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Kubota L4400, Workshop Manual

The Kubota L4400 Workshop Manual is a comprehensive guide for maintaining and repairing your tractor. Easily download the manual for free from manualshive.com to ensure optimal performance of your vehicle. This detailed manual provides step-by-step instructions for servicing and troubleshooting your Kubota L4400, a must-have for all owners.

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8-S8

L4400 , WSM

HYDRAULIC  SYSTEM

Hydraulic Flow Test (Power Steering)

IMPORTANT

■

• When using a flowmeter which is not specified by KUBOTA,

be sure to follow the instructions for that flowmeter.

• Since the flowmeter has no relief valve, do not close the

flowmeter loading valve completely before testing.

1. Remove the power steering delivery pipe joint bolt and install the

adaptor 52 to the pump discharge port.

2. Connect the hydraulic test hose to the adaptor 52 and flowmeter

inlet port.

3. Connect the other hydraulic test hose to the flowmeter outlet port

and to the transmission fluid filling plug hole.

4. Open the flowmeter loading valve completely.  (Turn

counterclockwise.)

5. Start the engine and set the engine speed at 2000 to 2200 min

-

1

 (rpm).

6. Slowly close the loading valve to generate pressure approx. 9.8

MPa (100 kgf/cm

2

, 1422 psi).  Hold in this condition until oil

temperature reached approx. 40 

°

C (104 

°

F).

7. Open the loading valve completely.
8. Set the engine speed.  (Refer to Condition.)
9. Read and note the pump delivery at no pressure.
10.Slowly close the loading valve to increase to the rated pressure.

As the load is increased, engine speed drops, therefore, reset the
engine speed.

11.Read and note the pump delivery at rated pressure.
12.Open the loading valve completely and stop the engine.
13.If the pump delivery does not reach the allowable limit, check the

pump suction line, oil filter or hydraulic pump.

Condition

• Engine speed : Approx. 2600 min

-1

 (rpm) 

• Rated pressure :  

[2WD]                   8.0 to 9.0 MPa
                             81.4 to 91.4 kgf/cm

2

                             1158 to 1300 psi
[4WD]                   10.7 to 11.7 MPa
                             109 to 119 kgf/cm

2

                           1552 to 1697 psi

• Oil temperature : 40 to 60 

°

C (104 to 140 

°

F)

W1018791

Hydraulic pump delivery 
at no pressure

Factory spec.

Above 17.9 L/min.
           4.73 U.S.gals/min.
           3.94 Imp.gals/min.

Hydraulic pump delivery 
at rated pressure

Factory spec.

Above 17.6 L/min.
           4.65 U.S.gals/min.
           3.87 Imp.gals/min.

Allowable limit

15.7 L/min.
4.15 U.S.gals/min.
3.45 Imp.gals/min.

KiSC issued 07, 2007 A

Tractor Manuals Scotland - Please Do Not Copy

Tractor Manuals Scotland

Summary of Contents for L4400

Page 1: ...WORKSHOP MANUAL TRACTOR L4400 KiSC issued 07 2007 A Tractor Manuals Scotland Please Do Not Copy Tractor Manuals Scotland...

Page 2: ...to Diesel Engine Tractor Mechanism Workshop Manual Code No 9Y021 01874 9Y021 18201 for the one which has not been described to this workshop manual Servicing Information on the troubleshooting servici...

Page 3: ...lf to warn of the possibility of personal injury Read these instructions carefully It is essential that you read the instructions and safety regulations before you attempt to repair or use this unit D...

Page 4: ...stands Do not touch the rotating or hot parts while the engine is running Never remove the radiator cap while the engine is running or immediately after stopping Otherwise hot water will spout out fr...

Page 5: ...e the area is well ventilated Never run the engine in a closed area The exhaust gas contains poisonous carbon monoxide PREVENT ACID BURNS Sulfuric acid in battery electrolyte is poisonous It is strong...

Page 6: ...Keep a first aid kit and fire extinguisher handy at all times Keep emergency numbers for doctors ambulance service hospital and fire department near your telephone KiSC issued 07 2007 A Tractor Manua...

Page 7: ...s are installed on the machine If a decal becomes damaged illegible or is not on the machine replace it The decal part number is listed in the parts list SAFETY DECALS KiSC issued 07 2007 A Tractor Ma...

Page 8: ...6 L4400 WSM SAFETY INSTRUCTIONS KiSC issued 07 2007 A Tractor Manuals Scotland Please Do Not Copy Tractor Manuals Scotland...

Page 9: ...7 L4400 WSM SAFETY INSTRUCTIONS KiSC issued 07 2007 A Tractor Manuals Scotland Please Do Not Copy Tractor Manuals Scotland...

Page 10: ...Overall height with ROPS mm in 2170 85 4 Overall height Top of steering wheel mm in 1495 58 9 Wheel base mm in 1850 72 8 1845 72 6 Min ground clearance mm in 385 15 2 Tread Front mm in 1280 50 4 1380...

Page 11: ...9 L4400 WSM DIMENSIONS DIMENSIONS KiSC issued 07 2007 A Tractor Manuals Scotland Please Do Not Copy Tractor Manuals Scotland...

Page 12: ...G GENERAL KiSC issued 07 2007 A Tractor Manuals Scotland Please Do Not Copy Tractor Manuals Scotland...

Page 13: ...F EVERY 100 HOURS G 19 5 CHECK POINTS OF EVERY 200 HOURS G 25 6 CHECK POINTS OF EVERY 400 HOURS G 28 7 CHECK POINTS OF EVERY 600 HOURS G 28 8 CHECK POINT OF EVERY 800 HOURS G 28 9 CHECK POINT OF EVERY...

Page 14: ...RAL 1 TRACTOR INDENTIFICATION W1010590 1 Tractor Identification Plate 2 Tractor Serial Number 3 Engine Serial Number 4 Hour Meter KiSC issued 07 2007 A Tractor Manuals Scotland Please Do Not Copy Trac...

Page 15: ...eplacement to maintain machine performance and to assure safety Gaskets and O rings must be replaced during reassembly Apply grease to new O rings or oil seals before assembling See the figure left si...

Page 16: ...attempt to modify or remodel any electrical parts and wiring When removing the battery cables disconnect the negative cable first When installing the battery cables connect the positive cable first W1...

Page 17: ...ing a part take care not to get wiring caught by it W10116700 After installing wiring check protection of terminals and clamped condition of wiring only connect battery W10117350 1 Clamp Wind Clamp Sp...

Page 18: ...ed wash it off with water immediately Before recharging the battery remove it from the machine Before recharging remove cell caps Do recharging in a well ventilated place where there is no open flame...

Page 19: ...rminal being exposed or displaced W10259430 Make certain that there is no female connector being too open W10263490 Make certain plastic cover is large enough to cover whole connector W10264410 A Corr...

Page 20: ...AL 5 HANDLING OF CIRCUIT TESTER Use tester correctly following manual provided with tester Check for polarity and range W10267220 KiSC issued 07 2007 A Tractor Manuals Scotland Please Do Not Copy Trac...

Page 21: ...ricants fuel and coolant L4400 1 Fuel 42 L 11 1 U S gals 9 2 Imp gals No 2 D diesel fuel No 1 D diesel fuel if temperature is below 10 C 14 F 2 Coolant 6 5 L 6 9 U S qts 5 7 Imp qts Fresh clean water...

Page 22: ...to 20 2 17 7 to 20 5 1 8 to 2 1 13 1 to 15 1 29 5 to 34 3 3 0 to 3 5 21 7 to 25 3 M10 10 mm 0 39 in 39 3 to 45 1 4 0 to 4 6 29 0 to 33 2 31 4 to 34 3 3 2 to 3 5 23 2 to 25 3 48 1 to 55 8 4 9 to 5 7 35...

Page 23: ...start system Check every 50Hr G 18 9 Wheel bolt torque Check every 50Hr G 19 10 Battery condition Check every 100Hr G 23 4 11 Air cleaner element Double element type Primary element Clean every 100Hr...

Page 24: ...200 250 300 350 400 450 500 550 600 650 700 18 Power steering oil line Check every 200Hr G 25 Replace every 2 years G 25 19 Fuel line Check every 100Hr G 21 Replace every 2 years G 21 3 20 Toe in Adju...

Page 25: ...nd ROPS attaching hardware 7 Check and clean the radiator screen and grill 8 Check the nuts of tires are tight 9 Care of danger warning and caution labels 10 Clean around the exhaust manifold and the...

Page 26: ...5 Fill new oil up to upper hole on the dipstick 3 IMPORTANT When using an oil of different manufacture or viscosity from the previous one remove all of the old oil Never mix two different types of oil...

Page 27: ...ore checking and changing the transmission fluid 1 Place and oil pan underneath the transmission case 2 Remove the drain plugs 1 at the bottom of the transmission case 3 Drain the transmission fluid 4...

Page 28: ...and recheck the oil level add oil to the prescribed level 11 Make sure that the transmission fluid doesn t leak through the seal of the filter IMPORTANT To prevent serious damage to the hydraulic sys...

Page 29: ...all amount of multipurpose grease to the following points every 50 hours If you operated the machine in extremely wet and muddy conditions lubricate grease fittings more often When applying a grease t...

Page 30: ...ng points every 50 hours If you operated the machine in extremely wet and muddy conditions lubricate grease fittings more often W1035698 4 Grease Fitting Top Link 5 Grease Fitting Lifting Rod RH 6 Gre...

Page 31: ...switches Test 2 Switch for the range gear shift lever 1 Fully depress the clutch pedal 2 Shift the PTO lever to OFF position 3 Shift the range gear shift lever to Desired position 4 Turn the key to ST...

Page 32: ...s and nuts regularly especially when new If there are loosened tighten as follows W1033386 4 CHECK POINT OF EVERY 100 HOURS Changing Engine Oil 1 See page G 13 W1033621 Tightening torque Front wheel m...

Page 33: ...the engine with filter element removed Be sure to refit the dust cup with the arrow on the rear of cover upright If the dust cup is improperly fitted evacuator valve will not function and dust will a...

Page 34: ...o check the fuel line periodically The fuel line is subject to wear and aging fuel may leak out onto the running engine causing a fire 1 Check to see that all line and hose clamps are tight and not da...

Page 35: ...o adjust it within the factory specifications IMPORTANT Keep the free travel in the right and left brake pedals equal NOTE The difference between the right and left pedal free travels must be less tha...

Page 36: ...he indicator turns white do not charge the battery but replace it with new one 1 Mishandling the battery shortens the service life and adds to maintenance costs 2 The original battery is maintenance f...

Page 37: ...for emergencies It will partially charge the battery at a high rate and in a short time When using a boost charged battery it is necessary to recharge the battery as early as possible Failure to do t...

Page 38: ...n the event the coolant temperature be nearly or more than the boiling point this is called Overheating 1 Stop the machine operation in a safe place and keep the engine unloaded idling 2 Don t stop th...

Page 39: ...to see that hoses and hose clamps are tight and not damaged 2 If hoses and clamps are found worn or damaged replace or repair them at once W1039904 1 Hose 2 Hose Clamp KiSC issued 07 2007 A Tractor Ma...

Page 40: ...the proper toe in measurement is obtained 4 Retighten the tie rod lock nut 1 and rod mounting screw 5 Attach the snap ring 3 4WD 1 Detach the snap ring 6 2 Loosen the tie rod lock nut 4 3 Turn the tie...

Page 41: ...HECK POINTS OF EVERY 600 HOURS Adjusting Front Axle Pivot 1 Loosen the lock nut 2 tighten the adjusting screw 1 all the way and then loosen the adjusting screw 1 by 1 6 turn 2 Retighten the lock nut 2...

Page 42: ...ner 5 Follow directions of the cleaner instruction 6 After flushing fill with clean water and anti freeze until the coolant level is just below the radiator cap Install the radiator cap 1 securely 7 F...

Page 43: ...eeze If it freezes coolant can damage the cylinders and radiator If the ambient temperature falls below 0 C 32 F or before a long term storage let out cooling water completely or mix fresh water with...

Page 44: ...ts and the engine may fail to perform as specified NOTE The above date represent industry standards that necessitate a minimum glycol content in the concentrates anti freeze When the coolant level dro...

Page 45: ...od of time CAUTION Do not bleed the fuel system when the engine is hot Bleeding procedure is as follows 1 Fill the fuel tank with fuel 2 Open the air vent cock 1 on the fuel injection pump 3 Close the...

Page 46: ...s manual If any of them should below replace with a new one of the same capacity W1039315 Replacing Light Bulb 1 Head lights and rear combination lights Take the bulb out of the light body and replace...

Page 47: ...32121 Application Use exclusively for removing or installing the piston ring with ease W10241500 Diesel Engine Compression Tester Code No 07909 30208 Assembly 07909 31251 G 07909 30934 A to F 07909 31...

Page 48: ...e No 07909 31551 Application Use to check of radiator cap pressure and leaks from cooling system Remarks Adaptor 1 BANZAI Code No RCT 2A 30S 0000000815E0 Connecting Rod Alignment Tool Code No 07909 31...

Page 49: ...haft and bearing etc Measuring Green 0 025 to 0 076 mm 0 001 to 0 003 in range Red 0 051 to 0 152 mm 0 002 to 0 006 in Blue 0 102 to 0 229 mm 0 004 to 0 009 in W10247190 Red Check Code No 07909 31371...

Page 50: ...lacing Tool Application Use to press out and press fit the valve guide W10250170 A 20 mm dia 0 79 in dia B 11 7 to 11 9 mm dia 0 460 to 0 468 in dia C 6 5 to 6 6 mm dia 0 256 to 0 259 in dia D 225 mm...

Page 51: ...n C 27 mm 1 06 in D 35 mm dia 1 38 in dia E 27 90 to 27 95 mm dia 1 098 to 1 100 in dia F 25 00 to 25 01 mm dia 0 984 to 0 985 in dia A 175 mm 6 89 in B 40 mm 1 57 in C 38 mm 1 49 in D 45 mm dia 1 77...

Page 52: ...8 to 56 9 mm dia 2 236 to 2 240 in dia H 59 8 to 59 9 mm dia 2 354 to 2 358 in dia A 130 mm 5 12 in B 72 mm 2 83 in C R40 mm R1 57 in D 9 mm 0 35 in E 4 mm 0 16 in F 20 mm 0 79 in G 20 mm dia 0 79 in...

Page 53: ...Puller Code No 07916 51090 Application Use for removing the steering wheel without damaging the steering shaft W10265330 Injector CH3 Code No 07916 52501 Application Use for injecting calcium chloride...

Page 54: ...g tip guides Center piece diameter is 20 mm 0 79 in W10266370 Toe in Gauge Code No 07909 31681 Application This allows easy measurement of toe in for all machine models W10266890 Rear Axle Cover Pulle...

Page 55: ...y testing of hydraulic system W10313180 1 Gauge 07916 50322 2 Cable 07916 50331 3 Threaded Joint 07916 50401 4 Threaded Joint 07916 50341 5 Adaptor B M18 P1 5 07916 50361 6 Adaptor C PS3 8 07916 50371...

Page 56: ...021 Application Use for measuring the relief valve setting pressure for power steering W10442870 1 Adaptor 52 2 Adaptor 53 3 Adaptor 54 4 Adaptor 61 5 Adaptor 62 6 Adaptor 63 7 Adaptor 64 8 Adaptor 65...

Page 57: ...G 44 L4400 WSM G GENERAL Pump Adaptor Application Use for checking the main hydraulic pump KiSC issued 07 2007 A Tractor Manuals Scotland Please Do Not Copy Tractor Manuals Scotland...

Page 58: ...I A 22 mm 0 872 in H 10 mm dia 0 39 in dia O 61 5 mm 2 42 in B 11 mm 0 437 in I G 3 8 P 24 mm 0 94 in C 24 mm dia 0 94 in dia J 89 mm 3 50 in Q 27 7 mm 1 09 in D 18 mm dia 0 71 in dia K 135 mm 5 31 in...

Page 59: ...de No 07916 52531 Application Use for removing and installing a rear axle nut W10791100 Relief Valve Setting Pressure Adaptor G Code No 07916 52751 Application This offers easy measurement of relief v...

Page 60: ...7 in G 10 mm 0 39 in H 35 6 mm 1 40 in I 36 mm 1 42 in J 41 6 mm 1 64 in K Part code No 3A201 4130 nut L M27 1 5 M M10 1 25 Right Left A 54 7 to 54 9 mm 2 1535 to 5 1614 in 49 7 to 49 9 mm 1 9567 to 1...

Page 61: ...ntrol W10715440 A 1045 mm 41 14 in B 1000 mm 29 37 in C 20 mm dia 0 79 in dia D 30 mm dia 1 18 in dia E 90 mm 3 54 in F 30 mm 1 18 in G 30 mm 1 18 in H 15 mm 0 59 in I 20 mm dia 0 79 in dia J Weld all...

Page 62: ...n seated by the time the pressure reached 241 kPa 2 5 kgf cm2 35 psi deflate the assembly reposition the tire on the rim relubricate and reinflate After seating the bead adjust inflation pressure as r...

Page 63: ...or or any machine elements for servicing or adjustment securely support them with stands or suitable blocking beforehand Never operate tractor with a loose rim wheel or axle 1 Front Wheels Front Wheel...

Page 64: ...o 0 31 in The front width for the front loader application on 2WD model should not be greater than 1280 mm 50 4 in NOTE Wheels with beveled or tapered holes Use the tapered side of lug nut W1051130 Fr...

Page 65: ...scs to obtain wider tread NOTE Wheels with beveled or tapered holes Use the tapered side of lug nut Tire 8 3 16 Farm 27 x 8 50 15 Turf 27 x 10 50LL15 Turf 10 16 5 IND Tread 1155 mm 45 5 in 1200 mm 47...

Page 66: ...then recheck after driving the tractor 200 m 200 yards and thereafter according to service interval W1052716 Models 14 9 24 Farm 1180 mm 46 5 in 1200 mm 47 2 in 1300 mm 51 2 in 1450 mm 57 1 in 1545 m...

Page 67: ...of Calcium Chloride Solution CAUTION When making a calcium chloride solution do not pour water over calcium chloride since this results in chemical reaction which will cause high temperature Instead...

Page 68: ...tires off the ground 2 Turn the tire so that the air valve is at the top 3 Remove the air valve and attach the injector Code No 07916 52501 W10333310 1 Injector 2 Hose KiSC issued 07 2007 A Tractor M...

Page 69: ...the specified pressure Weight of Calcium Chloride Solution Filling 75 of Full Capacity of a Tire W10334350 Tire sizes 14 9 24 17 5L 24 Slush free at 10 C 14 F Solid at 30 C 22 F Approx 1 kg 2 lbs CaC...

Page 70: ...uid liquid can only be drained to the level of the valve and liquid under that level remains inside 4 To drain liquid completely use the injector and direct compressed air into the tire to force out t...

Page 71: ...oper implements are not covered by the warranty Implement size may vary depending on soil operating conditions Tread max width Lower link end max lifting capacity W0 Front Rear 2WD 4WD 1580 mm 62 2 in...

Page 72: ...400 880 7 Chisel Plow Max Width mm in 1829 72 Max Weight kg lbs 350 770 8 Broad Caster Max Tank capacity L U S gals 300 80 Max Weight kg lbs 100 220 9 Manure Spreader Max Capacity kg lbs 2000 4400 10...

Page 73: ...conditions W1102494 No Implement Remarks L4400 16 Snow Blade Max Width mm in 1830 72 Max Weight kg lbs 350 770 17 Snow Blower Max Working Width mm in 1676 66 Max Weight kg lbs 280 620 KiSC issued 07...

Page 74: ...1 ENGINE KiSC issued 07 2007 A Tractor Manuals Scotland Please Do Not Copy Tractor Manuals Scotland...

Page 75: ...Separating Engine and Clutch Housing 1 S21 2 Separating Engine from Front Axle Frame 1 S28 3 DISASSEMBLING AND ASSEMBLING 1 S30 1 Cylinder Head and Valves 1 S30 2 Timing Gears Camshaft and Fuel Camsh...

Page 76: ...S20 Injection pump malfunctioning Repair or replace 1 S18 S19 Seizure of crankshaft camshaft piston cylinder or bearing Repair or replace Compression leak from cylinder Replace head gasket tighten cy...

Page 77: ...bserved Overload Loosen load Low grade fuel used Use specified fuel G 8 Fuel filter clogged Change G 20 Air cleaner clogged Clean or replace G 20 Deficient nozzle injection Repair or replace nozzle 1...

Page 78: ...Replace 1 S54 Excessive oil clearance of rocker arm Replace 1 S28 Oil passage clogged Clean Different type of oil Use specified type of oil G 6 Oil pump defective Repair or replace 1 S34 S59 High Oil...

Page 79: ...0 18 to 0 22 mm 0 0071 to 0 0087 in Valve Seat Width Intake 2 12 mm 0 0835 in Width Exhaust 2 12 mm 0 0835 in Valve Seat Width Intake 1 047 rad 60 Width Exhaust 0 785 rad 45 Valve Face Angle Intake 1...

Page 80: ...0 020 to 0 062 mm 0 00079 to 0 00244 in 23 959 to 23 980 mm 0 94327 to 0 94410 in 24 000 to 24 021 mm 0 94488 to 0 94571 in 0 07 mm 0 0028 in Timing Gear Crank Gear to Idle Gear Idle Gear to Cam Gear...

Page 81: ...Sleeve Wear 0 1 mm 0 0039 in Cylinder Bore Standard Oversize I D I D 87 000 to 87 022 mm 3 42519 to 3 42606 in 87 500 to 87 522 mm 3 44488 to 3 44574 in 0 15 mm 0 0059 in 0 15 mm 0 0059 in Flywheel S...

Page 82: ...pening Temperature At Beginning Opened Completely 69 5 to 72 5 C 157 1 to 162 5 F 85 C 185 F Radiator Water Tightness No leak at 137 kPa 1 4 kgf cm2 20 psi Radiator Cap Pressure Falling Time 10 second...

Page 83: ...from 14 7 to 13 7 MPa from 150 to 140 kgf cm2 from 2133 to 1990 psi 5 seconds for pressure falling from 14 7 to 13 7 MPa from 150 to 140 kgf cm2 from 2133 to 1990 psi Injection Nozzle Injection Pressu...

Page 84: ...ounting screw 23 5 to 27 5 2 4 to 2 8 17 4 to 20 3 Item Size x Pitch N m kgf m ft lbs Cylinder head cover screw M6x 1 0 6 9 to 11 3 0 7 to 1 15 5 1 to 8 32 Cylinder head screws M11 x 1 25 93 1 to 98 0...

Page 85: ...e tightening The letter M in Size Pitch means that the screw bolt or nut dimension stands for metric The size is the nominal outside diameter in mm of the threads The pitch is the nominal distance in...

Page 86: ...measurement is below the allowable limit apply a small amount of oil to the cylinder wall through the nozzle hole and measure the compression pressure again 9 If the compression pressure is still less...

Page 87: ...el is just for No 1 cylinder There is no TC marking for the other cylinders No 1 piston comes to the T D C position when the TC marking is aligned with center of timing window on clutch housing Turn t...

Page 88: ...ad and measure the thickness of the fuses 6 If the measurement is not within the factory specifications check the oil clearance between the crankpin and bearing and between the piston pin and bushing...

Page 89: ...e 0 020 to 0 060 mm 0 0079 to 0 0024 in 0 15 mm 0 0059 in Top Ring Ring Gap 0 30 to 0 45 mm 0 0118 to 0 0177 in 1 25 mm 0 0492 in Second Ring Ring Gap 0 30 to 0 45 mm 0 0118 to 0 0177 in 1 25 mm 0 049...

Page 90: ...d Oil gallery clogged Excessive oil clearance Foreign matter in the relief valve When reassembling After checking the engine oil pressure tighten the engine oil pressure switch to the specified torque...

Page 91: ...ve replace it W1016443 6 Radiator Thermostat Valve Opening Temperature 1 Suspend the thermostat in the water by a string with its end inserted between the valve and seat 2 Heating the water gradually...

Page 92: ...cap W1054156 Radiator Water Leakage 1 Pour a specified amount of water into the radiator 2 Set a radiator tester Code No 07909 31551 with an adapter BANZAI Code No RCT 2A 30S and raise the water pres...

Page 93: ...injection timing 6 The flywheel has mark 1TC and four lines indicating every 0 087 rad 5 of crank angle from 0 175 rad 10 to 0 436 rad 25 before mark 1TC Calculate the angle which the center of the w...

Page 94: ...e same thickness 8 Injection Nozzle CAUTION Check the nozzle injection pressure and condition after confirming that there is nobody standing in the direction of the injected fuel If the injected fuel...

Page 95: ...f adjusting washer thickness Approx 235 kPa 2 4 kgf cm2 34 psi W10182100 Valve Seat Tightness 1 Set the injection nozzle to a nozzle tester Code No 07909 31361 2 Raise the fuel pressure and keep at 12...

Page 96: ...refilling Fill the engine oil up to the upper line on the dipstick 2 IMPORTANT Never mix two different type of oil Use the proper SAE Engine Oil according to ambient temperatures Refer to LUBRICANTS F...

Page 97: ...ansmission Do not mix different brands of oil together W1040435 Draining Coolant CAUTION Never remove the radiator cap until coolant temperature is well below its boiling point Then loosen cap slightl...

Page 98: ...nect the connector to head light and the head light wiring 3 Remove bonnet 2 and side covers 3 on both sides 4 Remove the front cover 4 W1040763 1 Battery Negative Cable 2 Bonnet 3 Side Cover 4 Front...

Page 99: ...low Key stop solenoid relay 10 8 Disconnect fuel tank wiring 11 9 Remove rear bonnet 4 When reassembling W1041819 Tightening torque Steering wheel mounting nut 48 0 to 55 9 N m 4 9 to 5 7 kgf m 35 4 t...

Page 100: ...switch then set aside the wiring harness W1042794 Tightening torque Independent PTO delivery pipe joint bolt 34 3 to 39 2 N m 3 5 to 4 0 kgf m 25 3 to 28 9 ft lbs Power steering delivery hose joint bo...

Page 101: ...spring pin 4 5 as shown in figure W1043855 Tightening torque Main delivery hose retaining nut 46 2 to 50 9 N m 4 8 to5 2 kgf m 34 4 to 37 6 ft lbs Turning delivery hoses retaining nut 24 5 to 29 4 N...

Page 102: ...Direct the shorter end of the clutch disc boss toward the flywheel Apply molybdenum disulphide Three Bond 1901 or equivalent to the splines of clutch disc boss Insert the pressure plate noting the pos...

Page 103: ...aner hose 4 2 Disconnect recovery tank hoses 5 and then remove recovery tank 6 recovery tank stay 7 3 Remove muffler 8 When reassembling W23568914 1 Fuel Tank 2 Fuel Return Tubes 3 Bonnet Support Moun...

Page 104: ...front axle frame 4 When reassembling Remove engine hook 3 and return it to the original position W56897412 Tightening torque Front axle frame mounting screw M 10 60 8 to 70 5 N m 6 2 to 7 2 kgf m 44 9...

Page 105: ...r head cover gasket is not defective W1028468 Injection Pipes 1 Loosen the screws on the pipe clamps 1 2 Detach the injection pipes 2 3 Remove the inlet Manifold 3 When reassembling Blow out dust insi...

Page 106: ...the heat seal hole 2 Turn screw driver three or four times each way 3 While turning the screw driver slowly pull the heat seal 4 out together with the copper gasket 3 4 If the heat seal drops repeat...

Page 107: ...detach 4 Remove the cylinder head gasket When reassembling Replace the cylinder head gasket with a new one Tighten the cylinder head screws after applying sufficient oil Tighten the cylinder head scre...

Page 108: ...retainer 4 by valve spring replacer 1 3 Remove the valve spring retainer 4 valve spring 5 and valve stem seal 6 4 Remove the valve 7 When reassembling Wash the valve stem seal and valve guide hole and...

Page 109: ...e Before fitting the stop lever 3 to the gear case install the solenoid guide 5 first into position Then attach the stop lever and use it to see if it functions well Before fitting the idling limiter...

Page 110: ...large governor spring 2 from the fork lever 3 4 Using the specific tool 1 undo the small governor spring 4 from the fork lever 3 5 Set the speed control lever 5 as shown in the figure 6 Take out the...

Page 111: ...permanently Using the specific tool 1 hook the large governor spring 2 onto the fork lever 3 Make sure both the governor springs 2 4 are tight on the fork lever 3 Apply and tighten up the two bolts a...

Page 112: ...ear case gasket Check to see if there are four O rings 1 inside the gear case 2 Apply a thin film of engine oil to the oil seal 3 and install it noting the lip come off Before installing the gear case...

Page 113: ...W1053936 Fuel Camshaft and Fork Lever Assembly 1 Remove the external snap ring 2 Detach the hydraulic pump drive gear 3 Remove the fuel camshaft stopper 4 Remove the three fork lever holder mounting...

Page 114: ...n mounting screws 2 Remove the oil pan 1 by lightly tapping the rim of the pan with a wooden hammer 3 Remove the oil pan gasket 2 4 Remove the oil strainer 3 and O ring When reassembling After cleanin...

Page 115: ...out the piston upward by lightly tapping it from the bottom of the crankcase with the grip of a hammer 5 Draw out the other piston in the same method as above W10547370 1 Carbon 2 Connecting Rod Scre...

Page 116: ...e Carefully insert the pistons using a piston ring compressor 1 When inserting the piston in place be careful not to get the molybdenum disulfide coating torn off its skirt This coating is useful in m...

Page 117: ...2 place the expander joint 10 on the opposite side of the oil ring gap 11 Apply engine oil to the piston pin When installing the piston pin 1 immerse the piston 2 in 80 C 176 F oil for 10 to 15 minute...

Page 118: ...hen reassembling Insert two pieces of the flywheel guide screws Check to see that there are no metal particles left on the flywheel mounting surfaces Apply engine oil to the threads and the undercut s...

Page 119: ...during reassembling 1 Remove the main bearing case screw 2 1 2 Pull out the crankshaft assembly taking care not to damage the crankshaft bearing 1 When reassembling IMPORTANT Install the crankshaft s...

Page 120: ...s A B C from the gear case side Match the alignment numbers 4 and mark 5 on the main bearing case When instaling the main bearing case 1 2 and 3 face the mark FLYWHEEL to the flywheel Install the thru...

Page 121: ...der 1 and take out parts inside When reassembling Heat seal and copper gasket must be changed when the injection nozzle is removed for cleaning or for service Assemble the nozzle in clean fuel oil Ins...

Page 122: ...7737 Cylinder Head Flaw 1 Prepare an air spray red check Code No 07909 31371 2 Clean the surface of the cylinder head with detergent 2 3 Spray the cylinder head surface with the red permeative liquid...

Page 123: ...hole gauge and calculate the clearance 4 If the clearance exceeds the allowable limit replace the valves If it still exceeds the allowable limit replace the valve guide W10311740 Valve recessing Facto...

Page 124: ...he valve face lightly with prussian blue and put the valve on its seat to check the contact 2 If the valve does not seat all the way around the valve seat or the valve contact is less than 70 correct...

Page 125: ...ve face and valve seat and fit them with valve lapping tool 4 Check the valve seating with prussian blue The valve seating surface should show good contact all the way around W10283500 Valve Lapping 1...

Page 126: ...er Arm Shaft 1 Measure the rocker arm shaft O D with an outside micrometer 2 Measure the rocker arm I D with an inside micrometer and then calculate the oil clearance 3 If the oil clearance exceeds th...

Page 127: ...calculate the oil clearance 3 If the oil clearance exceeds the allowable limit or the tappet is damaged replace the tappet W11231410 Push rod alignment Allowable limit 0 25 mm 0 0098 in Oil clearance...

Page 128: ...to the font and rear 3 If the measurement exceeds the allowable limit replace the camshaft stopper W11299720 Backlash between idle gear and crank gear Factory spec 0 0415 to 0 1122 mm 0 00163 to 0 004...

Page 129: ...V blocks on the surface plate at both end journals 2 Set a dial indicator with its tip on the intermediate journal 3 Measure the camshaft alignment 4 If the measurement exceeds the allowable limit rep...

Page 130: ...and calculate the oil clearance 3 If the oil clearance exceeds the allowable limit replace the bushing If it still exceeds the allowable limit replace the piston pin W11420110 Oil clearance of camshaf...

Page 131: ...with a feeler gauge or depth gauge 3 If the clearance exceeds the allowable limit replace the ring as compression leakage and oil loss or burning will result 4 If the clearance still exceeds the allow...

Page 132: ...the crankshaft 3 Measure the end play by pulling the crankshaft toward the crank gear 4 If the measurement exceeds the allowable limit replace the thrust bearing 1 and 2 Reference Oversize dimensions...

Page 133: ...with an undersize one referring to the table and figure NOTE Never insert the plastigage into the crankpin oil hole Be sure not to move the crankshaft while the connecting rod screws are tightened Ref...

Page 134: ...a new bearing 1 2 so that its seam 1 directs toward the exhaust manifold side W10342000 Oil clearance between crankshaft journal and crankshaft bearing 1 Factory spec 0 040 to 0 118 mm 0 00157 to 0 0...

Page 135: ...the wear exceeds the allowable limit or when the engine oil leaks replace the crankshaft sleeve W1110651 Oil clearance between crankshaft and crankshaft bearing 2 Factory spec 0 040 to 0 104 mm 0 0015...

Page 136: ...eve to a temperature between 150 to 200 C 302 to 392 F and fix the sleeve to the crankshaft as shown in figure 5 Press fit the sleeve using the auxiliary socket for pushing 4 Refer to SPECIAL TOOLS NO...

Page 137: ...allowable limit bore and hone it to the specified dimension 2 Replace the piston and piston rings with oversize 0 25 mm ones NOTE When the oversize cylinder is worn beyond the allowable limit replace...

Page 138: ...en the screws 3 Remove the cover carefully and measure the width of the press gauge with a sheet of gauge 4 If the clearance exceeds the factory specifications replace the oil pump rotor assembly W103...

Page 139: ...2 CLUTCH KiSC issued 07 2007 A Tractor Manuals Scotland Please Do Not Copy Tractor Manuals Scotland...

Page 140: ...CONTENTS MECHANISM 1 STRUCTURE 2 M1 1 TRAVELING CLUTCH 2 M1 2 HYDRAULIC PTO CLUTCH 2 M2 KiSC issued 07 2007 A Tractor Manuals Scotland Please Do Not Copy Tractor Manuals Scotland...

Page 141: ...the clutch is disengaged and when the clutch pedal is released the clutch is engaged and power from the engine is transmitted to the transmission W1012642 1 Flywheel 2 Pressure Plate 3 Clutch Cover 4...

Page 142: ...as shown in the left figure When the shift lever is moved to the B side the PTO clutch valve 4 is set at ENGAGED position Then the oil flows to clutch pack through the PTO clutch valve 4 and the clut...

Page 143: ...aging shock of the clutch pack When the shift lever is set at the DISENGAGED position the spool 2 is turned to B position then the oil from the regulator valve is stopped by the spool 2 and the oil in...

Page 144: ...G AND ASSEMBLING 2 S11 4 SERVICING 2 S12 5 CHECKING DISASSEMBLING AND SERVICING HYDRAULIC PTO CLUTCH 2 S14 1 CHECKING AND ADJUSTING 2 S14 2 PREPARATION 2 S15 1 Separating Engine from Clutch Housing 2...

Page 145: ...lace 2 S11 Chattering Grease or oil on clutch disc facing Replace 2 S11 Clutch disc or pressure plate warped Replace 2 S11 Clutch disc boss spline worn or rusted Replace or remove rust 2 S11 Pressure...

Page 146: ...clutch malfunctioning Repair or replace 2 S23 PTO coupling left behind Install 3 M1 PTO Clutch Operating Pressure is Low Transmission oil improper or insufficient Replenish or change G 8 Relief valve...

Page 147: ...utch Valve Condition Engine Speed Idling Oil Temperature 40 to 60 C 104 to 140 F Relief Valve Setting Pressure 2 25 to 2 45 MPa 23 0 to 25 0 kgf cm2 327 to 356 psi PTO Clutch Disc Thickness 1 70 to 1...

Page 148: ...TO clutch control valve mounting screw 23 5 to 27 5 2 4 to 2 8 17 4 to 20 3 PTO clutch holder mounting screw 77 5 to 90 2 7 9 to 9 2 57 1 to 66 5 Step mounting nut 48 1 to 55 9 4 9 to 5 7 35 4 to 41 2...

Page 149: ...he lock nut 2 remove the cotter pin 3 and the clevis pin 4 then adjust the length of rod 1 within acceptable limits 3 Retighten the lock nut reinstall the clevis pin the cotter pin and split the cotte...

Page 150: ...el if necessary IMPORTANT Use only multi grade transmission fluid Use of other fluides may damage the transmission or hydraulic system Refer to LUBRICANTS FUEL AND COOLANT See page G 8 Never work the...

Page 151: ...ect the connector to head light and the head light wiring 3 Remove bonnet 2 and side covers 3 on both sides 4 Remove the front cover 4 W1063478 1 Battery Negative Cable 2 Bonnet 3 Side Cover 4 Front C...

Page 152: ...ow Key stop solenoid relay 10 8 Disconnect fuel tank wiring 11 9 Remove rear bonnet 4 When reassembling W1064593 Tightening torque Steering wheel mounting nut 48 0 to 55 9 N m 4 9 to 5 7 kgf m 35 4 to...

Page 153: ...Disconnect 1P connector 7 to engine oil pressure switch then set aside the wiring harness W1065603 Tightening torque Independent PTO delivery pipe joint bolt 34 3 to 39 2 N m 3 5 to 4 0 kgf m 25 3 to...

Page 154: ...spring pin 4 5 as shown in figure W1066505 Tightening torque Main delivery hose retaining nut 46 2 to 50 9 N m 4 8 to5 2 kgf m 34 4 to 37 6 ft lbs Turning delivery hoses retaining nut 24 5 to 29 4 N...

Page 155: ...en reassembling Direct the shorter end of the clutch disc boss toward the flywheel Apply molybdenum disulphide Three Bond 1901 or equivalent to the splines of clutch disc boss Insert the pressure plat...

Page 156: ...disc edge 4 If the measurement exceeds the allowable limit replace the clutch disc W1016866 Release Bearing 1 Check for abnormal wear on contact surface 2 Rotate the release bearing outer race while a...

Page 157: ...r wear If excessive wear is found replace the clutch cover assembly 4 Inspect thrust rings wire ring for wear or damage As these parts are invisible from outside shake pressure plate assembly up and d...

Page 158: ...connect the universal joint of the implement to the tractor PTO shaft while testing Condition Engine speed Idling speed Oil temperature 40 to 60 C 104 to 140 F Reference Turn to clockwise direction P...

Page 159: ...d level if necessary IMPORTANT Use only multi grade transmission fluid Use of other fluides may damage the transmission or hydraulic system Refer to LUBRICANTS FUEL AND COOLANT See page G 8 Never work...

Page 160: ...sconnect the connector to head light and the head light wiring 3 Remove bonnet 2 and side covers 3 on both sides 4 Remove the front cover 4 1 Battery Negative Cable 2 Bonnet 3 Side Cover 4 Front Cover...

Page 161: ...to glow Key stop solenoid relay 10 8 Disconnect fuel tank wiring 11 9 Remove rear bonnet 4 When reassembling Tightening torque Steering wheel mounting nut 48 0 to 55 9 N m 4 9 to 5 7 kgf m 35 4 to 41...

Page 162: ...Disconnect 1P connector 7 to engine oil pressure switch then set aside the wiring harness Tightening torque Independent PTO delivery pipe joint bolt 34 3 to 39 2 N m 3 5 to 4 0 kgf m 25 3 to 28 9 ft...

Page 163: ...spring pin 4 5 as shown in figure Tightening torque Main delivery hose retaining nut 46 2 to 50 9 N m 4 8 to5 2 kgf m 34 4 to 37 6 ft lbs Turning delivery hoses retaining nut 24 5 to 29 4 N m 2 5 to...

Page 164: ...nts 1 Disconnect foot accelerator rod 1 2 Remove brake rod R H 2 and L H 10 3 Remove mounting bolts and steering support 3 4 Remove clutch rod 4 5 Remove fuse box 6 and ground cable 5 6 Disconnect dif...

Page 165: ...and remove main gear shift base 2 When reassembling Apply grease to the O rings 3 and take care not to damage it W1030173 Tightening torque 3P delivery pipe joint bolts 49 0 to 69 0 N m 5 0 to 7 0 kg...

Page 166: ...d 1208D or equivalent to joint face of the clutch housing and mid case W1030814 Tightening torque Mid case and transmission case mounting screw and nut 102 9 to 117 6 N m 10 5 to 12 0 kgf m 75 9 to 86...

Page 167: ...sion fluid to the O ring Install oil pipe 2 to the side hole of PTO clutch holder 6 firmly W1031115 Tightening torque PTO clutch valve mounting screw 23 5 to 27 4 N m 2 4 to 2 8 kgf m 17 4 to 20 2 ft...

Page 168: ...plates Assemble the plug rubbers portion of the three steel plates 6 10 and 12 are same positions while assembling them Refer to figure below Apply enough transmission fluid to the discs 5 Confirm th...

Page 169: ...move the brake plate mounting screws 3 and then take out the brake plate 4 and the springs 2 When reassembling Apply liquid lock Three Bond 1372 or equivalent to the brake plate mounting screws 3 W103...

Page 170: ...e limit replace it PTO Steel Plate Wear 1 Measure the thickness of PTO steel plate with vernier calipers 2 If the thickness is less than the allowable limit replace it W1033498 1 Clutch Case 2 Jig 3 S...

Page 171: ...Measure the thickness of seal rings 1 with an outside micrometer 2 If the measurement is less than the allowable limit replace it Flatness of PTO piston Allowable limit 0 15 mm 0 006 in Flatness of PT...

Page 172: ...t connect the universal joint of the implement to the tractor PTO shaft while testing Condition Engine speed Idling speed Oil temperature 40 to 60 C 104 to 140 F Reference Turn to clockwise direction...

Page 173: ...IMPORTANT Use only multi grade transmission fluid Use of other fluides may damage the transmission or hydraulic system Refer to LUBRICANTS FUEL AND COOLANT See page G 8 Never work the tractor immedia...

Page 174: ...e lever arm 2 2 Draw out the lever arm 2 by the bearing puller after removing the external snap ring 3 When reassembling Assemble them with aligning the marks Tightening torque 3P delivery pipe 1 2 jo...

Page 175: ...4 4 Remove the spring 3 and tap out the spring pin 7 and then remove the lever 4 When reassembling Replace the oil seal 1 Assemble the spool 6 and lever 4 with aligning the marks 1 Oil Seal 2 Clutch V...

Page 176: ...3 TRANSMISSION KiSC issued 07 2007 A Tractor Manuals Scotland Please Do Not Copy Tractor Manuals Scotland...

Page 177: ...CONTENTS MECHANISM 1 STRUCTURE 3 M1 KiSC issued 07 2007 A Tractor Manuals Scotland Please Do Not Copy Tractor Manuals Scotland...

Page 178: ...ion 2 PTO Clutch Pack 3 Front Wheel Drive Shift Section 4 Lo Reverse Hi Shift Section A To Front Wheels B To Rear Wheels 3TLAAAC3P001A 2 3 1 4 2WD 4WD A Lo R Hi 4 3 2 1 B KiSC issued 07 2007 A Tractor...

Page 179: ...3 S6 2 Separating Clutch Housing from Mid Case 3 S11 3 Separating Transmission 3 S14 2 DISASSEMBLING AND ASSEMBLING 3 S20 1 Clutch Housing 3 S20 2 Mid Case 3 S24 3 Transmission Case 3 S25 3 SERVICING...

Page 180: ...ken or damaged Replace 3 S21 Interlock ball fallen Reassemble Gears worn or broken Replace Hard Shifting Shifter or shift fork worn or damaged Replace 3 S32 Shift fork bent Replace Shift linkage ruste...

Page 181: ...erential pinion and differential side gear Adjust 3 S37 Bearings worn Replace 3 S31 Insufficient or improper type of transmission fluid Replenish or replace G 8 3 S6 Noise While Turning Differential p...

Page 182: ...se Bore Differential Side Gear Boss Differential Side Gear Boss Clearance I D I D O D 0 050 to 0 151 mm 0 00197 to 0 00594 in 40 500 to 40 550 mm 1 59449 to 1 59646 in 40 500 to 40 550 mm 1 59449 to 1...

Page 183: ...6 10 5 to 12 0 76 9 to 86 8 Clutch housing case and mid case mounting stud bolts 39 2 to 49 0 4 0 to 5 0 28 9 to 36 2 Main shift base mounting screws 23 5 to 27 4 2 4 to 2 8 17 4 to 20 2 Main shift a...

Page 184: ...8 to 72 5 6 4 to 7 4 46 3 to 53 5 Spiral bevel pinion lock nut 147 to 196 15 to 20 108 to 145 Spiral bevel pinon bearing case mounting screws 39 2 to 44 1 4 0 to 4 5 28 9 to 32 5 Transmission bearing...

Page 185: ...d oil to prescribed level if necessary IMPORTANT Use only multi grade transmission fluid Use of other fluides may damage the transmission or hydraulic system Refer to LUBRICANTS FUEL AND COOLANT See p...

Page 186: ...onnect the connector to head light and the head light wiring 3 Remove bonnet 2 and side covers 3 on both sides 4 Remove the front cover 4 W1022852 1 Battery Negative Cable 2 Bonnet 3 Side Cover 4 Fron...

Page 187: ...glow Key stop solenoid relay 10 8 Disconnect fuel tank wiring 11 9 Remove rear bonnet 4 When reassembling W1064593 Tightening torque Steering wheel mounting nut 48 0 to 55 9 N m 4 9 to 5 7 kgf m 35 4...

Page 188: ...6 4 Disconnect 1P connector 7 to engine oil pressure switch then set aside the wiring harness W1065603 Tightening torque Independent PTO delivery pipe joint bolt 34 3 to 39 2 N m 3 5 to 4 0 kgf m 25 3...

Page 189: ...in spring pin 4 5 as shown in figure W1066505 Tightening torque Main delivery hose retaining nut 46 2 to 50 9 N m 4 8 to5 2 kgf m 34 4 to 37 6 ft lbs Turning delivery hoses retaining nut 24 5 to 29 4...

Page 190: ...er Components 1 Disconnect foot accelerator rod 1 2 Remove brake rod R H 2 and L H 10 3 Remove mounting bolts and steering support 3 4 Remove clutch rod 4 5 Remove fuse box 6 and ground cable 5 6 Disc...

Page 191: ...rews and remove main gear shift base 2 When reassembling Apply grease to the O rings 3 and take care not to damage it W1014109 Tightening torque 3P delivery pipe joint bolt 49 0 to 69 0 N m 5 0 to 7 0...

Page 192: ...Bond 1208D or equivalent to joint face of the clutch housing and mid case W1044068 Tightening torque Mid case and transmission case mounting screw and nut 102 9 to 117 6 N m 10 5 to 12 0 kgf m 75 9 to...

Page 193: ...ion fluid Use of other fluides may damage the transmission or hydraulic system Refer to LUBRICANTS FUEL AND COOLANT See page G 8 Never work the tractor immediately after changing the transmission flui...

Page 194: ...the seat stay 3 W1014739 Tightening torque ROPS mounting screw M14 screw 166 7 to 196 1 N m 17 0 to 20 0 kgf m 123 to 144 ft lbs M12 screw 77 5 to 90 2 N m 7 9 to 9 2 kgf m 57 1 to 66 5 ft lbs ROPS fu...

Page 195: ...livery pipe 2 I PTO delivery pipe 5 5 Remove brake connecting rod RH 6 and LH When reassembling Apply grease to the O rings W1015833 1 Foot Accelerator Rod 2 Differential Lock Pedal 3 Step 4 Center Co...

Page 196: ...Bond 1208D or equivalent to joint face of mid case and transmission case after eliminate water oil and stuck liquid gasket W1016201 Tightening torque Main gear shift lever mounting screw 23 6 to 27 4...

Page 197: ...eliminate the water oil and stuck liquid gasket When replacing the hydraulic cylinder assembly mounting stud bolts apply liquid lock Three Bond 1372 or equivalent to A portion of the stud bolt NOTE Re...

Page 198: ...case around hole A after eliminate the water oil and stuck liquid gasket Before installing the brake case to the transmission case install the cam plate to the transmission case W1016886 Tightening to...

Page 199: ...mbling Apply liquid gasket Three Bond 1208D or equivalent to joint surface of the shaft case and clutch housing case after eliminating the water oil and stuck liquid gasket When replacing oil seal in...

Page 200: ...ut bearing holder 2 When reassembling Install three interlock balls 4 with a small amount of grease to clutch housing bearing holder 2 after setting the shift forks and shift rods to neutral position...

Page 201: ...nstall bearing 6 spacer 5 oil seal 4 and internal snap ring to clutch housing 8 Install sleeve 7 to the rear propeller shaft with dimension shown on the figure then install the rear propeller shaft fr...

Page 202: ...Sleeves 1 and 2 W10315930 A 40 mm dia 1 57 in dia B 26 mm dia 1 02 in dia C 36 mm dia 1 42 in dia D 200 mm 7 87 in E 40 mm 1 57 in F 250 mm 9 84 in G 10 mm 0 39 in H 22 mm dia 0 87 in dia I 25 mm dia...

Page 203: ...ly a small amount of transmission fluid to the O ring Install oil pipe 2 to the side hole of PTO clutch holder 6 firmly W1064877 Tightening torque PTO clutch valve mounting screw 23 5 to 27 4 N m 2 4...

Page 204: ...e of the number of shims in the pinion bearing case Replace the lock nut 3 with a new one and stake the lock nut firmly after installing the parts on the shaft W1020909 Tightening torque Lock nut 147...

Page 205: ...ift fork rod 3 to transmission bearing holder 1 2 Remove transmission bearing holder by using 2 jack screws M8 4 W1020311 1 Transmission Bearing Holder 2 Spring Pin 3 Hi Shift Fork Rod 4 Jack Screws M...

Page 206: ...fork 1 3 Remove PTO gear shaft assembly 6 W1020895 1 Hi shift Fork Rod 2 Pinion Gear Shaft Assembly 3 Lo reverse Fork Rod 4 Lo reverse Gear Shaft Assembly 5 Front Wheel Drive Shift Lever 6 PTO Gear S...

Page 207: ...to the left and right oil seals on the transmission case Insert the clevis pin 3 form the top and install the washer and cotter pin Tap in the spring pin 4 so that its split portion a may face outwar...

Page 208: ...ove the differential support noting the number of left shims 2 Take out the differential gear assembly noting the number of right shims When reassembling Check the spiral bevel gear for wear or damage...

Page 209: ...side gear boss W10735860 Spiral Bevel Gear 1 Remove the spiral bevel gear When reassembling Check the spiral bevel gear for wear or damage If it is no longer serviceable replace it Then also replace t...

Page 210: ...quivalent to the inner circumferential surface of the differential pinions Install the parts to their original position Install the differential pinion washers 4 noting its groove position W10741630 3...

Page 211: ...to check clearance with feeler gauge 2 If the clearance exceeds allowable limit replace W10269970 Free Length of the Shift Fork Spring 1 Measure free length of spring with vernier caliper 2 If the fre...

Page 212: ...th a vise 2 Set dial indicator lever type with its finger on the spline 3 Move the shaft to measure clearance 4 If the clearance exceeds the allowable limit replace W1234567 Clearance between Shift Fo...

Page 213: ...l 1 Turning Torque Tool Weld socket on the brake shaft Brake shaft Part No TA040 26710 3 Add or reduce the thickness of shims 3 to make the specified turning torque 4 After getting the specified turni...

Page 214: ...ghtly over several teeth at three positions equally spaced on the spiral bevel gear 6 Turn the spiral bevel pinion shaft while pressing a wooden piece against the perphery on the spiral bevel gear 7 C...

Page 215: ...differential case and differential case cover 2 Measure the differential side gear boss O D and calculate the clearance 3 If the clearance exceeds the allowable limit replace them W102840310 A Proper...

Page 216: ...he factory specifications adjust with the differential side gear washer Reference Thickness of differential side gear washers 1 5 mm 0 059 in 1 7 mm 0 067 in 1 6 mm 0 063 in W10289200 Clearance betwee...

Page 217: ...Shift the range gear shift level to N Neutral position on the H High speed side Keeping the lever slightly being pushed forward to the left of the photo measure the overlapping length A of the level a...

Page 218: ...and arm L R 4 in the neutral position has become too large So make adjustment to the turnbuckle L R 5 to correct the drift 3 Again check by shifting and complete the adjustment NOTE Lock securely the...

Page 219: ...4 REAR AXLE KiSC issued 07 2007 A Tractor Manuals Scotland Please Do Not Copy Tractor Manuals Scotland...

Page 220: ...CONTENTS MECHANISM 1 STRUCTURE 4 M1 KiSC issued 07 2007 A Tractor Manuals Scotland Please Do Not Copy Tractor Manuals Scotland...

Page 221: ...final gears 9 The rear axles are the semi floating type with the ball bearing 1 between the rear axle 2 and rear axle case 3 which support the rear wheel load besides transmitting power to the rear w...

Page 222: ...OOTING 4 S1 2 TIGHTENING TORQUES 4 S2 3 DISASSEMBLING AND SERVICING 4 S3 1 PREPARATION 4 S3 2 DISASSEMBLING REAR AXLE 4 S6 3 SERVICING 4 S7 KiSC issued 07 2007 A Tractor Manuals Scotland Please Do Not...

Page 223: ...between differential gear shaft and final gear Replace 4 S5 to S6 Bearing worn Replace 4 S7 Insufficient or improper type of transmission fluid used Replenish or change G 8 Noise while Turning Differe...

Page 224: ...149 1 to 179 5 15 2 to 18 3 110 to 132 ROPS fulcrum screw 118 to 137 12 to 14 87 to 101 Rear wheel mounting stud bolt 98 1 to 112 7 10 0 to 11 5 72 3 to 83 1 Rear wheel mounting screw and nut 197 to 2...

Page 225: ...vel if necessary IMPORTANT Use only multi grade transmission fluid Use of other fluids may damage the transmission or hydraulic system Refer to LUBRICANTS FUEL AND COOLANT See page G 8 Never work the...

Page 226: ...wiring harness from fender W1012862 Tightening torque ROPS mounting screw M14 screw 166 7 to 196 1 N m 17 0 to 20 0 kgf m 123 to 144 ft lbs M12 screw 77 5 to 90 2 N m 7 9 to 9 2 kgf m 57 1 to 66 5 ft...

Page 227: ...brake case When reassembling Apply liquid gasket Three Bond 1208D or equivalent to joint face of the rear axle case and brake case after eliminate the water oil and stuck liquid gasket W1015033 Tighte...

Page 228: ...he oil seal 2 and install it Replace the lock nut with new one and after tightening it to specified torque stake it firmly Assemble the oil seal 2 with correct direction See figure above A portion W10...

Page 229: ...r race in all directions to check for wear and roughness 2 Apply transmission fluid to the bearing and hold the inner race Then turn the outer race to check rotation 3 If there is any defect replace i...

Page 230: ...5 BRAKES KiSC issued 07 2007 A Tractor Manuals Scotland Please Do Not Copy Tractor Manuals Scotland...

Page 231: ...CONTENTS MECHANISM 1 STRUCTURE 5 M1 2 OPERATION 5 M2 KiSC issued 07 2007 A Tractor Manuals Scotland Please Do Not Copy Tractor Manuals Scotland...

Page 232: ...edals through the mechanical linkages The parking brake is a mechanical type which is designed to actuate the traveling brakes Pulling the parking brake lever 3 results in the same state as that obtai...

Page 233: ...TION 1 Cam Plate 2 Steel Plate 3 Brake Disc 4 Brake Case 5 Steel Ball 6 Brake Shaft Differential Gear Shaft 7 Brake Cam 8 Brake Cam Lever KiSC issued 07 2007 A Tractor Manuals Scotland Please Do Not C...

Page 234: ...the brake case is arranged between the brake discs During Braking When the brake pedal is pressed the linkage causes the brake cam lever 8 and brake cam 7 to turn into the direction of arrow shown in...

Page 235: ...S3 4 CHECKING DISASSEMBLING AND SERVICING 5 S4 1 CHECKING AND ADJUSTING 5 S4 2 PREPARATION 5 S5 1 Separating Rear Axle Case from Transmission Case 5 S5 3 DISASSEMBLING AND ASSEMBLING 5 S8 4 SERVICING...

Page 236: ...the brakes Adjust 5 S4 Ball holes of cam plate for uneven wear Replace 5 S9 Brake pedal return spring weaken or broken Replace Brake cam rusted Repair Poor Braking Force Too much free play in the brak...

Page 237: ...k Shaft O D 19 955 to 19 975 mm 0 78563 to 0 78642 in Brake Lever Link Bushing I D 20 100 to 20 150 mm 0 79134 to 0 79331 in Cam Plate Flatness 0 3 mm 0 012 in Cam Plate and Ball Height 20 9 to 21 1 m...

Page 238: ...to 83 1 Rear wheel mounting screw and nut 197 to 226 20 to 23 145 to 166 Rear axle case mounting M10 screws 48 1 to 55 9 4 9 to 5 7 35 4 to 41 2 Rear axle case mounting M10 nuts 60 8 to 70 5 6 2 to 7...

Page 239: ...ck nut 1 and turn the turnbuckle 2 to adjust it within the factory specifications IMPORTANT Keep the free travel in the right and left brake pedals equal NOTE The difference between the right and left...

Page 240: ...ed level if necessary IMPORTANT Use only multi grade transmission fluid Use of other fluides may damage the transmission or hydraulic system Refer to LUBRICANTS FUEL AND COOLANT See page G 8 Never wor...

Page 241: ...wiring harness from frnder W1015614 Tightening torque ROPS mounting screw M14 screw 166 7 to 196 1 N m 17 0 to 20 0 kgf m 123 to 144 ft lbs M12 screw 77 5 to 90 2 N m 7 9 to 9 2 kgf m 57 1 to 66 5 ft...

Page 242: ...brake case When reassembling Apply liquid gasket Three Bond 1208D or equivalent to joint face of the rear axle case and brake case after eliminate the water oil and stuck liquid gasket W1014856 Tight...

Page 243: ...4 Remove the brake cam plate 5 and steel balls When reassembling Place the brake discs 6 so that the hole A of brake discs should be overlapped 50 or more Apply liquid gasket Three Bond 1208D or equiv...

Page 244: ...f the cam plate flatness Measure the flatness diagonally at more than four locations 3 If the measurement is above the allowable limit replace it W10145650 Height of Brake Cam Plate and Ball 1 Measure...

Page 245: ...ate thickness with vernier calipers 2 If the measurement is less than the allowable limit replace it W10149690 Brake disc thickness Factory spec 4 6 to 4 8 mm 0 181 to 0 189 in Allowable limit 4 2 mm...

Page 246: ...6 FRONT AXLE KiSC issued 07 2007 A Tractor Manuals Scotland Please Do Not Copy Tractor Manuals Scotland...

Page 247: ...CONTENTS MECHANISM 1 STRUCTURE 6 M1 1 2WD TYPE 6 M1 2 4WD TYPE 6 M2 2 FRONT WHEEL ALIGNMENT 6 M3 KiSC issued 07 2007 A Tractor Manuals Scotland Please Do Not Copy Tractor Manuals Scotland...

Page 248: ...d the front axle is supported at its center with the front axle brackets 7 8 on the front axle frame 10 so that steering operation is stable even on an uneven grounds in a farm field 1 Slotted Nut 2 F...

Page 249: ...el gears 15 4 then the power is transmitted to the axle 1 The differential system allows each wheel to rotate at a different speed to make turning easier 1 Axle 2 Collar 3 Axle Flange 4 Bevel Gear 5 B...

Page 250: ...Kingpin is titled from the vertical as viewed from the front This angle is called kingpin angle a As with the camber kingpin angle reduces rolling resistance of the wheels and prevents any shimmy mot...

Page 251: ...It is called toe in The front wheels tend to roll outward due to the camber but toe in offsets it and ensures parallel rolling of the wheels Another purpose of toe in is to prevent excessive and uneve...

Page 252: ...6 1 CHECKING AND ADJUSTING 6 S6 2 PREPARATION 6 S8 1 Separating Front Axle Case from Front Axle Frame 6 S8 3 DISASSEMBLING AND ASSEMBLING 6 S11 1 2WD Type Front Axle 6 S11 2 4WD Type Front Axle 6 S13...

Page 253: ...ngs worn 2WD Type Replace 6 S18 Front axle rocking force too small Adjust 6 S7 Front wheel sway excessive Replace 6 S7 Tie rod end loose Tighten 6 S11 13 Air sucked in power steering circuit Bleed 7 S...

Page 254: ...nuckle Shaft Bushing Clearance O D I D 0 000 to 0 285 mm 0 00000 to 0 01122 in 27 880 to 27 900 mm 1 09764 to 1 09842 in 27 900 to 28 165 mm 1 09842 to 1 10886 in 0 4 mm 0 016 in Front Axle Middle Bos...

Page 255: ...51 mm 0 00197 to 0 00597 in 32 000 to 32 064 mm 1 25984 to 1 26228 in 32 000 to 32 025 mm 1 25984 to 1 26083 in 31 911 to 31 950 mm 1 25634 to 1 25787 in 0 20 mm 0 0079 in Pinion Shaft to Differential...

Page 256: ...Axle Case Boss Front Bushing Clearance O D I D 0 120 to 0 275 mm 0 00472 to 0 01083 in 49 950 to 49 975 mm 1 97224 to 1 96752 in 50 095 to 50 225 mm 1 97224 to 1 97736 in 0 50 mm 0 19685 in Front Axl...

Page 257: ...nut 24 5 to 29 4 2 5 to 3 0 18 1 to 21 7 Cylinder cover mounting screw 60 8 to 70 6 6 2 to 7 2 44 8 to 52 1 Front axle out mounting bolt and nut 123 to 147 12 6 to 15 0 91 1 to 108 5 Item N m kgf m f...

Page 258: ...just the tie rod length until the proper toe in measurement is obtained 4 Retighten the tie rod lock nut 1 and rod mounting screw 5 Attach the snap ring 3 4WD 1 Detach the snap ring 6 2 Loosen the tie...

Page 259: ...1 Jack up the tractor body then loosen the lock nut 2 2 Measure the adjusting screw tightening torque 3 If tightening torque is not within the factory specifications adjust the adjusting screw 1 4 Aft...

Page 260: ...lugs 3 and filling port plug 2 When reassembling Remove the filling port plug 2 and right and left check plugs 1 Fill with the new oil After filling reinstall the port plug 2 IMPORTANT Use KUBOTA SUPE...

Page 261: ...power steering hoses 1 2 and breather pipe 4 from steering cylinder 2 Remove cylinder covers 3 When reassembling W1013537 1 Propeller Shaft Front Cover 2 Propeller Shaft Rear Cover 3 Screw 4 Spring Pi...

Page 262: ...g screws and nuts 5 Remove the bracket rear mounting screws and nuts 6 Separate the front axle from front axle bracket When reassembling IMPORTANT Be sure to adjust the front axle rocking force See pa...

Page 263: ...tightening the slotted nut to the specified torque insert a cotter pin and bend it as shown in the figure Pack in the grease to the bearing in the front wheel hub W1022004 Tightening torque Front whe...

Page 264: ...and remove the steering cylinder 2 2 Remove the bracket mounting screw and nut and remove the front axle middle 3 When reassembling W1023704 Tightening torque Knuckle arm mounting bolt and nut 77 5 t...

Page 265: ...rchange right and left bevel gear case assemblies W1015066 Axle Flange and Front Gear Case 1 Remove the axle flange mounting screws 2 Remove the axle flange 1 When reassembling Apply grease to the O r...

Page 266: ...snap ring 1 5 Take out the bevel gears 5 6 with ball bearings and shims 8 When reassembling Install the shims 8 to their original position Install the oil seal 9 of bevel gear case noting its directio...

Page 267: ...crew 3 3 Remove the nipples 2 from steering cylinder 4 Remove the internal snap ring 4 5 Draw out the steering cylinder 5 When reassembling Apply liquid lock Three Bond 1372 or equivalent to the tie r...

Page 268: ...correctly noting their direction and apply gear oil to them Tighten up the lock nut 11 until the turning force of the spiral bevel pinion shaft reaches the factory specifications See page 6 S20 When p...

Page 269: ...12 When reassembling Apply molybdenum disulfide Three Bond 1901 or equivalent to the inner circumferential surface of the differential side gears 12 and differential pinions 4 W1017053 Tightening torq...

Page 270: ...lculate the clearance 3 If the clearance exceeds the allowable limit replace the bushing When reassembling Remove the bushing with a bushing puller W1032635 Clearance between front axle middle boss an...

Page 271: ...04 Clearance between differential case differential case cover and differential side gear Factory spec 0 050 to 0 151 mm 0 00197 to 0 00594 in Allowable limit 0 20 mm 0 0079 in Differential case bore...

Page 272: ...bly only to the front axle case 2 Measure the turning torque of spiral bevel pinion shaft 3 If the turning torque is not within the factory specifications adjust with the lock nut If the turning torqu...

Page 273: ...klash between 11T Bevel Gear and 16T Bevel Gear 1 Stick a strip of fuse spots on the bevel gear 1 with grease 2 Fix the front axle case bevel gear case and front gear case 3 Turn the axle 4 Remove the...

Page 274: ...ter 5 If the backlash is not within the factory specifications adjust with shim 3 Reference Thickness of adjusting shims 1 0 mm 0 039 in 1 2 mm 0 047 in 1 4 mm 0 055 in 1 6 mm 0 063 in 1 8 mm 0 071 in...

Page 275: ...ctory spec 0 120 to 0 275 mm 0 00472 to 0 01083 in Allowable limit 0 50 mm 0 01969 in Front axle case boss front O D Factory spec 49 950 to 49 975 mm 1 96653 to 1 96752 in Bracket bushing front I D Fa...

Page 276: ...7 STEERING KiSC issued 07 2007 A Tractor Manuals Scotland Please Do Not Copy Tractor Manuals Scotland...

Page 277: ...M2 3 HYDRAULIC PUMP 7 M3 4 STEERING CONTROLLER 7 M4 1 Control Valve 7 M5 2 Metering Device Gerotor 7 M5 3 Relief Valve with Check Valve 7 M6 4 Oil Flow 7 M7 5 STEERING CYLINDER 7 M10 KiSC issued 07 20...

Page 278: ...s composed of steering wheel steering controller steering cylinder and other components shown in the figure 1 Steering Wheel 2 Steering Shaft 1 3 Steering Shaft 2 4 Joint Shaft 2 5 Steering Controller...

Page 279: ...ol the directional movement of the front wheels Return oil from steering cylinder 2 passes through control valve 10 is sent to the PTO clutch valve When the engine is not operating and the steering wh...

Page 280: ...essure fed the oil drawn from the transmission case through oil filter to power steering circuit and main hydraulic circuit W1014295 1 Drive Gear 1 2 Coupling 3 Drive Gear 2 4 Driven Gear 1 5 Bushing...

Page 281: ...ice and a relief valve with check valve The metering device comprises a set of special gear called Gerotor 1 Port Cover 2 Hex Drive Assembly 3 Rotor 4 Drive Plate 5 Relief Valve 6 Valve Plate 7 Drive...

Page 282: ...e Gerotor All oil directed from the hydraulic pump to the steering cylinder passes through the metering device gerotor on its way This metering device is a trochoid pump As the steering wheel is turne...

Page 283: ...the relief valve will act as a check valve and help draw oil from the return oil line to the drain hose thus making it possible to steer the machine manually W1013440 1 Outlet Port 2 Check Valve 3 Au...

Page 284: ...is formed between P port from pump and T port to transmission case in the control valve and all oil from the hydraulic pump flows to T port W1013562 1 Steering Wheel 2 Valve Plate 3 Gerotor 4 Steerin...

Page 285: ...hich corresponds to the turn of the steering wheel 1 The oil which has passed through gerotor 3 flows back to the control valve in which it is directed to cylinder port R to operate steering cylinder...

Page 286: ...ut of steering cylinder in the directions opposite to those at a right turn W1016788 1 Steering Wheel 2 Valve Plate 3 Gerotor 4 Steering Cylinder 5 Steering Controller 6 Relief Valve P Pump Port T Tan...

Page 287: ...e rods connected to both knuckle arms guarantee an equal steering movement to both front wheels The steering cylinder provides force in both directions Depending on turning direction of the steering w...

Page 288: ...g 7 S5 2 Relief Valve Power Steering 7 S7 2 DISASSEMBLING AND ASSEMBLING 7 S8 1 Hydraulic Pump Power Steering Three Point System 7 S8 2 Steering Post and Steering Controller 7 S10 3 Steering Cylinder...

Page 289: ...lve malfunctioning Replace 7 S10 S11 Steering Force Fluctuates Air sucked in pump due to leaking or missing of oil Replenish Air sucked in pump from suction circuit Repair Excessive Steering Wheel Fre...

Page 290: ...ls min 3 87 Imp gals min 15 7 L min 4 15 U S gals min 3 45 Imp gals min Housing Depth of Scratch 0 09 mm 0 0035 in Bushing to Gear Shaft Clearance 0 020 to 0 081 mm 0 0067 to 0 0110 in 0 15 mm 0 0059...

Page 291: ...2WD 50 000 to 50 062 mm 1 96850 to 1 97094 in 50 100 mm 1 97244 in I D 4WD 55 000 to 55 074 mm 2 16535 to 2 16827 in 55 100 mm 2 16929 in Rod to Bushing Clearance 0 009 to 0 127 mm 0 00035 to 0 00500...

Page 292: ...cover mounting screw 39 2 to 44 1 4 0 to 4 5 28 9 to 32 5 Power steering right and left delivery hose retaining nut 24 5 to 29 4 2 5 to 3 0 18 1 to 21 7 Power steering main delivery hose retaining nu...

Page 293: ...2 Remove the power steering main delivery hose 2 When reassembling Install the copper washers firmly W1012529 Tightening torque Delivery pipe joint bolt 49 0 to 58 8 N m 5 0 to 6 0 kgf m 36 2 to 43 4...

Page 294: ...Open the loading valve completely 8 Set the engine speed Refer to Condition 9 Read and note the pump delivery at no pressure 10 Slowly close the loading valve to increase to the rated pressure As the...

Page 295: ...functions 5 Stop the engine 6 If the pressure is not within the factory specifications check the pump delivery line adjust the relief valve by the adjusting screw 1 or repair the power steering Condi...

Page 296: ...p assembly When reassembling Apply grease to the O ring and take care not to damage it W1016911 Tightening torque Independent PTO delivery pipe joint bolt 34 3 to 39 2 N m 3 5 to 4 0 kgf m 25 3 to 28...

Page 297: ...c pump to the tractor and mount the suction pipe and delivery pipe securely 2 Set the engine speed at 1300 to 1500 mm 1 rpm and operate the hydraulic pump at no load for about 10 minutes 3 Set the eng...

Page 298: ...eassembling inspect each part for wear and damage If seriously damage replace parts as sub assembly or assembly It is desirable to replace O rings and seals with ones Bleeding 1 Start the engine 2 Tur...

Page 299: ...ssembly 2 Steering Post Assembly mounting screw 3 Steering Controller Tightening torque Main delivery hose retaining nut 46 6 to 50 9 N m 4 8 to 5 2 kgf m 34 4 to 37 6 ft lbs Turning delivery hose ret...

Page 300: ...e from engine 4 Disconnect the tie rod 2 from knuckle arm 1 When reassembling After tightening the tie rod end slotted nut to the specified torque install a cotter pin as shown in the figure W1018652...

Page 301: ...rmly Apply liquid lock Three Bond 1324B or equivalent to the thread of tie rod joint 4 W1019025 Tightening torque Power steering hose retaining nut 24 5 to 29 4 N m 2 5 to 3 0 kgf m 18 1 to 21 7 ft lb...

Page 302: ...r 7 and draw out the cylinder rod 6 When reassembling Apply transmission fluid to the oil seal and O ring Apply liquid lock Three Bond 1324B or equivalent to the thread of tie rod joint 4 Tightening t...

Page 303: ...ith and outside micrometer 2 Measure the bushing I D with and inside micrometer or cylinder gauge and calculate the clearance 3 If the clearance exceeds the allowable limit replace the gear shaft and...

Page 304: ...side micrometer and calculate the clearance 3 If the clearance exceeds the allowable limit replace as a unit W1023059 Steering cylinder I D Factory spec 2WD 50 000 to 50 062 mm 1 96850 to 1 97094 in 4...

Page 305: ...8 HYDRAULIC SYSTEM KiSC issued 07 2007 A Tractor Manuals Scotland Please Do Not Copy Tractor Manuals Scotland...

Page 306: ...POINT HYDRAULIC SYSTEM 8 M3 4 HYDRAULIC CYLINDER 8 M4 5 LINKAGE MECHANISM 8 M5 1 POSITION CONTROL 8 M5 2 POSITION CONTROL WITH DRAFT OPERATION IF EQUIPPED 8 M7 3 MIXED CONTROL 8 M9 6 FRONT HYDRAULIC...

Page 307: ...Valve 4 Auxiliary Control Valve Option 5 Regulator Valve Refer to CLUTCH Section 6 Power Steering Controller Refer to STEERING Section 7 PTO Clutch Valve Refer to CLUTCH Section 8 Oil Filter 9 Cylinde...

Page 308: ...lic block assembly 2 to operate an implement s hydraulic actuator Takes out hydraulic power from the quick couplers 7 induced in the auxiliary control valves assembly 6 if equipped for the implements...

Page 309: ...ve 7 switches the oil to the hydraulic cylinder 9 for the three point hydraulic system or return to the oil tank transmission case 1 The hydraulic system has a relief valve 5 which restricts the maxim...

Page 310: ...to the hydraulic cylinder 4 Turning the lowering speed adjusting knob 1 clockwise decreases the lowering speed and counterclockwise increases lowering speed When the lowering speed adjusting valve 3 i...

Page 311: ...f the control lever The implement can be positioned at any height by moving the position control lever Fine position adjustment is also easy 1 Position Control Lever 2 Control Arm 3 Spool Drive Lever...

Page 312: ...o the Lowering position the control arm 2 rotates to the arrow Therefore the spool drive lever 1 moves around the fulcrum P and push the spool 3 and poppet 2 4 opening the Lowering circuit 5 When the...

Page 313: ...ed and is fed back to the control valve by means of the other linkage mechanism Position Control Operation W1019618 Lift 1 When the position control lever 2 is moved to the LIFT side the position cont...

Page 314: ...the lift arm 1 goes up Movement of the Link Under decreased Load 1 When the lift arm 1 goes up the traction load is decreased and the draft control rod 16 is returned 2 At the same time the arm 2 10...

Page 315: ...on control lever With the position control only when traction load increases slippage or engine stop may occur unless the implement is raise With the draft control only plowing depth cannot be kept co...

Page 316: ...on the implement such as front loader front blade and so on 1 Cap 2 Front Hydraulic Block 3 Relief Valve A To Implement Control Valve B From Implement Control Valve C To Position Control Valve P From...

Page 317: ...S9 4 Relief Valve Three Point Hydraulic System 8 S11 2 DISASSEMBLING AND ASSEMBLING 8 S14 1 Hydraulic Pump Power Steering Three Point Hydraulic System 8 S14 2 Hydraulic Cylinder 8 S16 3 Position Cont...

Page 318: ...ight Position control feedback rod improperly adjusted Adjust 8 S12 Top link length improperly adjusted Adjust Position control valve spool joint 1 improperly adjusted Adjust 8 S20 S21 Hydraulic arm s...

Page 319: ...trol valve Replace 8 S20 S21 Poppet 2 adjusting set screw improperly adjusted Adjust 8 S20 S21 Draft Control Malfunctioning Draft control linkage improperly adjusted Adjust 8 S13 Torsion bar weaken or...

Page 320: ...gals min 15 7 L min 4 15 U S gals min 3 45 Imp gals min Housing Bore Depth of Scratch 0 09 mm 0 0035 in Bushing to Gear Shaft Clearance 0 020 to 0 081 mm 0 0008 to 0 0032 in 0 15 mm 0 0059 in Gear Sha...

Page 321: ...S gals min 5 68 Imp gals min Housing Bore Depth of Scratch 0 09 mm 0 0035 in Bushing to Gear Shaft Clearance 0 020 to 0 081 mm 0 0008 to 0 0032 in 0 15 mm 0 0059 in Gear Shaft O D 14 970 to 14 980 mm...

Page 322: ...Arm Shaft to Bushing Clearance Right Clearance Left 0 125 to 0 230 mm 0 00492 to 0 00906 in 0 125 to 0 220 mm 0 00492 to 0 00866 in 0 50 mm 0 0197 in 0 50 mm 0 0197 in Hydraulic Arm Shaft O D Right O...

Page 323: ...0 6 1 8 to 2 1 13 0 to 15 2 3P delivery pipe joint bolt 49 0 to 69 0 5 0 to 7 0 36 2 to 50 6 Pump cove mounting screw 39 2 to 44 1 4 0 to 4 5 28 9 to 32 5 Hydraulic cylinder mounting screw and nut 77...

Page 324: ...ove side cover RH 1 2 Remove the power steering main delivery hose 2 When reassembling Install the copper washers firmly W1012497 Tightening torque Delivery pipe joint bolt 49 0 to 58 8 N m 5 0 to 6 0...

Page 325: ...F 7 Open the loading valve completely 8 Set the engine speed Refer to Condition 9 Read and note the pump delivery at no pressure 10 Slowly close the loading valve to increase to the rated pressure As...

Page 326: ...draulic Pump Test Using Flow meter Three Point Hydraulic System Preparation Remove 3P delivery pipe 2 1 between hydraulic pump 2 and front hydraulic block 3 When reassembling Apply grease to the O rin...

Page 327: ...prox 40 C 104 F 7 Open the loading valve completely 8 Set the engine speed Refer to Condition 9 Read and note the pump delivery at no pressure 10 Slowly close the loading valve to increase the pressur...

Page 328: ...elief plug 2 of front hydraulic block 3 and adjust with the adjusting shims 4 7 After the relief valve setting pressure test reset the position control lever stopper firmly Condition Engine speed Maxi...

Page 329: ...e lock nut 5 7 Set the engine speed at the maximum 8 Move the position control lever 1 to the lowest position and uppermost position 3 to 5 times to check the relief valve does not operate 9 Set the p...

Page 330: ...tach the test bar 3 see page G 48 to the top link bracket 2 8 Pull the test bar 3 upward and adjust the draft control rod 6 so that the lower link is raised when the top link bracket 2 and the top lin...

Page 331: ...hydraulic pump assembly When reassembling Apply grease to the O ring and take care not to damage it W1016911 Tightening torque Independent PTO delivery pipe joint bolt 34 3 to 39 2 N m 3 5 to 4 0 kgf...

Page 332: ...raulic pump to the tractor and mount the suction pipe and delivery pipe securely 2 Set the engine speed at 1300 to 1500 mm 1 rpm and operate the hydraulic pump at no load for about 10 minutes 3 Set th...

Page 333: ...t 3P delivery pipe 1 12 fender stay 13 and fenders 14 When reassembling Install the copper washers firmly W1021098 Tightening torque 3P delivery pipe 1 mounting screw 23 5 to 27 5 N m 2 4 to 2 8 kgf m...

Page 334: ...ped See page 8 S12 S13 W9632587 Lowering Speed Adjusting valve 1 Remove the lowering speed adjusting valve assembly from hydraulic cylinder block 2 Remove the internal snap ring 4 and remove the hydra...

Page 335: ...t put your hand into the hydraulic cylinder block because the hydraulic piston jumps out with a strong force which is dangerous When reassembling Install the piston noting O ring and back up ring 3 Se...

Page 336: ...ushings 3 and 4 When reassembling When press fitting new bushings 3 4 with a press fitting tool see page G 47 observe the dimensions described in the figure Apply transmission fluid to the hydraulic c...

Page 337: ...8 Tightening torque Position control valve mounting screws 23 6 to 27 4 N m 2 4 to 2 8 kgf m 17 4 to 20 2 ft lbs 1 Position Control Valve 1 Nut 1 2 Set Screw 3 Plate 1 4 Washer 5 Spring 6 Spring 7 Pop...

Page 338: ...When reassembling W1017128 4 Relief Vave Relief Valve 1 Remove the plug 9 and draw out the spring 5 and the poppet 4 2 Take out the valve seat 3 When reassembling Take care not to damage the O rings...

Page 339: ...ed W1037832 Tightening torque Cylinder safety valve assembly 39 2 to 49 0 N m 4 0 to 5 0kgf m 28 9 to 36 2 ft lbs Cylinder safety valve lock nut 58 8 to 78 5 N m 6 0 to 8 0kgf m 43 4 to 57 9 ft lbs 1...

Page 340: ...pply grease to the bushings 14 roller 13 draft control link 1 11 and disc springs 17 Tap in the spring pins 15 16 so that their split portion as shown in the figure left W1022485 3 SERVICING 1 Hydraul...

Page 341: ...linder internal surface for scoring or damage 2 Measure the cylinder I D with a cylinder gauge 3 If the measurement exceeds the allowable limit replace the hydraulic cylinder block W1026023 Clearance...

Page 342: ...mission fluid see page G 8 to test the operating pressure of the cylinder safety valve W1029814 Clearance between hydraulic arm shaft and bushing Factory spec Right 0 125 to 0 230 mm 0 0049 to 0 0091...

Page 343: ...9 ELECTRICAL SYSTEM KiSC issued 07 2007 A Tractor Manuals Scotland Please Do Not Copy Tractor Manuals Scotland...

Page 344: ...CHANISM 1 WIRING DIAGRAM 9 M1 2 OPERATOR PRESENCE CONTROL 9 M3 1 ELECTRIC CIRCUIT 9 M3 2 SEAT SWITCH AND OPC TIMER 9 M8 KiSC issued 07 2007 A Tractor Manuals Scotland Please Do Not Copy Tractor Manual...

Page 345: ...3 R 0 5 B W 0 5 B R 0 5 B 2F B R 0 5 B L 3 B R 0 5 B L 1 25 B L 0 5 B 0 5 R B 3 B W 3 B R 3 R W 3 R W 3 R 0 5 B W 0 5 B R 1 25 B L 0 5 R L 0 85 W 0 5 Y 0 85 R W 15A 15A 5A 5A 5A 10A 10A 2 B 2 B Workin...

Page 346: ...ht Green W B White Black Br Brown Lg B Light Green Blue W G White Green G Green Lg Y Light Green Yellow W L White Blue G L Green Blue Or Orange W R White Red G R Green Red P Pink W Y White Yellow G W...

Page 347: ...of running the PTO lever PTO clutch control lever in OFF position and the range gear shift lever Lo R Hi in Neutral position the current flow is shown in Figure below NOTE PTO switch is ON when PTO l...

Page 348: ...on Range gear shift switch is ON when range gear shift lever in Neutral position 1 Battery 2 Main Switch 3 Starter Relay 4 Starter 5 PTO Switch 2 pieces 6 Seat Switch 7 Range Gear Shift Switch 2 piece...

Page 349: ...ange gear shift switch is ON when range gear shift lever in Neutral position 1 Battery 2 Main Switch 3 Starter Relay 4 Starter 5 PTO Switch 2 pieces 6 Seat Switch 7 Range Gear Shift Switch 2 pieces 8...

Page 350: ...on Range gear shift switch is ON when range gear shift lever in Neutral position 1 Battery 2 Main Switch 3 Starter Relay 4 Starter 5 PTO Switch 2 pieces 6 Seat Switch 7 Range Gear Shift Switch 2 piece...

Page 351: ...in OFF position Range gear shift switch is ON when range gear shift lever in Neutral position 1 Battery 2 Main Switch 3 Starter Relay 4 Starter 5 PTO Switch 2 pieces 6 Seat Switch 7 Range Gear Shift...

Page 352: ...seat and ON again when the seat is tilted forward The OPC timer retains in ON position for about one second after cutting the current supply W1013834 1 Seat A Seat Switch is ON 2 Sensor Bar B Seat Swi...

Page 353: ...5 Starter and Starter Relay 9 S15 6 Glow Control System 9 S16 7 Engine Stop Solenoid 9 S17 8 Charging System 9 S18 9 Combination Switch 9 S20 10 Hazard Switch 9 S22 11 Hazard Unit 9 S22 12 Fuel Level...

Page 354: ...cted or improperly connected Repair or replace 9 S8 Slow blow fuse blown Replace G 32 Fuse Blown Frequently Short circuit Repair or replace Battery Discharges Too Quickly Battery defective Recharge or...

Page 355: ...or improperly connected between main switch ST terminal and safety switch between battery positive terminal and starter motor B terminal Repair or replace Starter motor defective Repair or replace 9...

Page 356: ...or improperly connected between main switch AC terminal and panel board between panel board and alternator L terminal Repair or replace Charging Lamp Does Not Go Off When Engine is Running Short circ...

Page 357: ...r improperly connected between combination switch T terminal and tail lights Repair or replace Hazard and Turn Signal Light Does Not Light Fuse blown 15 A Replace G 32 Bulb blown Replace G 32 Wiring h...

Page 358: ...iring harness disconnected or improperly connected between panel board and engine oil pressure switch Repair or replace Circuit in panel board defective Replace 9 S81 Fuel Gauge Does Not Function Fuel...

Page 359: ...29 0 mm 1 142 in Mica Undercut 0 50 to 0 80 mm 0 020 to 0 031 in 0 2 mm 0 008 in Brush Length 15 0 mm 0 591 in 11 0 mm 0 433 in Brush Holder and Holder Support Resistance Infinity Brush Length 10 5 mm...

Page 360: ...w are especially specified For general use screws bolts and nuts See page G 9 W1012736 Item N m kgf m ft lbs Alternator pulley nut 58 3 to 78 9 5 95 to 8 05 43 0 to 58 2 Starter terminal nut 5 9 to 11...

Page 361: ...and regulator may result 1 CHECKING AND ADJUSTING 1 Battery Battery Voltage 1 Stop the engine and turn the main switch off 2 Connect the COM lead of the voltmeter to the battery s negative terminal p...

Page 362: ...eading must be taken at the highest electrolyte level Reference Specific gravity slightly varies with temperature To be exact the specific gravity decreases by 0 0007 with an increase of 1 C 0 0004 wi...

Page 363: ...and the AC terminal 3 If 0 ohm is not indicated the B AC contacts of the main switch are faulty Main Switch at START Position 1 Turn and hold the main switch key at the START position 2 Measure the re...

Page 364: ...esistance with an ohmmeter across the terminal 3 and the terminal 2 and across the terminal 3 and the terminal 6 3 If 0 ohm is not indicated these contacts of the main switch are faulty W1064191 Resis...

Page 365: ...minals 3 Measure the resistance between terminals 4 If any safety switch is defective replace it W1066307 Resistance Across switch terminals When switch is pushed 0 When switch is released Infinity 1...

Page 366: ...shift lever is NEUTRAL position Checking System W1042141 Step PTO lever Range gear shift lever Operator OPC system is NORMAL if 1 OFF Switch ON L or R or H Switch OFF Gets up from the seat Seat switc...

Page 367: ...battery negative terminal and the timer 2 terminal and across the battery negative terminal and the bulb terminal 4 Connect jumper leads across the timer 1 terminal and the bulb terminal 5 The bulb li...

Page 368: ...otor housing and the battery negative terminal post 7 If the motor does not run check the motor Magnet Switch Test 1 Disconnect the battery negative cable from the battery 2 Disconnect the battery pos...

Page 369: ...rminal and the chassis 4 If the voltage at either position differs from the battery voltage the wiring harness or main switch is faulty W1093015 Glow Plug Continuity 1 Disconnect the lead from the glo...

Page 370: ...oid Coil 1 Disconnect the 2P connector from engine stop solenoid 2 Measure the resistance between the terminal 1 terminal 2 and body 3 If resistance differs from the factory specifications the coil is...

Page 371: ...ure the voltage across the terminal 1 Positive and chassis Negative 7 If the voltage differs from the battery voltage the wiring harness is faulty W1099885 8 Charging System Alternator 1 Disconnect th...

Page 372: ...the measurement is less than the factory specifications disassemble the alternator and check the IC regulator Reference Once the engine has started the alternator temperature rises quickly up to an am...

Page 373: ...and main switch W1108114 Head LIght Switch Continuity when Setting Switch at OFF Position 1 Disconnect the connector 8P from the combination switch 2 Set the light switch to the OFF position 3 Measure...

Page 374: ...ector Voltage Turn Signal Switch 1 Disconnect the connector 8P from the combination switch 2 Measure the voltage with a voltmeter across the connector B2 terminal and chassis when the main switch is O...

Page 375: ...re the voltage with a voltmeter across the h terminal and chassis 3 If the voltage differs from the battery voltage the wiring harness is faulty W1053948 Resistance Switch at OFF a Terminal c Terminal...

Page 376: ...nuity 1 Measure the resistance across the sensor terminal and the chassis 2 If resistance does not meet factory specifications the sensor is faulty W1121784 Resistance Sensor terminal its body Referen...

Page 377: ...ch 1 Remove the drive end frame 1 mounting screws 2 Take out the overrunning clutch 2 ball 3 spring 4 gears 5 rollers 6 and retainer 7 When reassembling Apply grease to the gear teeth of the gears 5 a...

Page 378: ...cover screws and the B terminal nut and remove the rear end cover W1067274 Brush Holder 1 Unscrew the two screws holding the brush holder and remove the brush holder 1 W1134820 IC Regulator 1 Unscrew...

Page 379: ...ve the rear end frame 1 W1161022 Rotor 1 Press out the rotor 1 from drive end frame 3 IMPORTANT Take special care not to drop the rotor and damage the slip ring or fan etc W1136998 Retainer Plate 1 Un...

Page 380: ...ning Clutch 1 Inspect the pinion for wear or damage 2 If there is any defect replace the overrunning clutch assembly 3 Check that the pinion turns freely and smoothly in the overrunning direction and...

Page 381: ...hamfer the segment edges Brush Wear 1 If the contact face of the brush is dirty or dusty clean it with emery paper 2 Measure the brush length A with vernier calipers 3 If the length is less than the a...

Page 382: ...ontinuity across the segments of the commutator with an ohmmeter 4 If it does not conduct replace the armature W1148803 Field Coil 1 Check the continuity across the lead 1 and brush 2 with an ohmmeter...

Page 383: ...slip rings with an ohmmeter 2 If the resistance is not the factory specification replace it 3 Check the continuity across the slip ring and core with an ohmmeter 4 If infinity is not indicated replac...

Page 384: ...E Do not use an auto digital multimeter Because it s very hard to check the continuity of rectifier by using it W1152035 IC Regulator 1 Check the continuity across the B terminal and the F terminal of...

Page 385: ...12 2004 12 S EI EI e EDITOR KUBOTA FARM INDUSTRIAL MACHINERY SERVICE LTD 64 ISHIZU KITAMACHI SAKAI KU SAKAI CITY OSAKA 590 0823 JAPAN PHONE 81 72 241 1129 FAX 81 72 245 2484 E mail ksos pub kubota co...

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