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4 Trouble Shooting

Condition Cause

Remedy

Engine does not start.

Defective key switch
Insufficient charging or completely discharged
battery.
No fuel.
Air mixed in the fuel system.

Clogged fuel filter.
Irregular of improper fuel supply.

Defective glow plug.
Improper viscosity of lubricating oil.
Clogged air cleaner.
Not compressed.
Defective engine stop solenoid.

Connect or correct contact points properly.
Charge.

Replenish the fuel.
Correct points allowing the air to enter the
fuel.
Replace the fuel filter.
Trouble of injection pump. Have corrected
in work specified by BASC.
Replace.
Check and change.
Clean the air cleaner.
Check and correct each part.
Check or replace wiring.

Irregular engine speed

Air mixed in the fuel system.
Uneven fuel injection.

Clogged fuel filter.
Trouble of speed governor.
Improper function of engine main body.

Discharge air from the fuel.
Trouble of injection pump. Have corrected
or replaced in a work specified by BASC.
Replace the fuel filter.
Check and adjust.
Overhaul, check and correct each part.

Engine stops during
operation

No fuel in fuel tank.
Clogged fuel filter.
Air mixed in the fuel system.

Improper functions of engine main body.

Replenish fuel.
Replace the filter.
Correct points to allow the air to enter the fuel
system.
Check and correct each part.

Engine overheat

Insufficient cooling water.

Loosened or slipping fan belt.
Failure of fan belt.
Clogged radiator.
Clogged radiator fin.
Cooling water passage clogged with dust, fur, etc.
Improper function of thermostat.
Insufficient lubricating oil.
Overload.

Replenish the cooling water, and check and
repair water leaking points.
Clean oil dust, etc. and retighten.
Replace.
Clean the radiator.
Clean.
Wash.
Check and replace
Replenish.
Decrease the load.

* BASC : BOSCH AUTOMOTIVE SYSTEMS CORPORATION

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Содержание ST330

Страница 1: ...ST330 ST333 Chapter 1 GENERAL 1 Chapter 2 ENGINE 23 Chapter 3 TRACTOR MAIN BODY 64 WORKSHOP MANUAL MODEL NOTE This WORKSHOP MANUAL for the Tier 3 ENGINE of ST330 and ST333 Tractor...

Страница 2: ...ication Performances 1 3 Precautions Before Servicing 1 4 Basic Understanding on Servicing 1 5 Sequence of Dismantling the Tractor 1 6 Installation and Trial Run WORKSHOP MANUAL MODEL NOTE This WORKSH...

Страница 3: ...e Servicing 5 1 4 Basic Understanding on Servicing 5 1 METRIC BOLT TORQUE SPECIFICATIONS 6 1 5 Sequence of Dismantling the Tractor 7 1 FLOW CHART 7 2 ENGINE AND HST UNIT REMOVAL 9 3 and HST 8 3 TRANSM...

Страница 4: ...ST series tractors were developed this time These are economical tractors provided with practical functions and high power They meet users needs according to efficient and economical specifications r...

Страница 5: ...1 Chapter 1 GENERAL...

Страница 6: ...2 1 1 External Views 002Y Unit mm Model A B C D E F G ST 330 9 3 ST 333 9 3 2825 2490 300 1390 1600 1150 1115 953 1345 ST 330 HST ST 333 HST 2825 2425 240 1500 1600 1100 1155...

Страница 7: ...eed Change method Hydrostatic Transmission Selective Sliding Shifter Running Speed Changes 3 Steps Forward and 3 Steps Reverse 9 Speeds Forward and 3 Speeds Reverse Differential 4 Pinion Spiral Bevel...

Страница 8: ...ne speed for 540rpm Rear PTO rpm 2455 2500 Engine speed for 2000rpm Mid PTO rpm 2420 2 speeds PTO Model Engine speed for 540rpm Rear PTO rpm 2485 PTO speed at engine speed 2800 rpm rpm 608 893 Capacit...

Страница 9: ...ine transmission and hydraulic components have been specially manufactured with a high degree of accuracy Care should be exercised to maintain them in a clean state Do not disassemble unnecessarily 2...

Страница 10: ...8 65 7 83 3 6 7 8 5 74 5 94 1 7 6 9 6 10T 11T 92 0 116 9 4 11 8 99 0 126 10 1 12 9 M14 4T 4 8 2 0 62 8 80 4 6 4 8 2 1 5 69 6 87 2 7 1 8 9 7T 8T 8 8 104 132 10 6 13 4 117 148 11 9 15 1 10T 11T 139 175...

Страница 11: ...W CHART 1 Manual Transmission Model 2 Hydrostatic Transmission Model Front axle Engine Clutch case Transmission Rear axle Hydraulic cylinder case Front axle Engine Clutch case Transmission Front Trans...

Страница 12: ...e gauge from leaking out causing the gauges to give a false indication during operation 2 BONNET HOOD Disconnect the negative terminal from the battery Disconnect the connector for head lamps Remove t...

Страница 13: ...battery support Remove the radiator assembly 7 DASH BOARD SHROUDING Remove the cover R H and L H and dash board Rear Remove the screws securing the steering column center shrouding disconnect the ele...

Страница 14: ...rom the tractor 10 SIDE STEP Remove the floor mat and sponge Remove the foot throttle linkage return spring remove cotter pin and disconnect the foot throttle linkage from underneath the right side st...

Страница 15: ...ard to gain access to the shaft universal joint Remove the universal joint locking bolts from the front axle and transmission end universal joints and if necessary remove the drive shaft 14 POWER STEE...

Страница 16: ...BATTERY BASE FRONT AXLE SUPPORT Remove the bolts and battery base from on the front axle support Lift the engine with the hoist and put the safety stand under the clutch housing Heat the front axle s...

Страница 17: ...tch housing 21 CLUTCH HOUSING HST ONLY Remove the HST test port from top of clutch housing Note the HST control rod length before removing for reassembly Remove the cotter pin and disconnect the clutc...

Страница 18: ...14 22 HST UNIT Remove the HST unit from the extension housing 23 HST SHIFT LINK ASSEMBLY Remove the E clip and remove the HST control pedal 025Y 026Y...

Страница 19: ...FRONT SIDE COVER HIGH PRESSURE INLET TUBE Disconnect the FWD shaft from the transmission see ENGINE REMOVAL Open the hood and remove the front side cover Disconnect the high pressure inlet tube from t...

Страница 20: ...SSION COVER PLATE Remove the transmission cover Flower 6 CASE COVER BRAKE ROD Remove the bolt banjo bolt and return pipe from the clutch housing transmission housing HST Model only Remove the step pla...

Страница 21: ...AND RANGE GEAR CHANGE LEVER ASSEMBLY Remove the split pins and separate the shift plates from the mid PTO rear PTO change lever and range gear change lever Remove the mid PTO rear PTO and range gear...

Страница 22: ...t cover to the center housing Using a hoist remove the lift cover 11 REAR AXLE ASSEMBLY Remove the clamp of the differential lock pedal Remove the rear axle retaining bolts and nuts and remove the rea...

Страница 23: ...t toward the range counter gear 1 on the drive pinion shaft to avoid the interferences when separate the transmission 2 from the transmission 1 refer to SECTION 3 3 TRANSMISSION 1 for 9X3 and SECTION...

Страница 24: ...MISSION AND TRANSMISSION When install the transmission 1 and transmission 2 take care as follows on Model 9 3 manual transmission Align the flat face on the PTO counter shaft of transmission 1 and cou...

Страница 25: ...shaft of the centering spring 4 FRONT AXLE SUPPORT BOLT Apply the thread sealant on the bolts thread when install the front axle support and tighten to 117 148 N m 11 9 15 1 kgf m 5 POWER STEERING PI...

Страница 26: ...low throttle position and foot throttle to the free position 4 Turn the key switch to the Start position rotate the starting motor until the oil pressure lamp goes off About 20 30 seconds 5 Turn the...

Страница 27: ...w 24 2 2 Engine Specifications 25 2 3 Disassembly Inspections and Reassembly 26 1 DISASSEMBLY 26 2 DISASSEMBLY AND INSPECTION OF ENGINE MAIN PARTS 30 3 ENGINE REASSEMBLY 52 2 4 Trouble Shooting 62 2 5...

Страница 28: ...Chapter 2 ENGINE Tractor Model Engine Model ST330 N843 Tire 3 ST333 N843 Tire 3 Due to Pollutant Regulations some of parts relating to Engine exhaust are not available for spares as an individual par...

Страница 29: ...24 2 1 Engine Sectional View 100Y 101Y...

Страница 30: ...tem Injection pump type Nozzle type Fuel Fuel consumption Bosch type Throttle type Diesel fuel oil 200 g PSH 0 46 lb HP Hr Lubricating system Lubricating method Filtering method Lubricating oil quanti...

Страница 31: ...eal washer 7 Injection pipe 8 Injection pump assembly Note 1 Remove the injection pipes and engine stop solenoid before remove the injection pump 2 Raise the injection pump and disconnect the governor...

Страница 32: ...g 13 Oil pressure switch 14 Thermostat case Gasket 15 Head cover O ring 16 Rocker arm and support bracket assembly O ring Cap NOTE Remove the caps from each intake valves and exhaust valves 17 Push ro...

Страница 33: ...pulley 23 Hydraulic oil pump assembly Power steering oil pump assembly 24 Timing gear case assembly Gasket NOTE Remove the engine stop solenoid and injection pump assembly at first 25 Idle gear Oil pu...

Страница 34: ...2 Piston and connecting rod assembly NOTE 1 Before extracting piston remove the carbon deposit from the TDC in the cylinder 2 Place the connecting rod cap and bearing removed in order of the cylinders...

Страница 35: ...the front and of the rocker shaft and slowly withdraw rocker shaft while at the same time removing the rocker arms springs and shims 1 M8 bolt 2 Rocker arm shaft 3 Rocker arm 4 Spring 5 Shim Inspecti...

Страница 36: ...d assembling value Repair value Less than 0 05 More than 0 12 2 Valve guide and valve stem Check the head and stem of each valve and replace if burnout wear or deformation is remarkable Measure the ou...

Страница 37: ...idth and recess using seat cutters of 15 45 and 75 When the seat recess exceeds the service limit replace the cylinder head Valve seat recess mm Standard assembling value Service limit 0 85 1 15 1 8 1...

Страница 38: ...he free length and spring force with a spring tester and replace if the service limit is exceeded 5 Inner face of combustion chamber Pull out the gasket from the cylinder head Check and clean the comb...

Страница 39: ...when checked visually Measure the cylinder bore at the top center and bottom respectively in the crankshaft direction A and the direction at right angle to it B If the repair value is exceeded replac...

Страница 40: ...he thrust direction calculate the clearance and replace if the repair value is exceeded Measure the piston pin hole diameter and piston pin outside diameter and replace if the clearance exceeds the se...

Страница 41: ...service limit is exceeded Piston kit composed of piston and piston rings are available Piston kit Model Size Part code No N843 STD 115017541 Piston ring installing procedure Install the piston ring to...

Страница 42: ...to the crankshaft measure the axial play and replace the connecting rod if the service limit is exceeded 125Y 1 Gauge 2 Piston pin 3 Torsion 4 Flat part of aligner 5 5 Pin Clearance between bush and...

Страница 43: ...st part of the plasti gauge 3 If the oil clearance exceeds the service limit according to the result of the measurement replace the metal Reassembly piston and connecting rod 1 Heat the piston to abou...

Страница 44: ...of the measurement replace the metal and or clank shaft Clearance between crankshaft center journal and metal oil clearance mm Model Standard assembling value Service limit N843 0 044 0 102 0 2 Thrus...

Страница 45: ...l side facing the chamfered side frontward 2 Install the thrust washer facing the oil groove to the crankshaft thrust surface Bearing holder tightening torque 49 0 53 9 N m 5 0 5 5 kgf m 3 Install the...

Страница 46: ...N843 0 044 0 116 0 2 131Y NOTE 1 Measure the dimensions in the A and B directions at the position 1 and 2 in the right figure avoiding the oil hole of the bearing bush and calculate difference from th...

Страница 47: ...damage irregular wear ellipticity comicalness and shaft diameter If service limit is exceeded replace the bearing bush and or crankshaft Measure the dimensions of the journal and pin in the AA and BB...

Страница 48: ...service limit is exceeded 2 Correct insignificant uneven wear or scars on the cam surface using oil stone or the like A Height of intake exhaust valve cams mm Standard assembling value Service limit 3...

Страница 49: ...44 13 Oil flow 138Y V Suction filter W Oil pump X Relief valve Y Oil filter Z Oil pressure switch...

Страница 50: ...d vane to 0 1 0 15 mm See the assembling order 13 164Y 15 Oil filter Structure and Functions 1 The cartridge type oil filter is excellent in filtering performance 2 Since it is of the full flow type w...

Страница 51: ...place if the valve is opened even only slightly at normal temperature 2 Immerse the thermostat in water increase the water temperature gradually and check the valve opening temperature and valve lift...

Страница 52: ...g crushed under the atmospheric pressure shown by black arrow mark 144Y Inspection a Check the radiator pipe and reserve tank for water leakage and repair or correct if any b Check the radiator fin an...

Страница 53: ...r case The flyweight ass y is installed to the camshaft and its movement is transmitted to the control rack of the injection pump through the slider control lever link The spring which controls the mo...

Страница 54: ...or Remedy 1 Engine does not start 1 Fuel Shortage or air mixed in 2 Defective engine stop solenoid 1 Replenish fuel check air entering part bleed air 2 Check and replace the electric system 2 Engine s...

Страница 55: ...nished super precisely to inject the fuel which is fed from the injection pump under pressure to the combustion room in good condition Components as shown in the right figure are incorporated The fuel...

Страница 56: ...n the dustpan also 2 If soot or oil has stuck to the element immerse it in neutral detergent for about 15 minutes and then wash by shaking several times Rinse in clean water sufficiently and dry natur...

Страница 57: ...ly 1 Relief valve assembly with O Ring Relief valve tightening torque to Relief valve tightening torque 49 59 N m 5 0 6 0 kgf m 2 Crank shaft and bearing holder assembly Cylinder block to bearing hold...

Страница 58: ...plate Rear plate tightening torque 22 6 28 4 N m 2 3 2 9 kgf m 6 Flywheel Align the hole to the roll pin on the crankshaft Fly wheel tightening torque 73 78 N m 7 4 8 0 kgf m 7 Piston and connecting r...

Страница 59: ...side so that the figures increase gradually Tighten the connecting rod cap with the specified torque and check for the axial play Connecting rod tightening torque 49 54 N m 5 0 5 5 kgf m NOTE 1 After...

Страница 60: ...level gauge and gauge guide using 2 O Rings 11 Front plate Install the front plate together with the gasket 12 Camshaft ass y Tachometer shaft Plate Install the tachometer shaft Install the cam shaft...

Страница 61: ...nstalled 3 Turn the oil pump cover clockwise and counterclockwise fix the hole at the center of the spring pin inserting hole moving distance and then install the gear case Adjust the shims so that th...

Страница 62: ...and nut Injection pump tightening torque 13 17 N m 1 3 1 7 kgf m 166Y 167Y 17 Injection timing adjustment IMPORTANT This Tier 3 type engine cannot inspect and adjust spill timing If injection pump is...

Страница 63: ...under 0 7 111147490 t 1 3 More than 0 7 less than 0 8 111147500 t 1 4 NOTE Four smallest digits of the part code No are stamped on the top surface of the head gasket Tighten the cylinder head in sever...

Страница 64: ...from the front side and adjust the No 2 intake and No 3 intake and exhaust valves Lock nut tightening torque 11 8 15 7 N m 1 2 1 6 kgf m 24 Oil pressure switch Oil pressure switch tightening torque 15...

Страница 65: ...ghtening torque 15 25 N m 1 5 2 5 kgf m 31 Exhaust manifold Install the exhaust manifold with gasket 32 Alternator Install the alternator taking care to the direction of the adjusting plate 33 V belt...

Страница 66: ...peed governor Improper function of engine main body Discharge air from the fuel Trouble of injection pump Have corrected or replaced in a work specified by BASC Replace the fuel filter Check and adjus...

Страница 67: ...ce Replace Starting motor does not operate Loosened or disconnected wiring of each part Dropped battery voltage Defective safety switch Trouble in starting motor Disconnected wire of fusible link Chec...

Страница 68: ...h of valve seat Intake 1 66 1 87 2 5 Exhaust 1 66 1 73 2 5 Bore 84 84 84 019 84 2 Distortion of upper face of cylinder block Less than 0 05 0 12 Skirt diameter longer diameter 83 955 83 948 83 963 83...

Страница 69: ...crank pin 1 6Z Crankshaft deflection Less than 0 03 More than 0 06 Axial play of crankshaft 0 1 0 4 0 5 Thickness of thrust washer 3 0 2 95 3 00 2 8 O D I D of bush journal metal 68 72 Clearance betwe...

Страница 70: ...charge rate min Engine speed 2500rpm Discharge pressure 294 490 kP 3 5 kgf c Oil temperature 50 80 SAE30 16 2 Oil pressure switch operating pressure kPa kgf cm2 29 4 0 3 19 6 39 2 0 2 0 4 Relief press...

Страница 71: ...re of radiator cap negative pressure valve kPa kgf c 73 5 0 75 88 2 0 9 Operation start pressure of radiator cap pressure valve kPa kgf c Less than 4 9 0 05 Type M001T66081 No of teeth of pinion gear...

Страница 72: ...SPECIFICATIONS 87 3 NAME OF UNITS 87 4 TRANSMISSION 1 90 5 HST UNIT 93 6 INSPECTION AND ADJUSTMENT 104 3 5 Transmission 2 Rear Transimission 116 1 SECTIONAL VIEW 116 2 TRANSMISSION 2 FOR 9 3 MODEL 118...

Страница 73: ...4 CONTROL VALVE ASSEMBLY 161 5 CONTROL VALVE ASSEMBLY 165 6 REMOTE CONTROL VALVE 178 7 TROUBLE SHOOTING 182 3 10 Electric Units and Accessories 183 1 INTRODUCTION 183 2 COMPONENTS LOCATION 185 3 DESCR...

Страница 74: ...64 Chapter 3 TRACTOR MAIN BODY...

Страница 75: ...linder for power steering Remove the nuts and adapters for power steering from front axle support Remove the nut M16 of the arm right and take out the spring washer and spacer Remove the bolt M8 12 of...

Страница 76: ...d ass y when removing the arm In the reassembling procedure after the order 5 install it temporarily together with the arm 4 Case cover final Remove the wheel shaft and final gear bevel together 5 Tra...

Страница 77: ...he final pinion and bearing from in the idler case Remove the bearing king pin O ring and snap ring from idler case 8 Wheel shaft case left NOTE When any shims have been installed between the case and...

Страница 78: ...aft case right 12 Drive pinion Remove the lock nut and extract the drive pinion front bearing and shim to the inside of the case NOTE Confirm the thickness and number of the shims Remove the oil seal...

Страница 79: ...place the final gear and final pinion if the backlash exceeds the service limit 3 Oil seal O ring Shaft spline Replace the oil seal and O ring of oil leaks to the outside When the service limit is exc...

Страница 80: ...en reusing the bolts remove oil and stain and tighten using lock washer without fail Ring gear tightening torque N m kgf m 49 62 7 5 0 6 4 318 1Y 1 Replace the thrust washer of the differential pinion...

Страница 81: ...t the spline Lock the nut at the time of measurement 2 Backlash of bevel gear differential After assembling the drive pinion adjust the backlash of the bevel gear in the following procedure 1 Place th...

Страница 82: ...g value 54 56 inside outside 45 NOTE To ensure correct steering operation the stopbolt should protrude a minimum of 23 mm from the casing 323Y 324Y 6 FRONT WHEEL 1 Specifications ST330 ST333 Tire size...

Страница 83: ...le plate foot stepping type No of clutch plates 1 facing 2 Disk O D Bore Thickness ST330 333 224 150 8 65 t 8 0 at 550 kgf compressed Release lever height Above flywheel surface ST330 333 36 1 1 mm Fo...

Страница 84: ...nd bearing together frontward Disconnect the wire and drive out the spring pin Remove the snap ring extract the clutch shaft leftwards and take out the clutch fork from the case For Manual Transmissio...

Страница 85: ...l noise b Uneven rotation c Excessive free play d Scoring on inner race surface NOTE Do not wash the bearing since it is of non oil replenishing type 4 Release hub and clutch fork Replace the release...

Страница 86: ...bearing for satisfactory condition 9 3 model only installed 7 Clutch shaft Check the clutch shaft for smooth operation If the play of the clutch shaft and clutch case is excessive replace the bush Cl...

Страница 87: ...ice tool and tighten them evenly to the flywheel NOTE On Model ST 329 since the clutch ass y fixing bolts are different in length 2 types care should be taken about combination with the bolt holes bol...

Страница 88: ...d 1 Excessive play of clutch pedal 2 1 Excessive wear of clutch components 2 2 Distortion of disk ass y 2 3 Play generated due to wear of pilot bearing 2 4 Uneven wear of disk hub and drive 1 Adjust t...

Страница 89: ...in slide gear 2 nd Main slide gear Reverse Counter shaft Main counter shaft Range main shaft Range gear High Range gear Middle Range gear Low PTO counter shaft Drive pinion 4WD slide gear 4WD counter...

Страница 90: ...ission 2 2 Turn the flat face of the PTO countershaft 4 toward the range counter gear 5 on the drive pinion shaft 6 to avoid the interferences when separate the transmission 2 from the transmission 1...

Страница 91: ...g from the housing NOTE 1 When the rod is pulled out a balk pin and steel ball come out Take care not to miss them 2 Remove the spring installed below the steel balls 3 Counter shaft main Remove the b...

Страница 92: ...er shaft Remove the snap ring 32 collars thrust washers 4WD counter gear and needle bearings from PTO counter shaft Remove the snap ring 55 fixing the bearing 6006 in the middle of the housing Driving...

Страница 93: ...er fork Be careful not to miss them Drive out the spring pin and remove the change lever Remove the shift arm from the inside of the housing 9 Drive Shaft Retainer Oil seal Remove it from clutch housi...

Страница 94: ...place if the service limit is exceeded Backlash of gear mm Standard assembling Value Service limit 0 04 0 16 0 6 3 Shifter fork and slide gear Replace if the service limit is exceeded Clearance betwee...

Страница 95: ...Spring for the main transmission is shorter one and the longer one is for 4WD 3 Install the fork after confirming that the steel ball has been positively installed Set the shifter rod 1st 3rd at the...

Страница 96: ...86 1 SECTIONAL VIEW 360Y 3 4 Transmission 1 for HST...

Страница 97: ...set pressure Charging circuit pressure 0 4 0 6 MPa 4 1 6 1 c at engine 2800 rpm Case internal pressure Less than 0 098 MPa 1 c Pump capacity variable displacement type 0 23 4 cc rev Motor capacity fi...

Страница 98: ...88 2 HST unit 362Y...

Страница 99: ...in 22 Spring holder 23 Spring 24 Spring holder 25 Snap ring 26 Ball bearing 27 Needle bearing 28 Valve 29 Spring 30 Oil seal 31 Oil seal 32 Gasket 33 Gasket 34 O ring 35 O ring 36 Snap ring 37 O ring...

Страница 100: ...ether with the bearing 3 Drive shaft for traveling Break and remove the oil seal and remove the snap ring 52 Drive out the shaft front wards together with the bearing 6205 and thrust washer and take o...

Страница 101: ...ring 42 and bearing 6004 uu from bottom of clutch housing 6 Shifter rod Shifter fork 4WD Extract the shifter rod rear wards and remove the shifter fork NOTE When extracting the rod steel ball and spr...

Страница 102: ...for the following points 1 Because the oil seals of the drive shafts PTO Traveling 4WD break when disassembling the new oil seals are installed 2 Pack the drive shaft PTO for traveling and joint insi...

Страница 103: ...block 5 but may be installed to the port block side in some cases NOTE 1 Be careful not to drop the valve plate 9 2 Raising one side of the valve plate 9 will facilitate its removal Remove the cylind...

Страница 104: ...ve the cylinder block ass y from the shaft 8 Remove the thrust plate 12 from the case If it is difficult to remove pull it with an L shaped bar when removing NOTE Take care not lost the three pins 22...

Страница 105: ...ve the relief valve ass y 56 5 Charge pump Removal Remove the socket head bolts 52 4 pcs and take out the pump case 4 Remove the trochoid rotor 20 key 21 O ring 36 2 pcs and plate 18 from the shaft 7...

Страница 106: ...the swash plate 6 lightly to provide gap between the cover 16 and case 1 Insert drivers 2 pcs into the gap remove the cover 16 from the case 1 tap the swash plate to separate the cover on the opposite...

Страница 107: ...nce between the piston and cylinder block exceeds the service limit Standard assembling value Service limit 0 02 mm More than 0 04 mm Shoe thickness Standard assembling value Service limit 3 0 mm Less...

Страница 108: ...Tightening torque N m kgf m 1 2 3 4 5 6 7 8 9 Holder Charge pump case Pump case Motor case Motor case cover Pressure detection plug High pressure relief valve Neutral valve Cover 58 8 6 0 17 7 1 8 39...

Страница 109: ...port block 5 Charge pump case assembly Install the oil seal to 21mm in depth from charge pump case surface Install the holder 17 on the charge pump case and tighten to 58 8 N m 6 kgf m 6 Cover assemb...

Страница 110: ...he port block coat the installing surface gray color surface with lithium grease Install the spring holder 23 spring 24 and spring holder 25 with secure snap ring 26 NOTE Take care the spring holder 2...

Страница 111: ...secure with snap ring 55 4 Install pins 47 O ring 36 and plate 18 on the case 1 5 Install the key 21 and trochoid rotor assembly 20 on the pump shaft 7 NOTE The scribed mark on the trochoid rotor ass...

Страница 112: ...mbly and cover assembly 19 on the case 2 and tighten the socket head bolts 49 to 4 4 5 4 N m 0 45 0 55 kgf m 9 Install the thrust plate 12 and cylinder block assembly in the case 2 NOTE Check the pins...

Страница 113: ...tall the pins 46 on the case 2 Apply the grease thinly on the gasket 34 and put it on the case 2 Apply the grease thinly on the spring 30 end and put it in the case 2 Apply the grease thinly on the lo...

Страница 114: ...e clutch and start the engine Set throttle speed to 2800 rpm Be sure the HST foot pedal is in neutral position and then release the clutch Slowly move the foot pedal in the forward position to obtain...

Страница 115: ...ure gauge is too large range stop the engine and replace to small range oil pressure gauge Start the engine and set throttle speed to 2800rpm Set pressure 0 4 0 6 MPa 4 1 6 1 kgf c NOTE Never move the...

Страница 116: ...holder bottom surface A to center of rod end B is a starting point NOTE Additional adjustment may be needed after installed to tractor Adjustment 1 Inspect the clearance C between snap ring 5 and wash...

Страница 117: ...p and tighten the lock nut Figure 398Y NOTE Turning the rod B clockwise will cause wheels to rotate in reverse and turning counter clockwise the wheels will rotate in the forward direction 5 Stop the...

Страница 118: ...located on the right fender near the HPL control lever The switch has three positions which are SET position ON position and OFF position CRUISE LATCH RELAY 385230300 The cruise latch relay is located...

Страница 119: ...ter SET position CANCELS HST CRUISE CONTROL Drive the tractor and depress the HST pedal to suitable position and then push the HST cruise control switch to SET position and ON position Tractor is driv...

Страница 120: ...meter should indicate a resistance of 11 12 ohms If the resistance of the magnet is not as specified the magnet is defective and needs replaced 3 Use jumper wires to connect a 12 volt power supply to...

Страница 121: ...switch is defective and needs replaced 5 Touch one ohmmeter test probe to terminal 2 and the other probe to terminal 3 6 The ohmmeter should show little or no resistance indicating continuity 7 If the...

Страница 122: ...g an ohmmeter connect test probes to terminals C and D on the relay Observe the ohmmeter reading 2 There should be high resistance between terminals C and D indicting no continuity and that the relay...

Страница 123: ...ioning properly If there is continuity between the terminals the relay is defective and needs replaced DIODE 1 Using an ohmmeter connect positive test probe to terminal B and connect the other test pr...

Страница 124: ...urn spring Disassemble link system and reassemble 2 Defective thrust plate of pump side Replace part 3 Too low speed of HST output shaft 1 Leak of high pressure oil due to worn out sliding part of HST...

Страница 125: ...HST cruise control system troubleshooting Condition Possible cause Remedy Does not work HST cruise control 1 Defective the cruise control switch Replace the switch 2 Defective cruise control magnet R...

Страница 126: ...116 1 SECTIONAL VIEW 1 One Speed PTO Model 400Y 9 3 Single clutch 1 speed PTO 401Y HST with Mid PTO and 1 speed PTO 3 5 Transmission 2 Rear Transmission...

Страница 127: ...117 2 Two Speed PTO Model 403Y 9 3 Transmission Without one way clutch 2 Speed PTO...

Страница 128: ...gear 3 when separating the transmission 1 and transmission 2 2 Turn the flat face of the PTO countershaft 4 toward the range counter gear 5 on the drive pinion shaft 6 to avoid the interferences when...

Страница 129: ...ft 2 Main shaft Range gear Remove the snap ring 40 at the rear side of the fixed gear range M 7 and move the gear rearwards Driving out the main shaft 3 front wards remove the fixed gears range H 5 ra...

Страница 130: ...od 3 and change lever 12 Extract the shifter rod 3 front wards NOTE Steel balls 6 come out from housing when remove the shifter rod 3 Take care not to miss it The steel balls 6 and 13 are different si...

Страница 131: ...ting the drive pinion 14 rear wards remove the fixed gear 4WD 3 snap rings 28 4 slide gear 5 thrust washer 6 joint 9 counter gear 7 lock nut 10 and taper roller bearing 11 Take out the rear bearing an...

Страница 132: ...2 and 11 needle bearings 3 4 9 and 10 counter gears 5 and 8 synchronize hub 6 sleeve 7 and bearing 1 from in the housing 412Y 413Y 414Y 415Y 1 Bearing 2 Coupling 3 Needle bearing 4 Needle bearing 5 C...

Страница 133: ...PTO Model Remove the bearing 6205 NR 3 Tap the PTO counter shaft to rear ward and remove the seal cover 7 bearing 6 PTO counter shaft 5 to rear ward Take out the fixed gear 4 and bearing 8 from the ho...

Страница 134: ...n 7 from the change lever 6 and remove the change lever 6 Remove the bolt 8 and plate 9 Remove the shift arm 10 inward from housing Remove the shifter rod 12 from housing 10 Bracket Filter Remove the...

Страница 135: ...move the fixed gears range H L M and collars 2 pcs 5 Remove the bearing 8 from the housing 3 Differential support Differential ass y Remove the right and left differential supports NOTE 1 Though the r...

Страница 136: ...smission Pilling out the lock nut 5 taper reller bearings 4 and shims 3 6 PTO counter shaft Remove the snap ring 25 1 from the shaft 7 and remove the collar 2 thrust washers 3 counter gear 5 4WD needl...

Страница 137: ...her 15 and take out the baulk pin Drive out the spring pin and remove the and shifter fork 13 Extract the shifter rod 12 front wards 9 PTO counter shaft Drive out the shaft 3 together with the seal co...

Страница 138: ...e bearing 2 from the housing 11 Shift arm Drive out the spring pin 2 and remove the change lever 1 Remove the plate 4 and remove the shift arm 6 from the inside of the case 12 Mid PTO gear case Remove...

Страница 139: ...the case and remove the snap ring 52 12 Drive out the shaft 11 rearwards together with the bearing 9 and take out the slide gear 10 Takeout the bearing 9 and oil seal 8 from the case if necessary 436...

Страница 140: ...shafts 14 and 15 and joint 16 in the differential cage 8 437Y 1 Differential support 2 Bolt 3 4 Shim 0 1 t 0 3 t 0 5 t 5 6 Bearing 6010 7 Pin 8 Differential cage 9 Thrust washer 10 Differential gear 1...

Страница 141: ...hifter fork and slide gear if the service limit is exceeded Clearance between shifter fork and slide gear mm Assembling standard value Service limit 0 1 0 3 1 0 4 Differential 1 Check each gear and re...

Страница 142: ...e front wheel differential The lock washer parts No is 399310330 5 Drive pinion ass y drive pinion and ring gear 1 When replacing with new one adjust in the following procedure Increase or decrease th...

Страница 143: ...unterclockwise as viewed from the rear the assembly is correct If the rear PTO countershaft 1 is unable to rotate counterclockwise as viewed from the rear when hold the PTO counter shaft 2 the assembl...

Страница 144: ...ear 7 fixed gear 8 and install the drive pinion 4 from rear of housing 437 6CY 1 Rear taper roller bearing 2 Shims 3 Front taper roller bearing 4 Drive pinion shaft 5 Locknut 6 Snap ring 7 HST Range s...

Страница 145: ...ll 8 73 2 is installed at the detent ball 5 Rear PTO shaft endplay Inspect the rear PTO shaft endplay with a dial gauge after installed PTO seal cover 1 PTO shaft endplay is less than 0 3 mm If the en...

Страница 146: ...drive pinion and ring gear mm Assembling standard value 0 08 0 13 Repair value 0 3 NOTE 1 Replace the drive pinion and ring gear as an ass y 2 Refer to the paragraph of inspection of tooth contact for...

Страница 147: ...tooth contact from the red lead condition attached to the ring gear teeth a Heel contact Select shims so that the drive pinion is brought near the ring gear 437 9Y c Face contact Select shims so that...

Страница 148: ...from the shift arm NOTE When removing the snap ring do not expand it to more than 24 in bore since the tightening force decreases 438Y b Remove the snap ring washer and spring from the shift arm c Rem...

Страница 149: ...19 0 24 mm 0 5 mm 3 Reassembling Reassemble units in the reverse order to disassembly taking care to the following points 1 When connecting the shift arm and link ass y the pin should be at the right...

Страница 150: ...rn the shaft 1 2 4WD change lever Remove the split pin 19 and remove the 4WD change lever 14 from the shift arm 442Y 1 Shaft shift guide 2 Snap ring 3 Bushing 4 Change lever range shift 5 Change lever...

Страница 151: ...iding mechanical style Lining Cellulose fiber Type Wet multiple plate type complete water proof Brake Adjustment By expansion or contraction of break rod Operation 2 rear wheel braking independent rig...

Страница 152: ...han 50 mm in the pin mounting hole disassemble and check When tractor is new About 20 mm 1 Disassembly 1 Brake cover Stator Disk Lining Remove the brake cover fixing bolt Bolt tightening torque 44 1 5...

Страница 153: ...or the difference of level height is more than 0 1 mm Level height difference of contact surface Service limit 0 1 mm Check the brake cover steel ball brake cam and spring and replace defective ones 3...

Страница 154: ...emove the wheel shaft case cover and extract the bearing f Remove the oil seal from the wheel shaft case cover if necessary g Remove the bearing 62 32 12 from the housing 2 Inspection and reassembly 1...

Страница 155: ...it seats in well 450Y 5 REAR WHEEL 1 Specifications Tire size 9 5x24 4PR AG 11 2x24 4PR AG 13 6 16 4PR Turf Rim size W7 x 24 W10 24 Wl1 16 Tire type Nylon bias structure tube used 2 Check of tire Tir...

Страница 156: ...urf 25 8 50 14 1150 mm Not Adjustable IMPORTANT Never attempt to widen the tread setting by reversing front wheels on a four wheel drive system Rear Wheel Settings Rear Tire Type Tread Setting Note Ag...

Страница 157: ...lever 3 U nut 4 Bracket L H 5 Flat head pin 6 Washer 7 Bracket R H 8 Wire assembly L H 9 Wire assembly R H 10 Holder wire 11 Brake assembly L H 12 Brake assembly R H 13 Washer 14 Hand brake warning sw...

Страница 158: ...sconnect the connector from brake switch f Remove the hand brake assembly from the tractor g If necessary untighten the U nut and remove the wire assembly from hand brake 453Y Inspection Check the inn...

Страница 159: ...jected about 10mm from the U nut top face c Repeats depress the brake pedals several times d Repeats pull up and pull down hand brake lever several time e Adjust the wire assembles by nuts and at the...

Страница 160: ...ke ass y on the right and left sides 1 Adjust the play of the right and left pedals 2 Adjust the brake ass y 3 Install the brake ass y properly on the right and left sides 3 Brake working unevenly 1 I...

Страница 161: ...from shaft side 2 Steering control valve 334011330 Type Full hydraulic type non load reaction type 3 Steering cylinder 344952570 Stroke mm 185 Bore 35 4 Relief valve Adjusted flow rate L min 8 Adjuste...

Страница 162: ...eft Observe the gauge and the following Test Results If the pressure gauge reading rises before the steering wheel is turned it indicates that the steering motor will defective If the pressure gauge r...

Страница 163: ...piping 2 Right and left oil hoses are different in length L 500mm R 400mm Tighten the adaptor 5 in the figure below with specified torque PF3 8 tightening torque N m kgf m 44 1 53 9 4 5 5 5 Tighten t...

Страница 164: ...me not to allow the relief valve to work It is recommendable to lift the front wheels Tighten the oil pipe to the bottom of the pump with following torque Oil pipe tightening torque N m kgf m 29 4 39...

Страница 165: ...eering wheel turns freely 1 Steering control unit 1 Seizure of spool or sleeve due to dust entry Replace Cylinder dose not follow up sufficiently or at all the rotations of the steering wheel 1 Steeri...

Страница 166: ...Type Single acting Bore 70 Max lift 1520 kg Rear hole at the lowerink end Hydraulic oil SAE 80 gear oil manual transmission ISO VG 46 gear oil HST 2 HYDRAULIC CIRCUIT 464Y 1 Lift arm 2 Control valve...

Страница 167: ...nd control valve together Position control type 2 Cylinder head Piston Cylinder Remove the cylinder head Remove the cylinder liner and piston together to the cylinder head side NOTE Install or remove...

Страница 168: ...if worn out or damaged Clearance between hydraulic cylinder and piston Standard assembling value mm 0 03 0 15 Service limit mm 0 5 2 O ring Check each O ring and replace worn out or damaged ones if a...

Страница 169: ...justment fix with the split pin 5 Cylinder head lf oil in the hydraulic cylinder leaks check the steel ball guide for wear and replace if defective NOTE Replace the control valve ass y safety valve as...

Страница 170: ...m at the angles of elevation and depression as shown in the right figure 3 Coat an O ring with sufficient oil and install Do not use grease 4 Install a packing care to the installing order 5 Coat the...

Страница 171: ...F VALVE No 340016660 1 Name of components 479Y 1 Body 2 Spool 3 Spring pin 4 Spring pin 2 pcs 5 Snap ring 6 O ring 3 pcs 7 Taper threaded plug 3 pcs 3 8 18 NPTF 8 Relief housing kit 9 Poppet 10 Spring...

Страница 172: ...ect hydraulic piping for an external implement to the ports Cl and C2 and the port T2 depending on the implement and set the valve at the S position Oil entering P1 passes through the port C1 returns...

Страница 173: ...lve can be removed and remove the O ring c Extract the spool forwards of the valve and remove 2 O rings NOTE If extracting in either one direction the O ring is broken For reassembly install 2 O rings...

Страница 174: ...pressure gauge Complete in a short time Relief set pressure 14 7 15 2 MPa 150 155 kgf c Adjust the set pressure by increase or decrease the number of shims as shown in the right figure The pressure va...

Страница 175: ...e provided as a piece of part please refer to the PARTS LIST 1 Split pin 2 Washer 3 Pin 4 Bolt 5 Cap 6 Spring 7 Spool 8 Valve seat 9 O ring 10 O ring 11 O ring 12 Lowering valve 13 Spring 14 O ring 15...

Страница 176: ...turns to sump Oil trapped in the lift cylinder under pressure caused by the weight of the implement on the lift arms exerts pressure on the cylinder side of the check valve 7 holding it in a closed po...

Страница 177: ...e check valve spring and lift cylinder oil static pressure on the check valve raising the check valve off its seat and allowing oil to flow to the lift cylinder to raise the implement When the oil pre...

Страница 178: ...l from the pump flows through the passage and opens the shut off valve and return to sump as in the neutral position The oil in the lift cylinder 8 flows through passage past the check valve 7 to the...

Страница 179: ...oved to the raising position and the much oil f1ows from the oil pump the cylinder passage pressure A lower than the oil pump passage pressure B and the bypass spool is moved to the L H side then the...

Страница 180: ...Don t remove the plate 11 nut 10 and screw 9 from the spool 8 2 Lowering valve Remove the valve seat 3 by special tool Remove the lowering valve spool 1 and spring 2 from the valve body 3 Check valve...

Страница 181: ...area for uneven wear or other damage Replace the valve and valve seat as a set if required Inspect all O ring grooves for nicks or burrs 5 Reassembly Reassemble the control valve in the reverse order...

Страница 182: ...ngine at 1000 1500 rpm and inspect the play of the lever insensible area that the position control lever is at the position as shown below on the lever guide Play of control lever Continuous lifting A...

Страница 183: ...or the control lever s is 19 6 29 4 N 2 3 kgf at the lowering direction 501Y 7 Special tool Please make this special tool for removal and reassemble the lowering valve seat 3 Figure 494Y 502Y Please m...

Страница 184: ...by the spring at the back of the pilot spool the pilot spool is gradually returned to the neutral position Pump oil pressured flow is redirected to sump and lift arms stop rising NOTE The rod feedbac...

Страница 185: ...to counterclock wise the pilot spool is changed over to the lowering position by the force of the spring at the back and the implement lowers In this way lifting and lowering are repeated according t...

Страница 186: ...A the plowing depth is kept constant However in hard ground the draft control attempts the depth of A to keep the traction resistance constant However though the lift arm raises to the position B by...

Страница 187: ...nd set the draft control lever at forward position Start the engine and set at 1000 1500 rpm Move the feedback link in the arrow mark direction front of tractor and adjust the rod to the bracket mount...

Страница 188: ...70 510Y 1 Valve body 2 Spool 3 Spring seat 4 Spring 5 Bolt 6 O ring 7 Seal plate 8 Cap 9 Bolt 10 Bracket 11 Seal plate 12 O ring 13 Wiper ring 14 Steel ball 15 Steel ball 16 Sleeve 17 Spacer 18 Snap r...

Страница 189: ...valve 340015230 511Y 1 Valve body 2 Spool 3 Spring seat 4 Spring 5 Bolt 6 O ring 7 Seal plate 8 Cap 9 Bolt 10 Bracket 11 Bolt 12 O ring 13 Wiper ring NOTE This valve is located on the HST model tracto...

Страница 190: ...ntrol valve 340015250 512Y 1 Valve body 2 Spool 3 Spring seat 4 Spring 5 Bolt 6 O ring 7 Seal plate 8 Cap 9 Bolt 10 Bracket 11 Bolt 12 O ring 13 Wiper ring 14 Shut off valve NOTE This valve is located...

Страница 191: ...move the O ring and wiper ring of the valve body Only when replacing 5 Inspection 1 Spool If the sliding surface or seat surface have worn out or damaged replace the valve ass y 2 O ring and wiper rin...

Страница 192: ...y 4 Clogged oil filter 5 Hydraulic oil 1 Correct or replace 2 Inspect or replace the O ring liner and piston 3 Replace the pump in case of oil leak 4 Replace the filter check oil for contamination 5 U...

Страница 193: ...y in the lowering direction due to vibration while traveling 1 1 Adjust the washer friction spring with the castle nut not to allow the control lever to move It should be operated by the force of 19 6...

Страница 194: ...ever is ON position B is located on the PTO control shifter system and prevents the tractor from starting if the PTO is engaged C is located on the Mid PTO change lever linkage and prevents the tracto...

Страница 195: ...r Located adjacent to the alternator attached on the wire harness 14 Coolant Temperature Sending Unit Located on the front left side of the engine cylinder head in the thermostat housing the coolant t...

Страница 196: ...mps 25 Brake Lamp Switches Located under the right footstep the brake lamp switches close and the brake lamps illuminate with brake relay when depress the brake pedals 26 Brake Switch Relay Located on...

Страница 197: ...186 2 COMPONENT LOCATION 517Y...

Страница 198: ...harging the battery Do not use an exposed flame and do not smoke when checking the battery electrolyte level 2 FUSIBLE LINK A fusible link wire is used to protect the entire tractor s electrical syste...

Страница 199: ...engaged position the contacts in the switch is open not allowing tractor to start B The PTO rear safety start switch is a single pole push button type switch located on the left side rear transmission...

Страница 200: ...cation Relay is used to automatically complete close a circuit A relay contains two parts of a circuit One part the control circuit uses current to energize a coil The other part the function circuit...

Страница 201: ...there is continuity the relay is defective and needs replaced 5 To test the relay when energized use jumper wires to connect a 12 volt power supply to terminals A and B brass terminals on the relay 6...

Страница 202: ...eter with diode testing capabilities is unavailable use an ohmmeter to test as described below 4 Using an ohmmeter touch the red positive test probe to diode terminal A Touch the black negative ohmmet...

Страница 203: ...d testings are referred to brake switch diode 10 FUEL SHUTOFF SOLENOID Description and Location The fuel shutoff solenoid 1 is located on the right side of the engine threaded into the rear of the fue...

Страница 204: ...to the solenoid body be sure paint is the removed from the body Otherwise the power will not be transferred to the solenoid 2 Use jumper wires to connect the positive terminal of a 12 volt power suppl...

Страница 205: ...efully remove the sending unit 1 from the fuel tank 2 5 Remove and discard the sealing gasket from the sending unit Fuel Level Sending Unit Testing 1 Using an ohmmeter touch one test probe to terminal...

Страница 206: ...Plug Testing 1 Clean carbon from the sheath end of the glow plug NOTE Do not test resistance using the glow plug sheath 2 Using an ohmmeter touch one test probe to the glow plug electrode Touch the o...

Страница 207: ...engine Testing WARNING Do not perform sending unit test with tractor engine running contact with moving parts will cause bodily injury NOTE Engine paint must be removed from sending unit body or the o...

Страница 208: ...isconnect the negative battery cable from the battery 2 Disconnect and remove the relay to be tested from the tractor 3 Using an ohmmeter connect test probes to terminals C and D on the relay Observe...

Страница 209: ...hould be little or no resistance indicating continuity in the switch If there is no continuity the switch is defective and needs replaced CAUTION Do not use high pressure compressed air for the follow...

Страница 210: ...perature is indicated as the white region of the gauge The red portion of the gauge indicates an engine overheating condition This is to alert the operator to stop the tractor engine and investigate a...

Страница 211: ...go out after the tractor engine is started If the light remains on or illuminates while the tractor engine is running the light is warning of a charging system malfunction While the tractor may run f...

Страница 212: ...leaking out causing the gauges to give a false indication during operation Instrument Panel Light Replacement 1 From the back of the instrument panel rotate the bulb socket containing the faulty bulb...

Страница 213: ...panel needs replaced Temperature Gauge Testing 1 Disconnect the instrument panel connector from the main wiring harness 2 Using an ohmmeter touch one test probe to the terminal 1 of the temperature ga...

Страница 214: ...am Removal 1 Pull up the instrument panel 2 Remove the left dashboard 3 Disconnect the connector from the headlight switch 4 Unscrew the screw from the grip and remove them 5 Untighten the nut and rem...

Страница 215: ...ve the rubber 4 Turn the bulb support and pull out the bulb Inspection NOTE 1 Replace the headlight bulb with new bulb 2 Do not touch naked fingers to the bulb glass Inspect the bulb and filament for...

Страница 216: ...1 Disconnect the negative battery cable from the battery 2 Remove the bolt retaining the light timer to the tractor and disconnect the timer from the main wiring harness NOTE The terminals are not num...

Страница 217: ...magnet When the cruise control switch is released from the ON position the switch rockers to the ON position which keeps the cruise control activated until the switch is pushed to the OFF position or...

Страница 218: ...ting continuity If there is no continuity the switch is defective and needs replaced 5 Continue to hold ohmmeter test probes to terminal 2 and 3 of the switch and let the switch rocker from the SET po...

Страница 219: ...rom the cruise control magnet 4 Remove the two bolts 2 which secures the cruise control magnet mounting bracket 3 to the steering column Remove the magnet from the tractor Cruise Control Magnet Testin...

Страница 220: ...the parking brake using the continuity test to check the switch for proper operation 1 Disconnect the negative battery cable from the battery Parking Brake Light Switch Trouble shooting Continuity Tes...

Страница 221: ...Left turn When the flasher light switch is in the Right or Left turn position the flasher lights on the fender and instrument panel will operate Horn Switch Description The horn switch is pushed ON t...

Страница 222: ...B and R If test results are not as outlined above replace the combination switch 25 BRAKE LAMP SWITCH Description and Location The master brake switch 1 is a single pole pullout plunger type switch T...

Страница 223: ...lize an internal diode The master brake switch when closed will energize the brake light relay coil which completes brake lamp circuit This allows the brake lamps illuminate When the coil is not energ...

Страница 224: ...upply to terminals A and B brass terminals on the relay Touch ohmmeter test probes to the E and D terminals on the relay and observe the ohmmeter Little or no resistance between the terminals indicate...

Страница 225: ...ition and current flows to HST cruise magnet 28 HAZARD LAMP RELAY Description Hazard lamp relay is installed in the dashboard The hazard lamp relay is same part and interchangeable with safety start r...

Страница 226: ...ng 1 Install the battery s positive lead to terminal 49 of the relay 2 Install four 21W of the light s positive leads to terminal 49a of the relay 3 Install 3 4W of the light s positive lead to termin...

Страница 227: ...ard seven pin socket 32 FUSE BLOCK FOR HEADLAMP The fuse blocks for headlamps are located near the headlamp in the engine cover The fuse blocks hold fuses that protect individual headlamps circuit Hea...

Страница 228: ...se of IC the voltage regulator is very compact and is built into the alternator B The field current flows directly from the diode trio to the field coil with out passing through the external circuit B...

Страница 229: ...nfirm that the reading on the voltmeter indicates the battery voltage If the voltmeter reading is zero the wiring between the terminal B and the battery is faulty c With the test ammeter terminals sho...

Страница 230: ...s more than 70 of the nominal output refer to Section on Service Specifications the alternator can be considered as working almost at is factory NOTE To make the above judgment more accurate remove th...

Страница 231: ...ion of slip ring surface Correct stain or scratches on the slip ring surface with a sand paper of about 400 600 A badly roughened slip ring or a slip ring worn down beyond the service limit should be...

Страница 232: ...the rotor assembly B Stator a Check for continuity between the leads of the stator coil Figure 604Y If there is no continuity the stator coil is defective Replace the stator assembly b Check for conti...

Страница 233: ...ative Heat sink Check for continuity between the negative heat sink and stator coil lead connection terminal with a circuit tester If there is continuity in both directions the diode is short circuite...

Страница 234: ...ng A Installing rotor Push brushes into brush holder and insert a wire to hold them in raised position before install the rectifier and regulator assembly Install rotor and remove wire 609Y 610Y NOTE...

Страница 235: ...t must be within the limits shown in the section on Service Specifications If the output is less than specified value the alternator should be disassembled and checked 611Y 9 Precautions a Reversed ba...

Страница 236: ...r rpm 2500 Brush length Original mm 18 5 0 728 Limit mm 5 0 0 2 Brush spring tension Original g 470 590 1 036 1 300 lb Limit g 270 0 60 lb Bearing Rear side ECSC8 Front side 6303DDG Slip ring diameter...

Страница 237: ...rect Regulator Defective regulator Replace Battery Defective battery Replace Over charge Battery Internal short circuit Replace Regulator Defective regulator Replace Unstable charging current Wiring D...

Страница 238: ...e shaft gear The structure is different from that of direct drive type but the electrical wiring is the same between two types The magnetic field is produced by six permanent magnets The magnets are m...

Страница 239: ...terminal nut l and disconnect connecting wire 2 Remove screws 3 securing switch and remove switch and plunger 4 2 Remove brush holder securing screws 5 and through bolts 6 Remove rear bracket 7 but d...

Страница 240: ...remove the stop ring and expose snap ring 22 Remove the pipe from the shaft 615Y c Remove the snap ring and the stop ring and separate the over running clutch 18 from the gear shaft 17 If the snap rin...

Страница 241: ...e cleaned with grease dissolving solvents since these would dissolve the lubricant in the clutch mechanism 5 Front bracket Replace front bracket as an assembly including ball bearing if the bearing fa...

Страница 242: ...vement as shown in Figure 621Y If the amount does not fall within limit adjust it by adding or removing shims which are located between switch and front bracket Adding shims decreases the amount of th...

Страница 243: ...htened battery and switch terminals or improper contact of the inserting part Correct and retighten Key switch Improper contact preventing flow of current Correct or replace the contact part Starting...

Страница 244: ...efective armature or field coil Insufficient tightening of connections of the field coil and brush Replace Install properly Replace Correct Correct or replace Retighten Magnet switch Broken holding co...

Страница 245: ...233 4 WIRING 518aY...

Страница 246: ...234 518bY...

Страница 247: ...nal standard category Any implements with mounting part in conformity with this standard may be mounted 624Y 3 11 Cultivating Implement Installing Device Type A B C Max D Min E Max F Min G H J K Min N...

Страница 248: ...ure to leave the pins of the three point link on the side of the tractor when disconnecting the implement since they are apt to be lost 2 PTO Power take out shaft Specifications Model ST330 333 Rotati...

Страница 249: ...shaft clearance 0 02 0 1 0 5 Differential pinion thrust washer thickness 1 2 1 1 1 2 0 9 Differential gear thrust washer thickness 1 2 1 1 1 2 0 9 Differential gear differential pinion backlash 0 2 0...

Страница 250: ...g wound on spline Transmission case differential bush clearance Front 0 02 0 15 0 35 Rear 0 02 0 15 0 35 King pin inclination angle 10 Fixed Toe in 5 5 10 10 Caster 0 Fixed Camber 2 Fixed Final gear b...

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