Komatsu Wheel Loader Log WA450-3LL Shop Manual SEBM009904 – PDF DOWNLOAD

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Komatsu Wheel Loader Log WA450-3LL Shop Manual SEBM009904 – PDF DOWNLOAD

FILE DETAILS:

Komatsu Wheel Loader Log WA450-3LL Shop Manual SEBM009904 – PDF DOWNLOAD

Language : English
Pages :789
Downloadable : Yes
File Type : PDF

DESCRIPTION:

Komatsu Wheel Loader Log WA450-3LL Shop Manual SEBM009904 – PDF DOWNLOAD

MACHINE MODEL SERIAL NUMBER
WA450-3LL 50305 and up

FOREWORD
GENERAL
This shop manual has been prepared as an aid to improve the quality of repairs by giving the serviceman an
accurate understanding of the product and by showing him the correct way to perform repairs and make judgements.
Make sure you understand the contents of this manual and use it to full effect at every opportunity.
This shop manual mainly contains the necessary technical information for operations performed in a service
workshop. For ease of understanding, the manual is divided into the following chapters; these chapters are further
divided into the each main group of components.
STRUCTURE AND FUNCTION
This section explains the structure and function of each component. It serves not only to give an understanding
of the structure, but also serves as reference material for troubleshooting.
In addition, this section may contain hydraulic circuit diagrams, electric circuit diagrams, and maintenance
standards.
TESTING AND ADJUSTING
This section explains checks to be made before and after performing repairs, as well as adjustments to
be made at completion of the checks and repairs.
Troubleshooting charts correlating “Problems” with “Causes” are also included in this section.
DISASSEMBLY AND ASSEMBLY
This section explains the procedures for removing, installing, disassembling and assembling each component,
as well as precautions for them.
MAINTENANCE STANDARD
This section gives the judgment standards for inspection of disassembled parts.
The contents of this section may be described in STRUCTURE AND FUNCTION.
OTHERS
This section mainly gives hydraulic circuit diagrams and electric circuit diagrams.
In addition, this section may give the specifications of attachments and options together.

TABLE OF CONTENTS:

Komatsu Wheel Loader Log WA450-3LL Shop Manual SEBM009904 – PDF DOWNLOAD

MACHINE MODEL SERIAL NUMBER
WA450-3LL 50305 and up

COVER 1
CONTENTS 2
01 GENERAL 28
GENERAL ASSEMBLY DRAWING 29
SPECIFICATIONS 31
WEIGHT TABLE 34
LIST OF LUBRICANT AND WATER 36
10 STRUCTURE AND FUNCTION 38
POWER TRAIN 39
POWER TRAIN SYSTEM 40
TORQUE CONVERTER, TRANSMISSION PIPING 42
TRANSMISSION HYDRAULIC SYSTEM DIAGRAM 43
TRANSMISSION HYDRAULIC CIRCUIT DIAGRAM 44
TORQUE CONVERTER 45
TORQUE CONVERTER OIL FILTER 48
TRANSMISSION 49
TRANSMISSION CONTROL VALVE 59
TRANSMISSION SOLENOID VALVE 81
PILOT OIL FILTER 82
DRIVE SHAFT 83
AXLE 84
DIFFERENTIAL 86
FINAL DRIVE 90
AXLE MOUNT,CENTER HINGE PIN 91
STEERING PIPING 93
STEERING COLUMN 94
STEERING VALVE 95
ORBIT-ROLL VALVE109
STOP VALVE113
EMERGENCY STEERING PUMP (OPTION)114
DIVERTER VALVE (OPTION)115
BRAKE PIPING118
BRAKE CIRCUIT DIAGRAM119
BRAKE VALVE121
CHARGE VALVE126
ACCUMULATOR (FOR BRAKE)130
SLACK ADJUSTER131
BRAKE COOLING PIPING134
BRAKE COOLING CIRCUIT DIAGRAM135
BRAKE136
BRAKE COOLING138
PARKING BRAKE CONTROL139
PARKING BRAKE140
PARKING BRAKE SOLENOID VALVE141
PARKING BRAKE VALVE142
PARKING BRAKE EMERGENCY RELEASE SOLENOID VALVE143
HYDRAULIC PIPING144
WORK EQUIPMENT HYDRAULIC SYSTEM DIAGRAM145
WORK EQUIPMENT HYDRAULIC CIRCUIT DIAGRAM147
WORK EQUIPMENT LEVER LINKAGE148
HYDRAULIC TANK149
PPC VALVE151
PPC RELIEF VALVE156
ACCUMULATOR (FOR PPC VALVE)157
CUT-OFF VALVE158
MAIN CONTROL VALVE161
WORK EQUIPMENT LINKAGE175
LOG GRAPPLE177
FORK POSITIONER AND LIFT ARM KICK-OUT178
CAB (OPTION)184
AIR CONDITIONER (OPTION)185
ELECTRIC CIRCUIT DIAGRAM186
MACHINE MONITOR SYSTEM188
MAIN MONITOR189
MAINTENANCE MONITOR194
ECSS196
SENSORS200
ENGINE STARTING CIRCUIT205
ENGINE STOP CIRCUIT206
PREHEATING CIRCUIT207
ELECTRIC TRANSMISSION CONTROL208
KICK-DOWN SWICTH211
KICK-DOWN ELECTRIC CIRCUIT DIAGRAM212
TRANSMISSION CUT-OFF SWITCH217
TRANSMISSION CUT-OFF FUNCTION218
ELECTRIC PARKING BRAKE CONTROL220
20 TESTING AND ADJUSTING232
STANDARD VALUE TABLE FOR ENGINE233
STANDARD VALUE TABLE FOR CHASSIS234
STANDARD VALUE TABLE FOR ELECTRICAL PARTS237
TOOLS FOR TESTING,ADJUSTING,AND TROUBLESHOOTING240
MEASURING ENGINE SPEED241
MEASURING INTAKE AIR PRESSURE (BOOST PRESSURE)242
ADJUSTING VALVE CLEARANCE243
MEASURING EXHAUST COLOR244
MEASURING EXHAUST GAS TEMPERATURE245
MEASURING BLOW-BY PRESSURE246
MEASURING COMPRESSION PRESSURE247
MEASURING ENGINE OIL PRESSURE248
TESTING AND ADJUSTING FUEL INJECTION TIMING249
METHOD FOR ADJUSTING ENGINE STOP MOTOR CABLE251
TESTING AND ADJUSTING FAN BELT TENSION253
MEASURING ACCELERATOR PEDAL254
MEASURING OPERATING FORCE, TRAVEL OF SPEED LEVER256
MEASURING STALL SPEED257
MEASURING TORQUE CONVERTER,TRANSMISSION,PARKING BRAKE OIL PRESSURE259
METHOD OF OPERATING EMERGENCY MANUAL SPOOL261
MEASURING CLEARANCE BETWEEN TIRE AND WHEEL263
TESTING AND ADJUSTING STEERING WHEEL264
TESTING AND ADJUSTING STEERING CONTROL267
MEASURING STEERING OIL PRESSURE268
MEASURING OPERATING FORCE,TRAVEL OF BRAKE PEDAL270
MEASURING BRAKE PERFORMANCE271
TESTING BRAKE OIL PRESSRUE272
MEASURING BRAKE DISC WEAR273
BLEEDING AIR FROM BRAKE SYSTEM274
BLEEDING AIR FROM BRAKE COOLING OIL LINE275
MEASURING PARKING BRAKE PERFORMANCE276
MANUAL RELEASE METHOD FOR PARKING BRAKE277
TESTING WEAR OF PARKING BRAKE DISC278
MEASURING WORK EQUIPMENT CONTROL LEVER279
MEASURING WORK EQUIPMENT HYDRAULIC PRESSURE281
MEASURING WORK EQUIPMENT285
TESTING AND ADJUSTING FORK PISITIONER287
TESTING AND ADJUSTING LIFT ARM KICK-OUT288
ADJUSTING MAIN MONITOR (SPEEDOMETER MODULE)290
CHECKING FOR ABNORMALITY IN FUEL LEVEL SENSOR291
TROUBLESHOOTING292
POINTS TO REMEMBER WHEN TROUBLESHOOTING293
SEQUENCE OF EVENTS IN TROUBLESHOOTING294
PRECAUTIONS WHEN CARRYING OUT MAINTENANCE295
HANDLING CONNECTORS302
CHECKS BEFORE TROUBLESHOOTING303
METHOD OF USING TROUBLESHOOTING CHARTS304
CONNECTOR TYPES AND MOUNTING LOCATIONS312
CONNECTION TABLE FOR CONNECTOR PIN NUMBERS318
TROUBLESHOOTING OF ENGINE SYSTEM (S MODE)325
S-1 STARTING PERFORMANCE IS POOR (STARTING ALWAYS TAKES TIME)326
S-2 ENGINE DOES NOT START327
(1) ENGINE DOES NOT TURN327
(2) ENGINE TURNS BUT TO EXHAUST GAS COMES OUT (FUEL IS NOT BEING INJECTED)328
(3) EXHAUST GAS COMES OUT BUT ENGINE DOES NOT START (FUEL IS BEING INJECTED)329
S-3 ENGINE DOES NOT PICK UP SMOOTHLY (FOLLOW-UP IS POOR)330
S-4 ENGINE STOPS DURING OPERATIONS331
S-5 ENGINE DOES NOT ROTATE SMOOTHLY (HUNTING)332
S-6 ENGINE LACKS OUTPUT (NO POWER)333
S-7 EXHAUST GAS IS BLACK (INCOMPLETE COMBUSTION)334
S-8 OIL CONSUMPTION IS EXCESSIVE (OR EXHAUST GAS IS BLUE)335
S-9 OIL BECOMES CONTAMINATED QUICKLY336
S-10 FUEL CONSUMPTION IS EXCESSIVE337
S-11 OIL IS IN COOLING WATER,OR WATER SPURTS BACK,OR WATER LEVEL GOES DOWN338
S-12 OIL PRESSURE LAMP LIGHTS UP (DROP IN OIL PRESSURE)339
S-13 OIL LEVEL RISES340
S-14 WATER TEMPERATURE BECOMES TOO HIGH (OVERHEATING)341
S-15 ABNORMAL NOISE IS MADE342
S-16 VIBRATION IS EXCESSIVE343
TROUBLESHOOTING OF MAIN MONITOR SYSTEM (M MODE)344
TROUBLE DATA DISPLAY (OPTION)346
M-1 MAIN MONITOR DOES NOT WORK347
M-2 WHEN STARTING SWITCH IS TURNED ON AND ENGINE IS STARTED IMMEDIATELY, ALL LAMPS STAY LIGHTED UP348
M-3 SPEEDOMETER DISPLAY DOES NOT WORK PROPERLY349
M-4 ABNORMALITY IN SHIFT INDICATOR350
(a) STAYS AT N EVEN WHEN DIRECTIONAL LEVER IS AT F350
(b) STAYS AT N EVEN WHEN DIRECTIONAL LEVER IS AT R350
(c) DOES NOT DISPLAY N EVEN WHEN DIRECTIONAL LEVER IS AT N AND DISPLAYS R WHEN DIRECTIONAL LEVER IS AT F350
(d) DOES NOT DISPLAY N EVEN WHEN DIRECTIONAL LEVER IS AT N AND DISPLAYS F WHEN DIRECTIONAL LEVER IS AT R351
(e) DOES NOT DISPLAY 1ST,4TH351
(f) DOES NOT DISPLAY 3RD,4TH352
(g) DOES NOT DISPLAY 2ND,3RD352
(h) DOES NOT DISPLAY 1ST,2ND353
M-5 HIGH BEAM DOES NOT LIGHT UP354
M-6 TURN SIGNAL DISPLAY DOES NOT LIGHT UP355
(a) LH TURN SIGNAL DOES NOT LIGHT UP355
(b) RH TURN SIGNAL DOES NOT LIGHT UP355
M-7 ABMORMALITY IN PARKING DISPLAY356
(a) PARKING LAMP DOES NOT LIGHT UP356
(b) PARKING LAMP STAYS LIGHTED UP356
M-8 ABNORMALITY IN PREHEATING SYSTEM (QGS)357
(a) DOES NOT CARRY OUT PREHEATING357
(b) ALWAYS CARRIES OUT PREHEATING FOR 1 MINUTE358
(c) PREHEATING STAYS ON358
(d) PREHEATING TIME BECOMES SHORTER,OR THERE IS VARIATION359
M-9 NIGHT LIGHTING DOES NOT LIGHT UP360
M-10 ABNORMALITY IN FRONT WORKING LAMP (OPTION)361
(a) NEITHER MONITOR DISPLAY NOT FRONT WORKING LAMP LIGHT UP361
(b) WORKING LAMP LIGHTS UP BUT MONITOR DISPLAY DOES NOT LIGHT UP361
(c) MONITOR LIGHTS UP BUT WORKING LAMP DOES NOT LIGHT UP361
M-11 ABNORMALITY IN REAR WORKING LAMP362
(a) NEITHER MONITOR DISPLAY NOT REAR WORKING LAMP LIGHT UP362
(b) WORKING LAMP LIGHTS UP BUT MONITOR DISPLAY DOES NOT LIGHT UP362
(c) MONITOR LIGHTS UP BUT WORKING LAMP DOES NOT LIGHT UP362
M-12 ABNORMALITY IN TRANSMISSION CUT-OFF364
(a) WHEN MONITOR SWITCH IS PRESSED,CUT-OFF FUNCTION IS NOT SWITCHED AND DISPLAY IS NOT GIVEN364
(b) MONITOR DISPLAY GOES OUT BUT CUT-OFF FUNCTION STAYS ON364
(c) MONITOR DISPLAY LIGHTS UP BUT CUT-OFF FUNCTION IS NOT ACTUATED365
M-13 ABNORMALITY IN PARKING BRAKE DRAGGING WARNING366
(a) WHEN PARKING BRAKE IS APPLIED,BUZZER SOUNDS (INTERMITTENTLY) EVEN WHEN DIRECTIONAL LEVER IS AT N,AND CAUTION LAMP FLASHES366
(b) WHEN PARKING BRAKE IS APPLIED,BUZZER DOES NOT SOUND AND CAUTION LAMP DOES NOT LIGHT UP EVEN WHEN DIRECTIONAL LEVER IS AT POSITION OTHER THAN N366
M-14 WHEN PARKING BRAKE DRAGGING WARNING IS GIVEN, BUZZER CAUTION LAMP ARE ACTUATED CONTINUOUSLY, OR THEY ARE NOT ACTUATED367
(a) ACTUATED CONTINUOUSLY367
(b) NOT ACTUATED367
M-15 ABNORMALITY IN BUZZER368
(a) BUZZER DOES NOT SOUND WHEN STARTING SWITCH IS TURNED ON(DURING SELF-CHECK)368
(b) BUZZER ALWAYS SOUNDS368
M-16 CONDITION OF MONITOR SWITCHES IS NOT STORED IN MEMORY369
M-17 ABNORMALITY IN FAILURE DISPLAY MODE370
(a) DOES NOT ENTER FAILURE DISPLAY MODE370
(b) TIME FOR TIME ELAPSED SINCE FAILURE ON FAILURE DISPLAY MODE DOES NOT ADVANCE370
M-18 ABNORMALITY IN EMERGENCY STEERING NORMAL DISPLAY (OPTION)371
(a) EMERGENCY STEERING NORMAL DISPLAY DOES NOT LIGHT UP371
(b) EMERGENCY STEERING NORMAL DISPLAY STAYS LIGHTED UP371
M-19 ABNORMALITY IN EMERGENCY STEERING ACTUATION DISPLAY (OPTION)372
(a) EMERGENCY STEERING ACTUATION DISPLAY DOES NOT LIGHT UP372
(b) EMERGENCY STEERING ACTUATION DISPLAY STAYS LIGHTED UP372
M-20 ABNORMALITY IN ECSS STSTEM (OPTION)373
(a) DISPLAY DOES NOT CHANGE WHEN SWITCH IS PRESSED373
(b) MONITOR DISPLAY LIGHTS UP BUT ECSS FUNCTION DOES NOT WORK373
M-21 FAILURE CODE IS NOT SENT TO MAIN MONITOR (ABNORMALITY IN NETWORK ) (OPTION)374
TROUBLESHOOTING OF MAINTENANCE MONITOR SYSTEM (K MODE)375
K-1 WHEN STARTING SWITCH IS TURNED ON, ALL LAMPS ON MAINTENANCE MONITOR DO NOT LIGHT UP FOR 3 SECONDS ,MAINTENANCE MONITOR DOES NOT WORK376
(a) ALL LAMPS ON MAINTENANCE MONITOR DO NOT LIGHT UP FOR 3 SECONDS376
(b) SOME LAMPS DO NOT LIGHT UP377
K-2 WHEN STARTING SWITCH IS TURNED ON ,ALL LAMPS ON MAINTENANCE MONITOR LIGHT UP BUT DO NOT GO OUT377
K-3 WHEN ENGINE IS STARTED IMMEDIATELY AFTER STARTING SWICTH IS TURNED ON (WITHIN 3 SECONDS), ALL LAMPS ON MAINTINANCE MONITOR DO NOT GO OUT378
K-4 WHEN STARTING SWITCH IS TURNED ON (ENGINE STOPPED), CHECK ITEMS FLASH379
(a) ENGINE OIL LEVEL DISPLAY FLASHES379
(b) ENGINE WATER LEVEL DISPLAY FLASHES380
K-5 WHEN STARTING SWITCH IS TURNED ON (ENGINE STARED), CAUTION ITIMS FLASH381
(a) ENGINE OIL PRESSURE DISPLAY FLASHES381
(b) BATTERY CHARGE LEVEL DISPLAY FLASHES382
(c) BRAKE OIL PRESSURE DISPLAY FLASHES383
(d) BRAKE OIL TEMPERATURE DISPLAY FLASHES384
(e) AIR CLEANER DISPLAY FLASHES385
K-6 CAUTION ITEMS ARE FLASHING BUT ALARM BUZZER DOES NOT SOUND386
K-7 THERE IS NO ABNORMALITY IN MONITOR DISPLAY BUT ALARM BUZZER SOUNDS387
K-8 CAUTION ITEMS ARE FLASHING BUT WARNING LAMP (CHECK LAMP, CAUTION LAMP) DOES NOT LIGHT UP388
(a) CHECK LAMP388
(b) CAUTION LAMP388
K-9 THERE IS NO ABNORMALITY IN MAINTENANCE MONITOR DISPLAY BUT WARNING LAMP (CHECK LAMP,CAUTION LAMP) LIGHTS UP389
(a) CHECK LAMP389
(b) CAUTION LAMP389
K-10 NIGHT LIGHTING DOES NOT LIGHT UP WHEN LAMP SWITCH IS TURNED ON (ONLY LIGHTING OF MAINTENANCE MONITOR DOES NOT LIGHT UP)390
K-11 NIGHT LIGHTING LIGHTS UP EVEN WHEN LAMP SWITCH IS OFF, NIGHT LIGHTING STAYS LIGHTED UP391
K-12 SERVICE METER DOES NOT WORK392
K-13 SERVICE METER IS RUNNING EVEN WHEN ENGINE IS STOPPED392
K-14 ABNORMALITY IN GAUGE ITEMS393
(a) ABNORMALITY IN FUEL GAUGE393
(b) ABNORMALITY IN ENGINE WATER TEMPERATURE GAUGE394
(c) ABNORMALITY IN TORQUE CONVERTER OIL TEMPERATURE GAUGE395
TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE)396
E-1 ENGINE DOES NOT START397
(a) STARTING MOTOR DOES NOT TURN397
(b) STARTING MOTOR TURNS401
E-2 ENGINE DOES NOT STOP403
E-3 ENGINE STOPS WHEN MACHINE IS TRAVELING403
E-4 PARKING BRAKE DOES NOT WORK404
(a) PARKING BRAKE HAS NO EFFECT WHEN PARKING BRAKE SWITCH IS TURNED ON (PARKING)404
(b) PARKING BRAKE HAS NO EFFECT WHEN BRAKE PRESSURE DROPS404
E-5 PARKING BRAKE IS APPLIED WHEN MACHINE IS TRAVELING405
E-6 PARKING BRAKE IS RELEASED WHEN STARTING SWITCH IS TURNED ON407
E-7 TRANSMISSION DOES NOT CHANGE TO NEUTRAL WHEN PARKING BRAKE IS APPLIED407
E-8 TRANSMISSION DOES NOT WORK NORMALLY408
(a) PROBLEM IN COMMON CIRCUIT FOR TRANSMISSION (ALWAYS STAYS IN 2ND)410
(b) PROBLEM IN H-L CIRCUIT410
(c) PROBLEM IN SPEED CIRCUIT411
(d) PROBLEM IN 4TH CIRCUIT (DOES NOT ENTER 4TH)411
(e) CONTACT IN H-L CIRCUIT412
(f) CONTACT IN SPEED CIRCUIT414
(g) CONTACT IN 4TH CIRCUIT (ALWAYS STAYS IN 4TH)416
(h) PROBLEM IN FORWARD CIRCUIT (REVERSE IS NORMAL)417
(i) PROBLEM IN REVERSE CIRCUIT (FORWARD IS NORMAL)419
(j) PROBLEM IN COMMON CIRCUIT FOR FORWARD AND REVERSE (DOES NOT TRAVEL FORWARD,PARKING BRAKE IS NORMAL)421
(k) CONTACT IN FORWARD CIRCUIT423
(l) CONTACT IN REVERSE CIRCUIT425
(m) PROBLEM IN COMMON CIRCUIT FOR FORWARD AND REVERSE427
E-9 KICK-DOWN SWITCH DOES NOT WORK428
E-10 KICK-DOWN WORKS ONLY WHEN KICK-DOWN SWITCH IS ON430
E-11 KICK-DOWN OPERATION CANNOT BE CANCELED430
(a) NOT CANCELED EVEN WHEN DIRECTIONAL LEVER IS MOVED FROM F TO N OR R430
(b) NOT CANCELED EVEN WHEN SPEED LEVEL IS MOVED FROM 2ND TO OTHER POSITION (BECOMES 4TH)431
E-12 KICK-DOWN SWITCH IS ACTUATED BY MISTAKE WHEN TRAVELING IN 2ND433
TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (CHASSIS RELATED) (T MODE)434
POWER TRAIN435
T-1 MACHINE DOES NOT START435
T-2 TRAVEL SPEED IS SLOW, THRUSTING POWER IS WEAK, LACKS POWER ON SLOPES437
T-3 EXCESSIVE SHOCK WHEN STARTING MACHINE OR SHIFTING GEAR439
T-4 EXCESSIVE TIME LAG WHEN STARTING MACHINE OR SHIFTING GEAR440
T-5 TORQUE CONVERTER OIL TEMPERATURE IS HIGH441
STEERING SYSTEM442
T-6 STEERING DOES NOT TURN442
T-7 STEERING WHEEL IS HEAVY443
T-8 STEERING WHEEL WOBBLES OR THERE IS EXCESSIVE SHOCK444
T-9 MACHINE STEERS TO ONE SIDE WHEN TRAVELING444
T-10 TURNING RADIUS TO LEFT AND RIGHT IS DIFFERENT444
BRAKE SYSTEM445
T-11 BRAKES DO NOT WORK OR BRAKING EFFECT IS POOR445
T-12 BRAKES ARE NOT RELEASED OR BRAKES DRAG446
T-13 PARKING BRAKE IS NOT RELEASED OR BRAKE DRAGS447
WORK EQUIPMENT448
T-14 LIFT ARM DOES NOT RISE448
T-15 LIFT ARM MOVEMENT IS SLOW OR LIFT ARM LACKS LIFTING POWER449
T-16 WHEN LIFT ARM IS RAISED, IT MOVES SLOWLY AT A CERTAIN HEIGHT450
T-17 FORK CANNOT BE PUSHED WITH LIFT ARM CYLINDER (FORK FLOATS)450
T-18 EXCESSIVE HYDRAULIC DRIFT OF LIFT ARM450
T-19 LIFT ARM SHAKES DURING OPERATION450
T-20 LIFT ARM DROPS MOMENTARILY WHEN CONTROL LEVER IS OPERATED FROM HOLE TO RAISE451
T-21 FORK DOES NOT TILT BACK452
T-22 FORK MOVEMENT IS SLOW OR TILT-BACK LACKS POWER453
T-23 FORK MOVEMENT BECOMES SLOW DURING TILT-BACK OPERATION454
T-24 FORK CANNOT BE PUSHED WITH FORK CYLINDER454
T-25 EXCESSIVE HYDRAULIC DRIFT OF FORK454
T-26 FORK SHAKES DURING LOADING OPERATION455
T-27 FORK DUMPS MOMENTARILY WHEN CONTROL LEVER IS OPERATED FROM HOLD TO TILT455
T-28 LIFT ARM, FORK CONTROL LEVERS ARE HEAVY OR DO NOT MOVE SMOOTHLY456
TROUBLESHOOTING OF ECSS (ELECTRONICALLY CONTROLLED SUSPENSION SYSTEM) (D MODE) (OPTION)457
JUDGEMENT TABLE FOR CONTROLLER ELECTRICAL SYSTEM458
D-1 ECSS DOES NOT WORK459
(a) ERROR CODE [d0] IS DISPLAYED460
(b) ERROR CODE [d1] IS DISPLAYED460
(c) ERROR CODE [d2] IS DISPLAYED461
(d) ERROR CODE [d3] IS DISPLAYED461
(e) ERROR CODE [d4] IS DISPLAYED462
(f) NO ABNORMALITY DISPLAY IS GIVEN462
D-2 ECSS CANNOT BE CANCELED466
D-3 OUTPUT IS TURNED ON (TRAVEL SPEED DOES NOT BECOME 5 km/h) (DEVEATES AROUND 5 km/h) 467
D-4 OUTPUT IS TURNED ON WHEN TRANSMISSION IS IN 1ST467
D-5 OUTPUT IS TURNED ON WHEN TRANSMISSION IS IN 4TH468
D-6 CONTROLLER LED CODE IS NOT DISPLAYED469
D-7 ECSS IS ABNORMAL BUT MAIL NONITOR DOES NOT GIVE ABNORMALITY DISPLAY469
30 DISASSEMBLY AND ASSEMBLY470
METHOD OF USING MANUAL472
PRECAUTIONS WHEN CARRYING OUT OPERATION473
SPECIAL TOOL LIST475
STARTING MOTOR477
REMOVAL477
INSTALLATION477
ALTERNATOR478
REMOVAL 478
INSTALLATION478
ENGINE OIL COOLER479
REMOVAL 479
INSTALLATION479
FUEL INJECTION PUMP480
REMOVAL 480
INSTALLATION481
WATER PUMP482
REMOVAL 482
INSTALLATION482
TURBOCHARGER483
REMOVAL 483
INSTALLATION483
NOZZLE HOLDER484
REMOVAL 484
INSTALLATION484
THERMOSTAT485
REMOVAL 485
INSTALLATION485
CYLINDER HEAD486
REMOVAL 486
INSTALLATION490
RADIATOR492
REMOVAL 492
INSTALLATION494
ENGINE495
REMOVAL 495
INSTALLATION500
TORQUE CONVERTER, TRANSMISSION502
REMOVAL 502
INSTALLATION509
TORQUE CONVERTER511
DISASSEMBLY511
ASSEMBLY513
TRANSMISSION516
DISASSEMBLY516
ASSEMBLY521
TRANSMISSION CLUTCH PACK527
DISASSEMBLY527
ASSEMBLY536
PARKING BRAKE548
DISASSEMBLY548
ASSEMBLY550
TRANSMISSION CONTROL VALVE553
REMOVAL 553
INSTALLATION555
DISASSEMBLY556
ASSEMBLY561
TRANSMISSION ACCUMULATOR VALVE567
DISASSEMBLY567
ASSEMBLY568
DRIVE SHAFT569
DISASSEMBLY569
ASSEMBLY571
FRONT AXLE573
REMOVAL 573
INSTALLATION575
REAR AXLE 576
REMOVAL 576
INSTALLATION579
FRONT DIFFERENTIAL582
REMOVAL 582
INSTALLATION585
REAR DIFFERENTIAL587
REMOVAL 587
INSTALLATION590
DIFFERENTIAL592
DISASSEMBLY592
ASSEMBLY595
FINAL DRIVE603
DISASSEMBLY603
ASSEMBLY606
CENTER HINGE PIN610
REMOVAL 610
INSTALLATION619
STEERING VALVE (ORBIT-ROLL)625
REMOVAL 625
INSTALLATION626
STEERING VALVE627
DISASSEMBLY627
ASSEMBLY630
REMOVAL 635
INSTALLATION636
STEERING DEMAND VALVE637
DISASSEMBLY637
ASSEMBLY641
STEERING, SWITCH PUMP645
REMOVAL 645
INSTALLATION648
STEERING CYLINDER649
REMOVAL 649
INSTALLATION650
BRAKE VALVE651
REMOVAL 651
INSTALLATION652
RIGHT BRAKE VALVE (TANDEM)653
DISASSEMBLY653
ASSEMBLY654
LEFT BRAKE VALVE (SINGLE)655
DISASSEMBLY655
ASSEMBLY656
SLACK ADJUSTER657
REMOVAL 657
INSTALLATION658
DISASSEMBLY659
ASSEMBLY660
BRAKE661
DISASSEMBLY661
ASSEMBLY667
PARKING BRAKE DISC676
REMOVAL 676
INSTALLATION678
HYDRAULIC TANK679
REMOVAL 679
INSTALLATION681
BRAKE COOLING OIL TANK682
REMOVAL 682
INSTALLATION683
BRAKE OIL COOLER684
REMOVAL 684
INSTALLATION686
WORK EQUIPMENT, PPC, BRAKE COOLING PUMP687
REMOVAL 687
INSTALLATION690
PPC VALVE691
REMOVAL 691
INSTALLATION692
DISASSEMBLY693
ASSEMBLY694
MAIN CONTROL VALVE695
REMOVAL 695
INSTALLATION697
DISASSEMBLY698
ASSEMBLY700
FORK CYLINDER702
REMOVAL 702
INSTALLATION703
LIFT ARM CYLINDER704
REMOVAL 704
INSTALLATION705
GRAPPLE ARM CYLINDER706
REMOVAL 706
INSTALLATION707
HYDRAULIC CYLINDER708
DISASSEMBLY708
ASSEMBLY711
WORK EQUIPMENT714
REMOVAL 714
INSTALLATION718
COUNTERWEIGHT720
REMOVAL 720
INSTALLATION720
FUEL TANK721
REMOVAL 721
INSTALLATION722
CAB (OPTION)723
REMOVAL 723
INSTALLATION724
MAIN CMONITOR725
REMOVAL 725
INSTALLATION726
MAINTENANCE MONITOR727
REMOVAL 727
INSTALLATION727
40 MAINTENANCE STANDARD728
ENGINE MOUNT, TRANSMISSION MOUNT 729
TORQUE CONVERTER731
TRANSMISSION732
TRANSMISSION CONTROL VALVE740
DRIVE SHAFT 747
DIFFERENTIAL748
FINAL DRIVE750
AXLE MOUNT751
STEERING COLUMN753
STEERING VALVE754
STEERING CYLINDER MOUNT755
SLACK ADJUSTER756
BRAKE VALVE757
BRAKE760
PARKING BRAKE762
TORQUE CONVERTER, TRANSMISSION PUMP763
STEERING, SWITCH PUMP764
HYDRAULIC, PPC PUMP765
PPC VALVE766
CUT-OFF VALVE767
MAIN CONTROL VALVE768
LIFT ARM CYLINDER770
FORK CYLINDER771
CENTER HINGE PIN772
WORK EQUIPMENT LINKAGE776
FORK POSITIONER AND LIFT ARM KICK-OUT779
90 OTHERS780
BRAKE PIPING781
HYDRAULIC PIPING782
WORK EQUIPMENT HYDRAULIC CIRCUIT DIAGRAM783
ELECTRIC CIRCUIT DIAGRAM (1/4)784
ELECTRIC CIRCUIT DIAGRAM (2/4)785
ELECTRIC CIRCUIT DIAGRAM (3/4)786
ELECTRIC CIRCUIT DIAGRAM (4/4)787
ELECTRIC CIRCUIT DIAGRAM ECSS788
CONNECTOR PIN ARRANGEMENT DIAGRAM (1/3)789

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S.M 25/12/24