage is too high turn headlights on for...

Page 512: ...ion Oil pressure lamp e and charge indicator lamp f should glow Temperature indicator lamp should not glow 3 Shift transmission to neutral and turn key switch to START position Do not depressclutch Starter should not operate Temperature indicator lamp should glow 8 4 Depressclutch pedal and start engine With engine n n i n a check indicator lamp cluster All lamps should be off A Tamparsturn C Oil ...

Page 513: ... before work ing on electrical system PREVENTION OF DAMAGE 1 Before connecting battery cables be sure that banery and alternator connections are correct Reverse polarity can cause permanent damage 2 When connectinga booster battery connect Positive terminal of booster battery to positive terminal of battery Then connect negative terminal of booster battery to tractor frame Reverse polarity can cau...

Page 514: ...s included with the tester HAND HELD TACHOMETER 3 The hand held tachometer is used for measuring starter motor speed VOLT OHM AMP METER 2 Circuit Tester is used for testing alternator and for other jobs that require measuring voltage resistance or current flow up to 10amps Alternator test instructions are in Section 10 of this Chapter Also refer t o the operation manual included with the mner For ...

Page 515: ...l wiring wn nections U s e these diagrams and information in the followinggroups for diagnosis A shows locationof all wires on the tractor El shows location of all electrical components F W I IGI RT FRONTPTOSWITCH FRONTPTO HEAD LIGHTILI FLZSHI WA5NINb LAMP LI 3 Z C P S M E Z 7 6 O l t YM276and 276D Kinornoto Pnnted in Jape ...

Page 516: ...H F1 h r Ralw I Indicator Lamp Chsdr Relay J Keyswitch K Buns L Indicator LsmpClvnu M Horn Button N Front PTOSwitch 0 LihtSwitch P B m r y Cable Q Battery R S t M I S Parking LampSwitch T F w B o x U Rquhmr V SanSafm Switrh Ion Clutch Pedal W Hourmmr X PTOShift Lever Safety Switch Y Bsmry Ground Cabk Z Thermostan Plug A A T u r n S i g I Flahic g Wming Lamp VM276and Z76D SME2760121 8705 K nomoro P...

Page 517: ...owing pages illustrate all wiring con A TRACTOR nections Use these diagrams and information in the following groups for diagnosis A shows location of all wires on the tractor 8 shows location of all electrical components HORN BUTTON TURN SINGAL RIGHT START SWlTC BATTERY TURN SIGNAL LEFT 2767030 ...

Page 518: ... i n p H a r m H Flasher Relay I Indicator LampC h d Relay J Keyswitch K B u n w L Indieator LampCluhr M HornButton N FmntPTO Switch 0 LiihtSwitch P B n n v Cable a Battery R Starter S Parking LampSwitch T F u a BOX U Regulator V Stan Safety Switch Ion Clutch Pedal W Hourmmr X F lOShifl LevsrSafetySwitch Y Bmmv Ground Cab Z ThrmDmn Plup AA TvrnS mI FlashingWarning Lamp BB Cleannos L m p CC Tail La...

Page 519: ...r F Pilot L m p ALTERNATOR The alternator is composed of stator coil and magnetic flywheel It contains only generating components and other rectifing com ponents are composed in transistor type regulator REGULATOR The transistor regulator is composed of rectifing and regulating circuits combined diodes and transistors It is not repairable replace if it damaged Keep regulator away from any heat gen...

Page 520: ...240 102 Charging Circuit 15A ALTERNATOR A Pulley Half B Flwh e with Mag C Mwnstr D Stator Coil E Almnumr Bodv sME276011J O4 YM276 and276D Kinornoto Printed in Japan ...

Page 521: ...rotectingfrom 1 Trnrinor for Conooling Gate Cunent E ReguIa101 Banary Cabls Countnsonnaion 1 Tnnrinw for DaeRing Banary Voltape F T O mmr R R R a r G Load The transistor type regulator i s composed of six diodes Q and Q work for controling charging indicator lam one zener diode w o thyristors and two resistors Dland glowing D2 diodes rectify a single phase alternating current gene rated by alterna...

Page 522: ... TOmm R R Resbtam G Load 1 When turning key switch Cl to position 1 AC current 2 From the key switch current also flows through emitter from battery Dl flows through key switch t Emitter base of transistor Q31 Resistor R l t Diode D I base of transistor 0 I Resistor R I Diodes DgI and to ground and to ground Base current also flows in transistor 12 but not the The base current to transistor O Imea...

Page 523: ...t to generate For a short time after the engine starts the battery electricity terminals have a potential difference less than 14 5 V the Zener diode level As a result the transistor Qq is open and Current circulates from alternator A through Diode Dl doesnot pass current instead the current from the Transistor Q Emitter Diode D4 to alternator battery flowsthrough the Q eminer R D to Current also ...

Page 524: ...ountsrranrnction 1 Transistor for DetectingBattery Voltage F TOmRer R R R on G Load Above a certain engine speed the voltage generated by the Current also flow from alternator through diode D J alternator exceeds the battery s terminal voltage The Banery DJ Anode cathode of thyristor SZJ to thyristors S and S2 close to allow current to flow across alternator them In this case the alternator curren...

Page 525: ...Current 1 Tmruinor for Indicator Lamp Relay D Ban 0 D6 Diodesfor Protectingfrom 0 Tramistor for Controlin Gate Cunnt E R pulamr Battory Cable Countaconmtion Q Trarirtor for DetectingEmery Voltage F T O N m r R R R rirtorr G L o d During the battery terminal voltage is lower than the Currentfrom alternator frows as follows Zener diode level 14 to 15 volts the banery is charged as shown in Fig Alter...

Page 526: ... D Diodefor Promctiqfrom 0 Tr rainorfor Cnmoliw Gats Cumnt E R w l r t a Battery C M e Counmrconmction 0 Transinor for DmectingBmary Voltage F T o m R R Resiston G L o d If battery voltage becomes higher than the Zener diode Current flows as follows level 14 to 15 volts the banery is not charged Battery Eminer of transistor 0 t Diode D Zener Diode 2 As Q is open condition because of no current on ...

Page 527: ...atten D D D i d s f o r Protecting from 1 Transistor for Controling G a s Curant E Regulator Battery Cable Counmrconnection I Tranristor for D m c t i n gBanary V o l t w F T O mrtsr R R 2 R l i n o r s G Lox Thyristor has a character that it keeps closed circuit until A t this time 0 is open condition and the lamp keeps off the current flow becomes zero When removed battery the voltage of load be...

Page 528: ...dicator Lamp Relay D EmtW D D6 DiodesforPromctingfrom 1 Transbtor for Conmliq Gate Cunnt E Rwulator Bamry Cablo Counterconnactiom 1 Transistor for DetectingBattay V o l g s F TO starter R R Rerinwr G Laad When S and S are opened voltage to the load does not Base currentflows only in transistor 1 increase and current flows as shown in Fig Therefore this regulator does not allow to damage load Curre...

Page 529: ...y Then connect negative 1 terminal of booster battery to tractor frame Reverse polarity can cause permanentdamage 3 Never run engine with alternator or banery cables disconnected doing so might damage alternator 4 Never short across or grwnd alternator terminals unless specifically recommended Be careful to pre vent grounding alternator wires when disconnected 5 Never attempt to polarize an altern...

Page 530: ...should be 12 4 to 12 8 volts if battery is fully charged 4 If reading is low check for defective battery or poor connec tions a t battery starter or alternator CHECK ALTERNATOR OUTPUT 1 Disconnect alternator wiring harness and connect an AC Volt meter to the two terminals of the connector 2 Run engine at fast idle Open circuit voltages should be at least 30 volts AC If voltage i s low magnets may ...

Page 531: ...ck the electrical continuity betweenall possible pairs of terminals ISeeTablebelow If the continuity for even one pair is not as indicated install a new regulator NOTE Correct readings for all possible pairs does not necessarily guarantee that the regulator is functioning properly Other defects may dictate replacement Tamiml A Blue TerminalB Blwk TerminalC Blue TarmindD G r r n Tnminal E Yellow Te...

Page 532: ...ChargingCircuit 15A YME276Olll 8304 YM276and 276D Kjnomoro Prmted in Jamn ...

Page 533: ...TOR The alternator also called an AC generator i s composed of stator coil and magnetic rotor and rectifier An alternator provides a better output at lower engine speeds and in the heavier models provides a very high output at cruising speeds REGULATOR The regulator is composed o f charging regulator and voltage regulator parts having double set of contact points and magnetic coils Keep regulator ...

Page 534: ...ront Corer B Spacer C Pulley D Fan E Front Bearing F Bearing Retainel G Stator Coils H Rotor Assembly I Stator Housing J Brushes K Rectifier L Rear Bearing M A Terminal N Rear Cover SME2760111 83M YM276 and 2760 Kmomoto PrrnredinJapsn ...

Page 535: ...s of two interlocking soft iron sections and a wire coil wrapped around an iron core When current is passed through the wire coil the rotor becomes an electromagnet The rotating magnetic field induces alternating current in the stator windings This is convened to direct current by six diodes CIin the rectifier bridge A Stsmr Coil B Rotor Coil C Diodes D Rarinor R1 E Chargecontacts F Regulator Cont...

Page 536: ...nal 2 From there current flows through resister R1 to contacts P3 and P4 Current from L terminal flows to contacts PO and P1 3 This allows current to flow through rotor coil enabling alter nator to generate electricity A Stnor Coil B Rotor Coil C Diodes D RsriRs Rl E Charge Contacts F RegulatorContacts G Charge Indicator Light H Kay Switch I 8anery J Alternator K Rmuhtor SME27601118 04 Yhf276 and ...

Page 537: ...ltage becomes higher than battery voltage current flows through alternator A terminal t o battery charging the battery 3 A t the same time voltage at N terminal flows throogh charge relay coil bringing contacts P I and P2 together The charge indicator light goes out A Stator Coil B Rotor Coil C Diodes D Rarkter R1 E Charge Contack F Re uIamr Contace G Charge Indicator Light H Key Switch I Batfary ...

Page 538: ...coil 2 Contact P4 pans from P3 and stays between P3and P5 3 Current to rotor flows through resister R1 causing alternator to decreasegeneratingelectricity A Stator Coil B Rotor Coil C Diodes 0 Resister R1 E Charge contacts F Regulator ConmcS G C h a w Indicator Light H Keyswitch I Batmry J AltBrMtor K Regulstor SME2760171 33W YM276and 276D I nomoro Prbted in Japan ...

Page 539: ...d P5 come together forcing rotor current t o ground through E terminal 3 Current t o rotor is shut off and alternator stops generating electricity 4 Phses 3 and 4 are repeated many times per second t o maintain voltage at proper level A Stamr Coil 0 Rotor Coil C DiDdsr D Radrmr R1 E Charge Contaea F RegulatorContssh G Charge Indicator Light H Key Switch I Banary J AltwMtor K Regulator ...

Page 540: ...Disconnect ground cable first 4 Disconnect battery ground cable before working on electrical system PREVENTION OF DAMAGE 1 Before connecting battery cables be sure that battery and alternator connections are correct Reverse polarity can cause permanent damage 2 When wnnecting a booster battery connect positive termi nal of booster battery to positive terminal of tractor battery Then connect negati...

Page 541: ...unningto recharge battery 4 Test battery a s instructed in Section 05 5 Check for a slow drain on battery With all switches off dis connect battery ground cable and connect a sensitive ammeter between cable and battery post If current exceeds 100 milliamps see where it is going Unplug connectors until you locatethe circuit then try to find the problem 6 Check entire charging circuit for a poor con...

Page 542: ... A I Probe B I Probe C rTerminal D N F Connector E E Terminal VOLTAGE CHECK TO ROTOR 1 Disconnect connector from back of alternator 2 Connect COM 1 probe to E terminal and connect V a A probe to F terminal 3 Set selector switch to 30 VOLTS 4 Turn key switch on Do not start engine Observe voltmeter A I Probe B I Pmbe C r Terminal D N F connactor E E Terminal If reading is at least 12 volts check al...

Page 543: ...f not alternator is defective See Section 10 of Chapter 40 for repair instruction Perform this test quickly to prevent possible damage to alternator Bypassing Voltage Regulator 1 Disconnectconnector from N and F terminals 2 Attach a jumper wire to F terminal making sure it does not touch alternator case An easy method to use a jumper wire with a female blade connector on one end A I Probe D N F Co...

Page 544: ... rpm touch other end of jumper wire to A terminal and observe output on meter Perform this test quickly to prevent possible damage to alternator If output i s less than 35 amps alternator is defective Refer to Section 10of Chapter for repair instructions If alternator produces at least 35 amps in this test but does not work properly in normal operation voltage regulator is probably defective SMF27...

Page 545: ... for continuity between the following terminals Wire Colors Terminal N White Tsrmirula A White with redsnipe Terminal Y Yellow T e r m i d E Blac Terminal F White with black stripe Terminal IG Blue Some wire colors change at connestor CONTINUITY CHECKS Terminal E toground continuity Terminal L to Terminal E continuity Terminal IC to Terminal F continuity Terminal N to Terminal E 20 ohms approx If ...

Page 546: ...240 11 14 Charging Circuit 35A SME2760171a M YM276and 2760 Kinomoro Prinred in Japan ...

Page 547: ... winding D to ground Current through windings engages solenoid plunger E which C pushes pinion gear into mesh with ring gear and closes main contacts IF This permits banery current to flow to field coils G and through brushes H to armature 1 The armature begins to rotate at high speed Gear train reduces output speed by one third At this time plunger is held in by force of hold in coil only since p...

Page 548: ...B Solenoid clicks but starting motor does not operate C Starting motor runs but does not crank engine D Startingmotor cranks engine slowly or erratically Determine which of the four situations applies and diagnose problem as instructed for those symptoms Use jumper cable to test starter Refer to the figure for each mlenoid terminals CAUTION Be positive that transmission is in neutral A before wins...

Page 549: ... are good test solenoid as instructed in Section 15of Chapter 40 Solenoid Clicks but Starting Motor Does Not Operate Loose connections at battery or solenoid switch terminals B and M Faulty pinion gear or ring gear Worn brushes weaken brush springs or dirty commutator Faulty field coil Faulty or damaged main contacts in solenoid Tighten and Replace Battery Cable as necessary Replace Replace brushe...

Page 550: ...Charge battery Inside problem in starter Repair or replace as necessary a Brushes b Windings are short circuited or open circuited C Pole shoes are dragging on armature Ringgear is deffective or binding Repair 1 Make sure all battery cable connections are clean and tight Low voltage caused by a poor connection is a common problem 2 Test batteries as instructed on page 1 Section 05 Recharge or repl...

Page 551: ...l before urlng jumper wire Unless you want engine to start plxe throttle lever in STOP position A Banay E Rear PTO B StartingMotor Start Safety Switch C Clutch Pedal F K y Switch Start Safely Switch D Front PTO Start Safely Switch n 3 Connect a jumper wire to battery terminal on starting motor Briefly touch jumper wire to switch terminal Starting motor should engage If it does not problem is in so...

Page 552: ...uit n CIRCUIT TESTS Continued 6 If necessary to remove and check key switch test for continuify between the following terminals Thermostart position B to R1 B to RZ Bto BR On position B to BR Start position B to BR B to C ...

Page 553: ...n one circuit fail at the same time a fuse may have blown DO NOT anempt to correct lighting arcuit problems by inltalling a larger fuse a s it may cause additional damage to the circuit If a fuse blows turn off the circuit Remove fuse block cover and pull out blown fuse Install new fuse of equal amp capacity A Indicator Clunor B FlzshingNYarningLights C Horn and FrontPTO D Headlightr m d Work Ligh...

Page 554: ...ectly inspect and test flasher relay and switch a s instr ictedon page 240 20 3 FLASHING WARNING AND TURN SIGNAL SWITCH TESTING 1 Remove access panel from panel box Disconnect connector B from main wiring 2 Use an ohmmeter to check for continuity The following chartgives continuity checks for the switch The switch can be pulled to switch on for flashing warning lights and be turned to flash the on...

Page 555: ...R TESTING To test flasher on tractors without turn signals 1 Remove acces panel below instrument panel 2 Disconnectwires B and Cfrom flasher relay 3 Pull boot back on wire B and C 4 Touch the two exposed terminals together With key switch ON and flashing warning turn signal light switch is pulled position the lamps should glow steadily 5 If flashing warning turn signal lamps do not glow check for ...

Page 556: ...r 3 Remove nut holding switch to panel Remove switch Light switch should have continuity between connector terminals listed below SWITCH POSITION CONTINUITY BETWEEN CONNECTOR TERMINAL B OFF NONE 1st PulledPosition S m d H 2nd Pulled Poetion H B To key Switch S To High Beam HeadlightsandWork Light H T o Low Beam Headlight SME276011l B304 rMZ76and 2760 Xinornoto Prinred in Japan ...

Page 557: ...s ON with engine not running If they don t glow check for a blown fuse If fuse i s OK check continuity of hot wire between fuse holder and 6 pin connector terminal A Repair as necessary A N o r used D To 0lL Send r B TO R e g u l a t o r E Hot Laad C TO Ground F T o TEMP Ssnder Temperature LightTests 1 Disconnectwire from oil pressure sender 2 With key switch ON touch wire to a good ground If OIL ...

Page 558: ...ntinuity of wire between sender and oil light socket with an ohmmeter or test light Repair a s necessary 4 I f light still does not glow replace bulb and repeat step 2 See Bulb Re lacement Indicator Lights On With Engine Running If any light comes on while engine is running stop engine im mediately and correct problem If OIL light comes on check wiring for shorts Ifwiring is OK install a known goo...

Page 559: ...ngWarning turn Signal Lamps 1 Remove lens by removingthress screws 2 Remove bulb by pressing down and turning counterclockwise 3 Press new bulb in turning clockwise Replace lens WORK LIGHT Optional 1 Remove rear cover by removing three screws 2 Remove reflector and lens from housing Remove lens from reflector 3 Remove bulb by pressing down and turning counterclockwise 4 Press new bulb in turning c...

Page 560: ... C LampHolder 3 Remove bulb by pressingdown and turning counterclockwise 4 Press new bulb in turning clockwise 5 Insert lamp holder and turn clockwise to lock the holder to cluster 6 Be sure bulbs are under correct lenses OIL and CHG lamps should glow with key switch ON TEMP lamps should glow with key switch at START position 7 Installaccess panel with five screws A Bulb B Bulb Holder SME2760 1183...

Page 561: ...IONS AND SPECIAL TOOLS 05 CLUTCH AND TRANSMISSION OPERATION 10 POWER SHIFT TRANSMISSION 20 REAR PTO 30 FINAL DRIVE AND DIFFERENTIAL 40 FRONT WHEEL DRIVE OPERATION 50 TROUBLE SHOOTING THE POWER TRAIN SMEZ76011143M Y M Z S Z C Kinornaro Printed in Japan ...

Page 562: ......

Page 563: ...ea 2B 3cmZ 4 38sq in Facing Copper Sintered Alloy Clutch Static Torque 274 1Nrn 27 97kgm 202 3ft lb Clutch OynarnicTorque 182 8Nm 18 65kgm 134 9tt lb n ower Shift Pump Type Internal Gear Drive Driven by Clutch Drive Shaft Main Drive Shaft Capacity at 260D rpm 12 4Wmin 3 28GPM Clutch Operating Pressure Main Relief Valve Lubricating Oil Pressure 2nd Relief Valve 1500kPa 15kg cmz 213 psi 40kPa 0 4kg ...

Page 564: ...00 to 1 Front Drive Shaft Gear to BevelPinion Reduction Ratio 1 577 to 1 Front Drive Final Gear toPinionReduction Ratio Front Drive Total Reduction Ratio 15 736 to 1 from rear differential drive shaft Front Axle to Rear Axle Speed Ratio 1 638 to 1 Front Wheel Pre RunPercent 0 0 and 6 Front Drive Oil Reservoir Capacity 1 58 US gal 16 0 Q Shift LeversOperating Force ITEM NEW PART SPECIFICATIONS Clut...

Page 565: ...cking shift lever and pedal operating force Hydraulic PressureGauge Kit TOL 91000000 Checking the following pressure Power shin system pressure Power shift lubricating pressure A 0 250 kgkn B 0 35 kglcm C 0 5 kglm D Hose with Quick Coupler E Adapten with Qutk Coupler SME276OII B304 YM276 and 276D Kinmoto Printed in J w n ...

Page 566: ...250004 Specifications and Special Tools POWER FLOW DIAGRAM PTO ENGINE ...

Page 567: ...ovide one reverse and three forward speeds control without clutching The wet disk clutches and plates are lubricated by splash and pressurized transmission oil The individual pump IV for clutch operation is driven by main drive shaft K The clutdr has a single dry disk which also operates the PTO The PTO is transmission driven and a collar shift engages or disengages the PTO gear train The brakes S...

Page 568: ...tch Housing The clutch assembly is attached to the rear of the engine flywheel The dry disk clutch provides a positive means of mechanicallyengagingand disengagingpower flow from the engine to the transmission and PTO The clutch also acts as a shock absorber that protects the transmission and engine from excessive load Torsional springs 0 in the clutch disk dampen the transmission of torque by all...

Page 569: ...ne flywheel The clutch is disengaged ENGAGING THE CLUTCH Releasing the clutch pedal G allows the return springs F to move the release bearing assembly M and pedal rearward The diaphragm spring fingers ID also move of the pressure plate P to move it against the clutch disk IN This clamps the disk between the friction surface of the engine flywheel and the pressure plate PI The disk has friction fac...

Page 570: ...250 054 Clutch and Transmission Operation SME276011J8304 YM276and 2760 Kmomoro Prinred in Japan ...

Page 571: ...ur clutches Power shifting part permit three forward and one reverse speeds without foot clutching in each speed range Sliding gear part permit speed ranges Forward speeds and rear ward speeds are obtained by these two components The engine power is transmitted from main drive shaft through power shift pump A to main shaft 0 The power from main gears K on main shaft is transmitted to the constantm...

Page 572: ...ools the power shift clutcher and plates Oil is drawn from the transmission case through suction tube and suction screen A The oil flow after passing screen is divided to internal gear pump BIand to hydraulic pump through hydraulic oil filter Cartridge type The power shift control system consists of the following components power shift pump El center plate C regulator care D oiI manifold I power s...

Page 573: ...Cover C Pump Housing D Pump Drive Gear E Pump Outer Gear F Oil Manifold G Inertia Brake REGULATOR CASE The regulator case consists of valve spool A 2nd relief valve 61 main relief valve I C I and delay relief valve Dl and is located on the upper side of transmission case A Valve Spool B 2nd Relief Valve C Main Relief Valve D Delay Relief Valve E R gulatar Case SME2760III8304 YM276 and 2760 1863029...

Page 574: ...Each positions is connected t o the clutch piston To 1 s Clutch Piston To 2nd Clutch Piston r 71To 3rd Clutch Pinon To Reverse Clutch Pinon 2nd Relief Valve The second relief valve is located o n the transmission case facing t o regulator case lubricating oil gallery The valve regulates lubricating oil pressure for clutch packs m m r u r i r e d Oil T O Rerervoir transminian A 2nd Relief Valve B V...

Page 575: ... valve t o the rear ward against outer spring El The same pressure oil is sprayed through small orifice C into DRV sleeve t o move DRV body A1 to the foreward against outer spring El The moving speed to DRV body is not fast because of orifice This time lag permit main relief valve t o increase gradually the system pressure for smooth power connection Pr rized Oil On the inswsingl To lubriration Wh...

Page 576: ...rd Clutsh PaRon To ReverseClutch Panon To Regulator Caw TOLubrtcatton POWER SHIFT COMPONENTS Continued CENTER PLATE OIL GALLERY PLATE AND OIL MANIFOLD A Center Plate B POW rShift Pump C Oil Manifold D Power Shift ClutmShail SME27601118304 YM276and 276D Kinornoto Printed in Japan ...

Page 577: ...e selected clutch pack The shaft has six longitudinal holes The two holes are drilled for lubrication of clutch packs and other four holes for each clutch piston R 1 2 and 3 I71 To 1st Clutch P ston I21 To 2nd Clutch Pinon I31 1 To 3rd Clutch Pinon IR To ReverrsClutch Piston LI LubricatingOil A SME2760lllg104 YM276and 276D Kinomora Printed in Japan ...

Page 578: ... separator springs IG between steel plates to give a even space for each clutch disk to eliminate clutch draging A Roverre Clutch Pack E Clutch Disks I Cylinder M Power Shift Clutch Shaft B In Clutch Pack F St 1 Plates J Piston N Needle C 2nd Clutch P G Separator Sprina K PistonReturn Spring D 3rd Clutch Pack H BackingPlate L Clutch HubandGear SME1800111 8304 Kinornoto Prinfed in Japan YM276and 27...

Page 579: ...Position A Tranmirrion Oil Sump C Power Shih Pump B SuctionScraen D Valve Spool Strainer E 2nd Relief Valve P r e s s u r i z e d Oil To 1 sclutch piston1 P r w r e FreeOil Lubricating Oil tT JTo Sump F Main Relief Valve I Power Shin Clutch Shah G Orifice J Clutch Pack H Deb Relief Valve IDRVI K Inertia Brake ...

Page 580: ...250 10 10 Power Shift Transmission HYDRAULIC CONTROL SYSTEM Continued NEUTRAL POSITION 3Prewre Free Oil SME2760111830d YM276and 276D K nomora Prinrrd in Japan ...

Page 581: ...Power Shift Transmission 250 10 11 1st SPEED POSITION ...

Page 582: ...250 10 12 Power Shift Transmission HYDRAULIC CONTROL SYSTEM Continued 2nd SPEED POSITION Pr6suriz d Oil 0 Pressure Free Oil ...

Page 583: ...Power Shift Transmission 250 10 13 3rd SPEED POSITION PmsurrzBd Oil 0 Pressure Free 0 1 1 SME276011J8304 VMZ76and 276D nomofo Prfnred in Japan ...

Page 584: ...250 10 14 Power Shift Transmission HYDRAULIC CONTROL SYSTEM Continued REVERSE SPEED POSITION Pr rhsd Oil 3PrssrureFree Oil 1863029A SME27601116304 YM276andZ760 Kioomaro Printed in Japan ...

Page 585: ...the engine flows to main gears clutch pack and to counter gear Ll or differential drive shaft M Refer to power flow arrows on page 250 10 16 250 10 17 for 2nd and 3rd speed ranges There is a reverse idle gear Not illustrated between the gear G and 01 When shifting power shift lever to reverse position the reverse clutch is engaged and power flows to the counter gear L through reverse idle gear rev...

Page 586: ...250 10 16 Power Shift Transmission POWER SHIFTING POWER FLOW Continued 1st SPEED POSITION 2267061A 2nd SPEED POSITION SME216011 8304 YM276and 276D Kinomoro Prinfed in a p a n ...

Page 587: ...Power Shift Transmission 250 10 17 3rd SPEED POSITION A REVERSE SPEED POSITION SME27601716304 YM276and 276D Kinomoro Printed in Japan ...

Page 588: ... one of parallel shafts has counter C and power flows to creep 1st and 2nd ranges through cluster gear on it Differential drive shaft LI has asliding this counter shaft gear D gear H K Creep gear shaft N provides a creep speed ranges Sliding spur gears H K provide three speed 3rd range is provided by meshing gear G of power shift ranges Since sliding gear speed does not synchronize clutch shaft an...

Page 589: ...Power Shift Transmission 250 10 19 CREEP SPEED RANGE 1st SPEED RANGE ...

Page 590: ...250 10 20 Power Shift Transmission RANGE SHIFTING POWER FLOW Continued 2nd SPEED RANGE 3rd SPEED RANGE SME27601718304 YM276and 2760 Kinomoro Printed in JaP ...

Page 591: ...ent is not administered immediately Preliminary Checks If an operator complains of transmissionmalfunction ask the operator about all related operations For ALL transmission malfunctions before any further diagnosis is attempted FIRST 1 Check oil level filter and condition and correct if necessary Also look for signs which may indicate F a problem area such as a burned odor metal or packing fragme...

Page 592: ...ing pressure install the plug IPT 118 with seal tape Do not wrap tape on plug head to avoid the tape trashes plug relief valve Testing LubricatingPressure To check lubricating oil pressure use the following proce dure 1 Start engine and operate at 1500 rpm until transmis sion oil reaches operating temperature 40 50 104 122OF 2 Stop engine and place power shift lever and range shift lever in neutra...

Page 593: ...ystem pressure1ir low at all speed positions Stuck main relief valve or DRV valve Delay relief C e l Clean valves or replace if necessary fl Final reduction gearr 2 TRACTOR DOES NOT MOVE WHEN POWER SHIFT LEVER IN A CERTAIN SPEED POSITION a1 Sliding gears bl Idlegear CI Counter gearr dl Reduction gears el Differential e a r s Main relief valve pressure lrystem prersurel is correct at all speed posi...

Page 594: ...rn spring broken o r unhooked Replace or hook spring Clutch piston doer not Replacecylinder refurn 1 Worn or damagedpiston O ring Replace O ring Use Transmirrion Hydraulic Oil or its equivalent 1 Warm up hydraulic syrtem 2 Use Transmission Hydraulic Oil heater n inn l Clean piston Worn or damagedpiston O ringr Replace O ring Worn brake dirk Replacebrake disk I SME27601118304 YMZ76and Z76D Kjnomoto...

Page 595: ... same screen ilt a transmission case time which the transmission oil is replaced Adjust main relief valve 1500 to 1600 kPa 115 to 16 kglem 1213 to 227 psi S t u c r w Clean main reliei valve and check system preuure I Replacepump I h 6 ZNDRELIEF VALVE PRESSURE LUBRICATING PRESSURE IS TOO LOW BUT MAIN RELIEF VALVE PRESSURE IS CORRECT Replace valve or reat I SMEZ76O ll8304 YM276and 276D Kinornoto Pr...

Page 596: ...250 10 26 Power Shift Transmission SME27601118304 YM276and 276D Xmomoro Prinred in Japan ...

Page 597: ...coupled to the transmis sion main shaft Therefore whenever the engine clutch is engaged the PTO connecting shaft turns in the same direction as the main shaft Counterclockwise The PTO connecting shaft Al transmits power to the PTO pinion shaft 0 The rear pinion gear C on the pinion shaft meshes with the PTO gear IH on the PTO shaft IF The PTO shift arm moves rearward so that shift fork would be pu...

Page 598: ...250 20 2 Rear PTO DUAL SPEED PTO Continued 540 RPM 2767024A 1000 RPM ...

Page 599: ...speeds This could occur during engine clutch disengagement or sudden engine deceleration particularly when operating a heavy PTO driven imple ment As soon as the speed of PTO shaft clutch claw and PTO sleeve claw equalizes the clutch spring forces the rear clutch claw forward on the shaft to engage with the PTO shaft clutch claw LUBRICATION P Since the PTO pinion shaft turns whenever the engine cl...

Page 600: ...250 20 4 Rear PTO r SME276011J83M Kinomoro Prinred in Jamn YM276and 2760 ...

Page 601: ...ill pull meshes with the final reduction gear D at the inner end its own load of the axle shaft E The differential housing is located in the center compart Since t h e final reduction gear is splined to the axle shaft ment of the transmission the axle rotates a t the speed reduction created by the final drive gear Power from the spiral bevel pinion to the differential carrier ring gear Bl flows th...

Page 602: ...d rotate at a same speed When the drive wheels regain equal traction the lock will disengage automatically since the shift fork has loaded spring t o release the torsional forces The lock can be engaged on the go It should be dis engaged before turning the tractor since both rear wheels are locked together at the same speed A Lock Shift Fa t 3 Lock Slider LUBRICATION When the differential ring gea...

Page 603: ...inion to ON position of front wheel drive shift arm El M and this upper bevel pinion is on lower bevel pinion pushes sliding gear C forward to engage front wheel 0 60th upper and lower bevel pinion rotate with needle drive bearingsover spindle shaft NI This gear which is splined to front wheel drive PTO shaft Lower bevel pinion meshes with final reduction gear PI D rotates propeller shaft GI throu...

Page 604: ... use o f shims I between the bearing housing I and front differential housing The slotted retaining nut B is adjusted for pre load of roller bearings H An oil seal F and O ring E seal the driveshaft and bearing housing A Front Differential Drive Shah B Retaining Nut C LOE Warher D Seal Collar E O ring F Oil Seal G Spacer Ring H Taper Roller Bearings I Shims J Bearing Housing SME276011183M VM276and...

Page 605: ...lutch pedal free play If incorrect adjust to 15 to 25 mm 0 591 to 1 in ISOLATING THE PROBLEM TO CLUTCH HOUSING TRANSMISSION PTO FINAL DRIVE OR FRONT WHEEL DRlVE The following procedure assumes noise accompanies a drive malfunction If noise is minimum but a power transmission problem exists use of a mechanic s stethoscope may help Otherwise use the procedure noting all operating characteristics to ...

Page 606: ... or counter shaft bearings In the reverse clutch gear bearings or clutch shaft hearing In the reverse idle shaft bearings or idle gear e Change range shift lever in the 2nd 3rd andcreep speed position and follow the above procedures t o make sure which counter gear broken f If the noise i s Located the rear part of the trans mission case the noise comes from Final reduction pinion or gear broken S...

Page 607: ... on shaft Operating levers binding Pressure plate binding on operating bolts Pedalarrnshaft or linkage sticking Clutch dirtv Excessivetransmissionbacklash Clutch Squeak Pilot bushing needslubrication Release bearing assembly needs lubrication Failed release bearing Clutch Does Not Release Clutch sticking to flywheel SUGGESTED REMEDY Clean or replace disk Replace disk Replace Replace Replace Increa...

Page 608: ...eel loose Clutch shaft bent or damaged Worn on damaged disk or pressure plate Dirty clutch Improper assembly Clutch spring worn or damaged Return springs worn or damaged Worn or damagedpedal or shaft Release bearing sleeve seized Yoke armshaft spring pin sheared o r missing Worn shaft Yoke armshaft spring pin sheared or missing Broken or missing return spring Clutch shaft bent Flywheel not seated ...

Page 609: ...aged Shifter worn or damaged Fork bent worn or hraken Damaged gears Gearsassembled improperly or damaged Two Speeds Engage Missingor improperly assembled Together interlock plate Damagedgears Improper gear or shifter arsembly Worn or damagedshifters Will Not Stay In Gear Shifter detent missing or weak spring 9 Damaged gears or bearings Bent or worn shiiter fork Oil level low ordirty oil r Shafts o...

Page 610: ...e out of adjustment Adjust shift linkage Tractor Will Not Move Low system pressure Test system pressure In Any Gear Shift linkageunhooked bent orbroken See shifter repair Range shift transmissionbroken Repair transmission Low oil level Add oil Clogged oil strainer Suction screen Clean strainer TransmissionCreeps Low the pressure and normal system Test system pressure and test pressure iresults in ...

Page 611: ...t fully depressed PTO slidinggear or shaft spline damaged PTO Will Not Operate Improper clutch adjustment Worn or damaged gear or collar Damaged shifter Excessive implement load onshaft One way clutch claws or spring broken PTO Will Not Stay Improper assembly One way clutch worn or damaged One way clutch assembled wrong or spring weak or broken PTOshaft or collar splines worn Damgedgear or collar ...

Page 612: ...250 50 1 0 Trouble Shooting the Power Train SME27601118JM YM276and276D Kinomora Prtnwd d Japan ...

Page 613: ...00 SPECIFICATIONS AND SPECIAL TOOLS 05 STEERING 15 BRAKES ...

Page 614: ......

Page 615: ...teering Wheel Free Travel Brakes ITEM Brake Pedal Free Travel NEW PART SPECIFICATINS 25 40 rnm 0 984 1 575 in WEAR LIMIT 50 mm 1 969 in NEW PART SPECIFICATIONS WEAR LIMIT 20 30 mrn 50 mm 1 969in 0 787 1 181 in SMF2760171BjrW YM276and Z76D Kinornaro Printed in J a n a p a n ...

Page 616: ...260 00 2 Specificationsand Special Tools SME276D11183M YM276anndZ76D Kinornoto Primed in Japan ...

Page 617: ... developed by the operator is multipled through site end which accounts for the name recirculating ball gears then is transmitted t o the wheel spindle assembly via worm and nut linkage One side of t h e nut has gear teeth cut into it The pitman The type of gear box is recirculating ball worm and nut arm sector shaft El gear teeth engage the nutteeth When This type use a nut 6 that rides up and do...

Page 618: ... the gear teeth on the nut are i n mesh with the gear teeth front wheels on the senor shaft E therefore a s the ball nut moves upward the sector shaft is rotated moving the pitman arm The steering shaft A is supported by a bearing a t the K which is connected to the drag rod turning the wheels bottom of the steering column I and one in the bottom to the right of the steering sector IG HI Turning t...

Page 619: ... page 10 05 14 Adjust Inflate correctly Adjust front alignment Correct or replace Add grease Reducefront weight by adding rear counter weight Replace ball nut assemblywith shaft inflate correctly Install correct tires Inspect front bevel gear train and repair as required Excessivebacklash in steering Adjust sector shaft adjusting screw gear box Worn ball joints of tie rod or drag rod Replace Cente...

Page 620: ...260 05 4 Steering ...

Page 621: ...me amount of braking force is produced for both forward and reverse motion The parking brake consists of a locking device coupled to the foot pedal G Return Springs H Final PinionShaft The left and right brakes operate independently of each other of can be locked together to allow uniform braking action Pressure against the foot pedals is transferred through the braka rod to the brake lever 0 Move...

Page 622: ...ir See page 60 156 Clean linings with chlorothane Replace See page 60 156 Adjust See page 6005 5 Different amount of pedal play Adjust See 60 15 5 from right to left wheel Oil soaked one side linings Clean linings and repail Faulty brake shoe springs Replace See 60 1 5 8 Excessive or uneven brake shoe wear Replace See page 60 15 8 Unever brake drum wear Replace See page M 15 8 Brake shaft rod worn...

Page 623: ...HYDRAULIC OPERATION AND TESTS 270 00 SPECIFICATIONS AND SPECIAL TOOLS 05 HYDRAULIC SYSTEM OPERATION 10 HYDRAULIC LIFT OPERATION 20 HYDRAULIC SYSTEM TESTS AND DIAGNOSIS ...

Page 624: ......

Page 625: ...ure Relief Valve Setting Safety Valve Surge Relief Valve Setting 14 7 15 7 MPa 150 160kg cm2 2133 2275 psi 16 7 18 6 MPa 170 190kg cm2 2417 2702 psi Hydraulic Lift Cycle Time 2seconds at 2600 rpm Hydraulic Lifting Capacity At lower link end 650 kg 1433 lbs At 24 in behind lower link end ISAE OECD 630 kg 1389 lbr Hydraulic Cylinder Leakage during 5 minutes Lessthan 20 rnm with 536 kg load on 610 mr...

Page 626: ... HydraulicPressure Gauge Kit TOL 91000000 Pressure checking Hydraulic Lift System Engine LubricationSystem A 0 2Mkplcm2 8 0 35 k 1 cm1 C 0 5 kg cm2 D Hose with auisk Coupler E Adapters with chid Coupler SME276017143W YM276and 276D Kinomofo Prinkxi i n J w n ...

Page 627: ...transmission case filters the hydraulic oil A replaceable paper cartridge type filter located on the hydraulic inlet line further filters the hydraulic oil filtered bv the mesh screen The hydraulic pump D draws oil through the two filters from the reservoir The pump then feeds oil through the hydraulic cylinder head to the hydraulic control valve E A pressure relief valve Fl located in the hydraul...

Page 628: ...r a m Line G HVdraulie Cylinder H d H Side COW I HVdnulicCylindercaa J Auxilia Ouuet K Auxilialy Inlet L Main Relief Valve M Control valve N Slow Return Stop Valve 0 Hvdrwlic Pinon P Safety Valve Q Auxiliary ounstfor Sinple Action Cylinder R Pmsmra FIB Oil S Pmaurized oil T Trappsd Oil U Safety Value Pressure C h d Port ...

Page 629: ...es described below operate in the same way The tractor has two relief valves a main relief valve located in the hydraulic cylinder head and a safety relief valve surge relief valve also located in the cylinder head The main relief valve releases at 14 7 15 7 MPa 150 160 kg cm2 2133 2275 psi The safety relief valve releases at 16 7 18 6 MPa 170 190 kg cm2 2417 2702 psi Thevalves if opened return oi...

Page 630: ...controls the rate of oil flowing from the hydraulic cylinder to the reservoir and by turning the knob clockwise completely until it stops the hydraulic cylinder can be isolated from the hydraulic system By turning the knob counterclockwise the valve opens and allows faster oil flow which lowers the lift arm faster The stop valve may beused to hold the lift arms in raised position by first setting ...

Page 631: ... inlet and outlet chambers As the drive shaft B rotates the gear attached to it which in turn rotates the other one the grooves in the gear teeth trap hydraulic fluid and carry it around to the outlet chamber Once there the hydraulic fluid has nowhere to go but through the outlet port It cannot go full circle because the gear teeth mesh with the opposing gear Each turn of the gears brings more flu...

Page 632: ...nue to extend until the piston reaches the end of its stroke or the control lever is returned manually to the neutral position 3 Retracting t h e Cylinder Move the lever forward The cylinder will continue to retract until the piston reaches the end of its stroke or the control lever i s returned manually to the neutral position The 3 point hich cannot be used when the tractor s control lever is be...

Page 633: ...ylinders When using these ports for implements passage in the hydraulic cylinder head outlet A Pump side and Inlet ports B Hydraulic lift side must be blocked with the headless plug C 11 4 18 NPTFI supplied with the implement A CAUTION Always remove this plug C when disconnecting the mplementshydraulic lines from the outlet ports A leavingit in place may damage the hydraulic pump CAUTION The volum...

Page 634: ...f lift arm movement Check valve 1 i s pushed by rod ID allowing oil to return from the cylinder to the resewoir when lift arm is lowered For valve positions for neutral and raising and lowering of lift arm see chapter 270 10 A Main S w o l 8 Unload Valve C Flow Control Valve D Push Rod E Check Valve F Load Check Vaivs G K Oil Return Outlets L Oil Inlet from Pump M Oil Port trornlto Cylinds SME2760...

Page 635: ...excessive pressure caured by a jolt J In the raise position the control valve allows to the equipment The latter allows the operator to isolate pressurized hydraulic fluid t o enter the cylinder HI the hydraulic lift from the hydraulic system in any pushing the piston rod which rotates the lifting shaft BI position desired and raises the lift arms C In the lower position the valve J simply relieve...

Page 636: ...ic fluid behind the unload valve 0 lows through the groove in the spool to return to the trammission case through the hole TA in the top of the valve housing Ar the pressurei s relieved the unload valve 0 closes i t s port to the transmission case LTB routing the still pressurized hydraulic fluid through the flow control valve C and the opening TC back t o the transmission case The load check valv...

Page 637: ...M B Lifting Shaft C Lift Arm D Cylinder Head E Slaw Return Stop Valve F Main Relief Valve G Safely Valve H HydraulicCylinder Care I PoritionControl Lever J Control Valve K P ure Line L Auxiliary Outlet lnlet Plug M OutIst Plug N Position Faedack Rcd 0 Draft Control Lever ...

Page 638: ...n the pressures on the valve equalize some of the fluid is allowed to escape through a port TCI a n d flow back into the transmission C Flow Contml Valve case This division of the flow from the purnp reduces F Load Check Valve TC T o Raawoir the speed of cylinder operation slowing the speed at which I Prarum Fm Oil the lift arms raise and thus permitting finer implement P dzd Oil control Even thou...

Page 639: ...linder Care I Position Control Lever J Control Valve K PI re Line L Auxiliary Outletllnlet Plug M Outlet Plug N Position Feedack Rod 0 Draft Control Lever P Draft Sensing Spring Q Draft Feedback Rod P r e s s u r i z e d Oil m P r e 5 u m Free Oil T Return Oil a n p p s d Oil SLOW RAISE OIL FLOW IN HYDRAULIC SYSTEM SME276011183M Kinomoro Printed in Japan VM276and 2760 ...

Page 640: ... v A Main wool draulic pressure then activates the unload valve 6 closing B Unloal lave off ik return port With maximum pump pressure now on F Load Cheh Valve the load check valve F the valve is forced open and 0 PrarrureFree Oil Pmmurized Oil hydraulic fluid is allowed t o enter the cylinder This fluid forces the piston to the rear raising the lift arms SMEZ76OlllSUO4 YM276and 276D Kinomoco Prinr...

Page 641: ...Main Relief Valve G Safety Valve H HydraulicCylinder Case I Position Control L m r J Control Valve K P re Line L Auxiliary Outletllnlet Plug M Outlet Plug N Position Feedback Rod 0 Draft Control Laver P Draftsenring Spring 0 Draft Feedback Rod PressurizedOil C B Prerjura Free oil 0 Return Oil I Trapped oil SME276Olll4304 Kinmoto Princedin Japan YM276and 276D ...

Page 642: ... oil LOWER OIL FLOW IN CONTROL VALVE Shifting the control lever forward pulls the main spool IAI out of the control valve housing and presses the push rod against the mechanical check valve E This position of the main spool allows the pressurized fluid behind the unload valve 9 to flow through the return port TB Similar1y the pressurized fluid from the pump flows back into thetransmission case thr...

Page 643: ...Head E Slow ReNm Stop Valve F Main Relief Valve G Safety Valve H Hydraulic Cylinder Cars I Position Control Laver J Contml Valve K Pr re Line L Auxiliary Outlefflnlet Plug M Outlet Plug N Position Fedback Rod 0 DraftControl Lew P Draft Sawing Spring Q Draw Feedback Rod 0 PressurizedOil Pressure Freeoil Return Oil T r a p Oil ...

Page 644: ...r lowered to correspond with the settings of the position control lever J and the draft control lever H1 When the draft force becomes too great for the draft control lever setting the control valve is switched into the raise position feeding hydraulic fluid to the hydraulic cylinder 1 raising the lift arms F thus the implement As the implement is raised the draft force is correspondingly reduced u...

Page 645: ...draft is large If the draft control lever A is placed in the rear position the controlled draft is small 2 Upper Link Location The degree of sensitivity is determined by positioning the upper link in the upper or lower hole of the sensing spring bracket For maximum sensitivity place upper link in lower hole Bl For minimum sensitivity place upper link in top hole A When the upper link is set in the...

Page 646: ...er 0 1in the Draft Control range in the guide the draft feedback mds are moved close to the control valve main spool This allows maximum sensitivity between the sensingspring P Iand thecontml valve Always unlatch t h e upper link hinge lock plate when using draft control When a load is applied to the upper link the force compresses the sensing spring P pushingthe draft feedback rods 0 forward The ...

Page 647: ...in spool to the neutral position This allows the lift arms t o lower by draining the trapped oil from the hydraulic cylinder A Hydraulic Pinon B Lifting Shaft C Lift Arm D Cylinder Head E Slow Return Stop Valve F Main Relief Valve G Fafew Valve W Hydraulic Cylinder Care I Position Control Lever J Control Valve K Pressure Line L Auxiliary Outlst lnlet Plug M Outlet Plug N Position Feedbac d 0 Drafi...

Page 648: ...270 10 14 Hydraulic Lift Operation SME2760111 81D2 YM276and 2760 Kinomom PIinted in Japan ...

Page 649: ...nary Checks on page 270 20 3 SAFETY INSTRUCTIONS CAUTION Escapingfluid under pressurecan have sufficient A force to penertrate the skin causing serious personal injury Before disconnecting lines be wre to relieve all pressure Before applying pressure to system be sure all connections are tight and that pipes and hoses are not damaged Fluid escaping from a very small hole can be almost invisible Us...

Page 650: ...Filter H Control Valve D HydraulicPurnp I MainSpaol E Filmr Bypan Valve J Unload Valve K Flow Control Valve P Slow Return and Stop Valve L Push Rod 0 Safety Valve M Check Valve R Hydraulic Cylinder N L a d C b s k Valve S Auxiliav Inlet ill 0 Auxiliw Ovtlst 1 T A u x i l i vOutlet Ill SME2760111 9304 YMZ76snd Z76D Kimrnoro Piinred mJapan ...

Page 651: ...n Condition Cause Milky Water in Oil Dirty Filter Failure Metal Particles Mechanical Failure Discoloredor Burned Odor Overheated Oil Check Hydraulic Oil Level Condition Cause Oil level low Improper Fill External Leakage Use of Auxiliary Cylinder Ask the Operator How is machineperforming When does it malfunction What is machineapplication Check Maintenance Records For HYDRAULIC PUMP FLOW TEST 270 2...

Page 652: ...0 10 3 1 Move control lever forward to lower lift arms 2 Turn stop valve clockwise to close stop valve 3 Adjust engine speed to 1500 rpm 4 Move control lever rearward through the neutral position to the raise position to by passoil through the main relief valve 5 When the pump s inlet pipe the lager one is too hot t o hold the hydraulic fluid is at a temperature of 30 t o 40 C 86 to 1 0 4 1 SME276...

Page 653: ...o the raise position and read pressure gauge then move lever forward to neutral position RELIEF VALVE SPECIFICATIONS Pressure Engins Speed Oil Temperature 14 7 15 7 MPa 1500 rpm 30 4O C I150 160 kglcm l 186 104 F 2133 2275 psi1 6 Ifthe reading is below specification go to STEP HYDRAULIC LIFT LEAKAGE TEST 7 If the reading is above specification adjust main relief valve a s instructed on page 70 15 ...

Page 654: ... maximum height 3 Shut off the engine and note the height of the lower link from level ground 4 Leavethe tractor for 5 minutes and repeat measurement HYDRAULIC LEAKAGE SPECIFICATIONS Lowering Limit 2 5mrnlO 1 in in 5 min 5 If the lowering does not exceed the specification the system has parsed the test Otherwise pmceed to HYDRAULIC LlFT LEAKAGE TEST Stop valve closed SMEZ76011183C4 YMZ76end 276D K...

Page 655: ...utes and repeat measurement HYDRAULIC LEAKAGE SPECIFICATIONS Lower Limit 20mm 10 8in in 5 min 6 A lowering exceeding the specification can mean a PistonO ring damaged or worn In either case proceed to the HYDRAULIC LlFT CYCLE TlME TEST Seepage 270 20 8 b Safety valve seat O ring broken or debris in valve hall In either case proceed to the HYDRAULIC LlFT CYCLE TlME TEST Seepage 270 20 8 7 If the lo...

Page 656: ...oes not meet specification follow this sequence a Check that the stop valve is completely open b Check oil Level Color Viscosity Smell C Replace hydraulic oil filter paper filter cartridge on the inlet line d Check filter screen in transmission case Clean as required e Check for internal oil leakage noise and overheatingoil If present disassemble the hydraulic lift and chek Pressure Relief Valve a...

Page 657: ...on Close stop valve on cylinder head 5 Increase pressure in cylinder with the hand pump until the safety relief valve operates to relieve oil pressure A Spcial AdmtEr B From Hand Pump C P re Gauge SAFETY VALVE SPECIFICATIONS Pressure 16 7 18 6 MPa 1170 190 kglcrn 12417 2702 psi 6 If the reading deviates from the specification adjust with shims page 70 15 7 Two shim thicknesses are available 0 0078...

Page 658: ...utlet plug A from cylinder head and install a 1 4 18 NPTF headlers plug Bl to block direet passage to control valve through inlet port A OutletPlug B Plug 1 4 18 NPTF C InletHae A D Flow Meter E Outlet Hose F To reservoir 4 Remove return port plug F located on the left side of trans mission case and install flow meter outlet hose El Wire the inlet hose IC i n place required Two plug holes on cylin...

Page 659: ...tuck Stop valve closed Pilot or control valve spool stuck b Mechanical check valve action inoaired O ring o n p i n o n broken Cylinder wornor scored O ring o n stopvalve seat broken b Valve spool worn O ring between cylinder case and control valve housing broken b Inlet checkvalve or lowering valve seat leaking Debris in safety valveseat Safety valve seat worn or O ring broken Loweringvalve worn ...

Page 660: ...pilot spool stuck Air in system Oil viscosity too high Oil temperature too low Eccentric pin maladjusted Upper link improperly positioned on upper link hinge response insensitive Upper link improperly positioned on upper linkhinge Mast height too low Slow return valveclosed Main hydraulic pump worn Oil level low SUGGESTED REMEDY Adjust upper feedback Check Replaceseat Replacevalve Remove load Adju...

Page 661: ...creen clogged Cartridge filter clogged Pump gears worn c Pumpshaft key connector Pressure relief setting too high on pump housing broken Auxiliary control valve broken Pump installed 180degrees off Auxiliary hydraulicconnectors improperly connected SUGGESTED REMEDY Check Replace pump drive Replace pump Replace key Check Check pipe O ring and rubber connections Reinstall Check Replace pump Replace ...

Page 662: ...I YANMAR llESEL ENGINE CO LTI YAluMAR DIESELAMERICA GORP TEL 11 rnd7 1 f9m FAX 1 47 547 2761 ...

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