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Komatsu WA180-1 Wheel Loader Shop Manual SEBM034906 PDF
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Komatsu WA180-1 Wheel Loader Shop Manual SEBM034906 – PDF DOWNLOAD
MACHINE MODEL SERIAL No.
WA180-1 10001 and up
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Description
Komatsu WA180-1 Wheel Loader Shop Manual SEBM034906 – PDF DOWNLOAD
FILE DETAILS:
Komatsu WA180-1 Wheel Loader Shop Manual SEBM034906 – PDF DOWNLOAD
Language : English
Pages : 505
Downloadable : Yes
File Type : PDF
TABLE OF CONTENTS:
Komatsu WA180-1 Wheel Loader Shop Manual SEBM034906 – PDF DOWNLOAD
MACHINE MODEL SERIAL No.
WA180-1 10001 and up
COVER 1
CONTENTS 2
10 ENGINE 30
11 STRUCTRE AND FUNCTION 30
ENGINE MOUNT 31
RADIATOR 32
FUEL TAKE AND PIPING 33
12 TESTING AND ADJUSTING 34
TABLE OF JUDGEMENT STANDARD 35
TESTING AND ADJUSTING TOOL LIST 36
ADJUSTING VALVE CLEARANCE 37
MEASURING COMPRESSION PRESSURE 40
TESTING AND ADJUSTING FUEL INJECTION TIMING 41
MEASURING ENGING OIL PRESSURE AND TEMPERATURE 42
MEASURING BLOW-BY PRESSURE 43
TESTING AND ADJUSTING FAN BELT TENDION 44
MEASURING EXHAUST GAS COLOR 45
MEASURING OPERATING FORCE AND OPERATION ANGLE OF ACCELERATOR PEDAL 46
13 DIAASSEMBLY AND ASSEMBLY 48
STARTING MOTOR 49
REMOVAL 49
INSTALLATION 49
ALTERNATOR 50
REMOVAL 50
INSTALLATION 50
ENGINE OIL COOLER 51
REMOVAL 51
INSTALLATION 51
FUEL INJECTION PUMP 52
REMOVAL 52
INSTALLATION 53
WATER PUMP 55
REMOVAL 55
INSTALLATION 56
NOZZLE HOLDER 57
REMOVAL 57
INSTALLATION 57
TURBOCHARGER 58
REMOVAL 58
INSTALLATION 58
CYLINDER HEAD 59
REMOVAL 59
INSTALLATION 62
RADIATOR 66
REMOVAL 66
INSTALLATION 69
ENGINE 72
REMOVAL 72
INSTALLATION 78
FUEL TANK 84
REMOVAL 84
INSTALLATION 85
20 POWER TRAIN 86
21 STRUCTURE AND FUNCTION 86
GENERAL 87
HYDRAULIC CIRCUIT FOR POWER TRAIN 89
HYDRAULIC CIRCUIT DIAGRAM FOR POWER TRAIN 90
FORWARD 1ST 91
TORQUE CONVERTER AND TRANSMISSION PIPING 93
TORQUE CONVERTER CHARGING PUMP 94
TORQUE CONVERTER 95
TORQUE CONVERTER OIL FILTER 97
TORQFLOW TRANSMISSION 98
CLUTCH PACK 100
TRANSMISSION CONTROL VALVE 105
TORUE CONVERTER OIL OUTLET VALVE 107
MIAN REGULATOR VALVE 108
QUICK RETURN VALVE AND ACCUMULATOR 109
POWER MODULATION FUNCTION 111
ACTION OF THE CLUTCH CUT-OFF VALVE 115
DRIVE SHAFT 117
AXLE 118
DIFFERENTIAL 120
FINAL DRIVE 124
AXLE MOUNT 125
TIRE AND WHEEL 127
22 TESTING AND ADJUSTING 128
STANDARD VALUE TABLE 129
TOOL LIST FOR TESTING AND ADJUSTING 130
MEASURING ENGINE STALL SPEED 131
MEASURING OIL PRESSURE OF TORQUE CONVERTER AND TRANSMISSION 133
MEASURING SHIFT LEVER 135
MEASURING VALEV SPOOL OPERATING FORCE AND TRAVEL 136
TROUBLESHOOTING 138
PRECAUTIONS WHEN TROUBLESHOOTING 139
METHOD OF READING TROUBLESHOOTING TABLE 141
PREVENTING RECURRENCE OF TROUBLE 143
TROUBLESHOOTING TABLE 144
1 MACHINE DOES NOT MOVE OFF 144
2 MACHINE SPEED IS LOW, THRUST IS WEAK, GRADEABILITY FALLS OFF 146
3 LARGE SHOCK WHEN MOVING OFF OR CHANGING GEAR 148
4 LARGE TIME LAG WHEN MOVING OFF OR CHANGING GEAR 149
5 OIL TEMPERATUER IN TORQUE CONVERTER IS HIGH 150
23 DISASSEMBLY AND ASSEMBLY 151
TORQUE CONVERTER CHARGING PUMP 152
REMOVAL 152
INSTALLATION 152
TORQUE CONVERTER, TRANSMISSION 153
REMOVAL 153
INSTALLATION 160
TORQUE CONVERTER 167
DISASSEMBLY 167
ASSEMBLY 170
TRANSIMISSION 173
DISASSEMBLY 173
ASSEMBLY 180
CLUTCH PACK 190
DISASSEMBLY 190
ASSEMBLY 196
TRANSMISSION VALVE 208
REMOVAL 208
INSTALLATION 210
TRANSMISSION CONTROL VALVE 212
DISASSEMBLY 212
ASSEMBLY 216
DRIVE SHAFT 222
DISASSEMBLY 222
ASSEMBLY 224
FRONT AXLE 226
REMOVAL 226
INSTALLATION 228
REAR AXLE 230
REMOVAL 230
INSTALLATION 234
DIFFERENTIAL 239
DISASSEMBLY 239
ASSEMBLY 243
AXLE HOUSING 253
DISASSEMBLY 253
ASSEMBLY 259
24 MAINTENANCE STANDARD 265
TANSMISSION AND ENGINE MOUNT 266
TORQUE CONVERTER CHARGING PUMP 267
TORQUE CONVERTER 268
TRANSMISSION 269
TRANSMISSION CLUTCH ASSEMBLY 271
TRANSMISSION CONTROL VALVE 273
AXLE 275
DIFFERENTIAL 277
FINAL DRIVE 279
DRIVE SHAFT 280
AXLE MOUNT 281
40 STEERING SYSTEM 283
41 STRUCTRE AND FUNCTION 283
GENERAL 284
HYDRAULIC CIRCIT FOR STEERING 285
HYDRAULIC CIRCUIT DIAGRAM FOR STEERING 285
STEERING VALVE (ORBIT-ROLL VALVE) 286
PRIORITY VALVE 294
STEERING CYLINDER 297
CENTER HINGE PIN 298
42 TESTING AND ADJUSTING 299
STANDARD VALUE TABLE 300
TOOL LIST FOR TESTING AND ADJUSTING 300
MEASURING STEERING WHEEL PLAY 301
STEERING OIL PRESSURE 303
TROUBLESHOOTING 304
TROUBLESHOOTING TABLE 305
1 STEERING WHEEL DOES NOT TURN 305
2 STEERING WHEEL ID SLUGGISH 306
3 STEERING WHEEL MOVES UNSTEADILY OR IS SUBJECTED TO LARGE SHOCK 307
4 MACHINE TENDS TO TURN NATURALLY IN ONE PARTICULAR DIRECTION WHEN TRAVELING 307
5 LEFT AND RIGHT TURNING RADII ARE DIFFERENT 307
43 DISASSEMBLY AND ASSEMBLY 308
STEERING VALVE 309
REMOVAL 309
INSTALLATION 310
DISASSEMBLY 311
ASSEMBLY 314
DOUBLE RELIEF VALVE 318
DISASSEMBLY 318
ASSEMBLY 319
PRIORITY VALVE 320
REMOVAL 320
INSTALLATION 321
STEERING SYLINDER 322
REMOVAL 322
INSTALLATION 322
DISASSMEBLY 323
ASSEMBLY 325
CENTER HINGE PIN 328
REMOVAL 328
INSTALLATION 335
44 MAINTENANCE STANDARD 343
STEERING CYLINDER MOUNT 344
STEERING CYLINDER 345
CENTER HINGE PIN 346
STEERING COLUMN 348
PRIORITY VALVE 349
50 BRAKE SYSTEM 350
51 STRCTURE AND FUNCTION 350
GENERAL 351
POWER MASTER CYLINDER 353
BRAKE 357
PARKING BRAKE 359
BRAKE CALIPER 360
52 TESTING AND ADJUSTING 361
STANDARD VALUE TABLE 362
TOOL LIST FOR TESTING AND ADJUSTING 363
MEASURING BRAKE PEDAL 364
TESTING AND ADJUSTING OF BRAKE PEDAL LINKAGE 365
BRAKE PERFORMANCE 367
CHECKING BRAKE OIL PRESSURE 368
MEASURING WEAR OF BRAKE DISC 369
AIR BLEEDING FROM BRAKE LINE 370
PARKING BRAKE PERFORMANCE 371
CHECKING AND ADJUSTING PARKING BRAKE 372
MEASURING CLEARANCE 374
TROUBLESHOOTING 375
TROUBLESHOOTING TABLE 376
1 BRAKE IS INEFFECTIVE OR NOT VERY EFFECTIVE 376
2 BRAKE CANNOT BE RELEASED OR DRAGS 377
53 DISASSEMLY AND ASSEMBLY 378
POWER MASTER CYLINDER 379
REMOVAL 379
INSTALLATION 380
DISASSEMBLY 381
ASSEMBLY 384
PARKING BRAKE 389
REMOVAL 389
INSTALLATION 391
PARKING BRAKE PAD 393
REMOVAL 393
INSTALLATION 394
54 MAINTENANCE STANDARD 395
POWER MASTER CYLINDER 396
BRAKE 397
PARKING BRAKE 398
60 WORKEQUIPMENT SYSTEM 399
61 STRUCTRE AND FUNCTION 399
GENERAL 400
HYDRAULIC CIRCUIT 401
HYDRAULIC CIRUIT DIAGRAM 402
HYDRAULIC TANK 403
OIL FILTER BYPASS VALVE 404
BREATHER 404
HYDRAULIC AND STEERING PUMP 405
HYDRAULICA CYLINDER 406
MIAN CONTROL VALVE 407
SAFETY VALVE 415
SUCTION VALVE 416
RELIEF VALVE 417
WORK EQUIPMENT LEVER LINKAGE 418
BUCKET LINKAGE 419
BUCKET POSITIONER AND BOOM KICK-OUT 421
62 TESTING AND ADJUSTING 422
STANDARD VALUE TABLE 423
TOOL LIST FOR TESTING AND ADJUSTING 424
MEASURING DUMP AND LIFT CONTROL LEVERS 425
ADJUSTING DUMP AND LIFT CONTROL LECERS 426
MEASURING THE DUMP AND LIFT CONTROL VALVE SPOOL TRAVEL 427
MEASURING HYRAULIC PRESSURE 428
MEASURING LIFT ARM AND BUCKET 430
MEASURING HYDRAULIC DRIFT OF LIFT ARM AND BUCKET 431
ADJUSTING BUCKET POSITIONER 432
ADJUSTING BOOM KICK-OUT 433
TROUBLESHOOTING 434
TROUBLESHOOTING TABLE 435
1 LIFT ARM DOES NOT RISE 435
2 LIFT ARM MOVES SLOWLY OR DOES NOT HAVE SUFFICIENT LIFTING POWER 436
3 LIFT ARM MOVEMENT BECOMES SLOW AFTER IT REACHES A CERTAIN HEIGHT 437
4 BUCKET CANNOT BE HELD DOWN WITH LIFT CYLINDER 437
5 LIFT ARM HAS LARGE HYDRAULIC DRIFT 437
6 LIFTARM MOVEMENT IS UNSTEADY DURING WORK 437
7 LIFT ARM DESCENDS MOMENTARILY WHEN CONTROL LEVER IS SHIFTED FROM “HOLE” TO “RAISE” 437
8 BUCKET DOES NOT TILT BACK 438
9 BUCKET MOVES SLOWLY OR HAS INSUFFICIENT TILE BACK POWER 439
10 BUCKET MOVEMENT BECOMES SLOW DURING TILT BACK 440
11 BUCKET CANNOT BE HELD DOWN THE DUMP CYLINDER 440
12 BUCKET HAS LARGE HYDRAULIC DRIFT 440
13 BUCKET MOVES UNSTEADILY WHEN MACHINE TRAVELS UNDER LOAD 440
14 BUCKET DUMPS MOMENTARILY WHEN CONTROL LEVER IS SHIFTED FROM “HOLD” TO “TILT BACK” 440
15 CONTROL LEVERS OF LIFT ARM AND BUCKET MOVE STIFFLY AND SLUGGISHLY 441
63 DISASSEMBLY AND ASSEMBLY 442
HYDRAULIC TANK 443
REMOVAL 443
INSTALLATION 444
HYDRAULIC FLITER 445
REMOVAL 445
INSTALLATION 445
HYDRAULIS-STEERING PUMP 446
REMOVL 446
INSTALLATION 447
MAIN CONTROL VALVE 448
REMOVAL 448
INSTALLATION 450
DISASSEMBLY 452
ASSEMBLY 454
DUMP CYLINDER 456
REMOVAL 456
INSTALLATION 457
DISASSEMBLY 460
ASSEMBLY 462
LIFT CYLINDER 458
REMOVAL 458
INSTALLATION 459
DISASSEMBLY 465
ASSEMBLY 467
WORK EQUIPMENT 470
REMOVAL 470
INSTALLATION 473
CONTERWEIGHT 476
REMOVAL 476
INSTALLATION 476
64 MAINTENANCE STANDARD 477
MAIN CONTROL VALVE 478
DUMP CYLINDER 480
LIFT CYLINDER 481
WORK EQUIPMENT 482
BUCKET POSITIONER AND BOOM KICK-OUT 484
BUCKET 485
HYDRAULIC AND STEERING PUMP 486
80 ELECTRIC AND ELECTRONIC SYSTEM 487
81 STRUCTRE AND FUNCTION 487
CLUSTER GAUGE 488
PROXIMITY SWITCH 489
ENGINE STARING CIRCUIT 491
ENGINE STOP CIRCUIT 492
PREHEATING CIRCUIT 493
PREHEATING WITH STARTING SWITCH 493
ELECTRICAL WIRING DIAGRAM 494
ELECTRICAL WIRING DIAGRAM CIRCUIT 495
83 DISASSEMBLY AND ASSEMBLY 496
INSTRUMENT PANEL 497
REMOVAL 497
INSTALLATION 498
90 OTHERS 499
91 ELECTRICAL SYSTEM 499
CAB 500
AIR CONDITIONER 501
AIR CONDITIONER PIPING 501
AIR CONDITIONER WIRING DIAGRAM 502
AIR CONDITIONER ELECTRIC CIRCUIT 502
AIR CONDITIONER UNIT 503
AIR CONDITIONER COMPESSOR 504
AIR CONDITIONER DRY RESERVOIR 505
CONTENTS 2
10 ENGINE 30
11 STRUCTRE AND FUNCTION 30
ENGINE MOUNT 31
RADIATOR 32
FUEL TAKE AND PIPING 33
12 TESTING AND ADJUSTING 34
TABLE OF JUDGEMENT STANDARD 35
TESTING AND ADJUSTING TOOL LIST 36
ADJUSTING VALVE CLEARANCE 37
MEASURING COMPRESSION PRESSURE 40
TESTING AND ADJUSTING FUEL INJECTION TIMING 41
MEASURING ENGING OIL PRESSURE AND TEMPERATURE 42
MEASURING BLOW-BY PRESSURE 43
TESTING AND ADJUSTING FAN BELT TENDION 44
MEASURING EXHAUST GAS COLOR 45
MEASURING OPERATING FORCE AND OPERATION ANGLE OF ACCELERATOR PEDAL 46
13 DIAASSEMBLY AND ASSEMBLY 48
STARTING MOTOR 49
REMOVAL 49
INSTALLATION 49
ALTERNATOR 50
REMOVAL 50
INSTALLATION 50
ENGINE OIL COOLER 51
REMOVAL 51
INSTALLATION 51
FUEL INJECTION PUMP 52
REMOVAL 52
INSTALLATION 53
WATER PUMP 55
REMOVAL 55
INSTALLATION 56
NOZZLE HOLDER 57
REMOVAL 57
INSTALLATION 57
TURBOCHARGER 58
REMOVAL 58
INSTALLATION 58
CYLINDER HEAD 59
REMOVAL 59
INSTALLATION 62
RADIATOR 66
REMOVAL 66
INSTALLATION 69
ENGINE 72
REMOVAL 72
INSTALLATION 78
FUEL TANK 84
REMOVAL 84
INSTALLATION 85
20 POWER TRAIN 86
21 STRUCTURE AND FUNCTION 86
GENERAL 87
HYDRAULIC CIRCUIT FOR POWER TRAIN 89
HYDRAULIC CIRCUIT DIAGRAM FOR POWER TRAIN 90
FORWARD 1ST 91
TORQUE CONVERTER AND TRANSMISSION PIPING 93
TORQUE CONVERTER CHARGING PUMP 94
TORQUE CONVERTER 95
TORQUE CONVERTER OIL FILTER 97
TORQFLOW TRANSMISSION 98
CLUTCH PACK 100
TRANSMISSION CONTROL VALVE 105
TORUE CONVERTER OIL OUTLET VALVE 107
MIAN REGULATOR VALVE 108
QUICK RETURN VALVE AND ACCUMULATOR 109
POWER MODULATION FUNCTION 111
ACTION OF THE CLUTCH CUT-OFF VALVE 115
DRIVE SHAFT 117
AXLE 118
DIFFERENTIAL 120
FINAL DRIVE 124
AXLE MOUNT 125
TIRE AND WHEEL 127
22 TESTING AND ADJUSTING 128
STANDARD VALUE TABLE 129
TOOL LIST FOR TESTING AND ADJUSTING 130
MEASURING ENGINE STALL SPEED 131
MEASURING OIL PRESSURE OF TORQUE CONVERTER AND TRANSMISSION 133
MEASURING SHIFT LEVER 135
MEASURING VALEV SPOOL OPERATING FORCE AND TRAVEL 136
TROUBLESHOOTING 138
PRECAUTIONS WHEN TROUBLESHOOTING 139
METHOD OF READING TROUBLESHOOTING TABLE 141
PREVENTING RECURRENCE OF TROUBLE 143
TROUBLESHOOTING TABLE 144
1 MACHINE DOES NOT MOVE OFF 144
2 MACHINE SPEED IS LOW, THRUST IS WEAK, GRADEABILITY FALLS OFF 146
3 LARGE SHOCK WHEN MOVING OFF OR CHANGING GEAR 148
4 LARGE TIME LAG WHEN MOVING OFF OR CHANGING GEAR 149
5 OIL TEMPERATUER IN TORQUE CONVERTER IS HIGH 150
23 DISASSEMBLY AND ASSEMBLY 151
TORQUE CONVERTER CHARGING PUMP 152
REMOVAL 152
INSTALLATION 152
TORQUE CONVERTER, TRANSMISSION 153
REMOVAL 153
INSTALLATION 160
TORQUE CONVERTER 167
DISASSEMBLY 167
ASSEMBLY 170
TRANSIMISSION 173
DISASSEMBLY 173
ASSEMBLY 180
CLUTCH PACK 190
DISASSEMBLY 190
ASSEMBLY 196
TRANSMISSION VALVE 208
REMOVAL 208
INSTALLATION 210
TRANSMISSION CONTROL VALVE 212
DISASSEMBLY 212
ASSEMBLY 216
DRIVE SHAFT 222
DISASSEMBLY 222
ASSEMBLY 224
FRONT AXLE 226
REMOVAL 226
INSTALLATION 228
REAR AXLE 230
REMOVAL 230
INSTALLATION 234
DIFFERENTIAL 239
DISASSEMBLY 239
ASSEMBLY 243
AXLE HOUSING 253
DISASSEMBLY 253
ASSEMBLY 259
24 MAINTENANCE STANDARD 265
TANSMISSION AND ENGINE MOUNT 266
TORQUE CONVERTER CHARGING PUMP 267
TORQUE CONVERTER 268
TRANSMISSION 269
TRANSMISSION CLUTCH ASSEMBLY 271
TRANSMISSION CONTROL VALVE 273
AXLE 275
DIFFERENTIAL 277
FINAL DRIVE 279
DRIVE SHAFT 280
AXLE MOUNT 281
40 STEERING SYSTEM 283
41 STRUCTRE AND FUNCTION 283
GENERAL 284
HYDRAULIC CIRCIT FOR STEERING 285
HYDRAULIC CIRCUIT DIAGRAM FOR STEERING 285
STEERING VALVE (ORBIT-ROLL VALVE) 286
PRIORITY VALVE 294
STEERING CYLINDER 297
CENTER HINGE PIN 298
42 TESTING AND ADJUSTING 299
STANDARD VALUE TABLE 300
TOOL LIST FOR TESTING AND ADJUSTING 300
MEASURING STEERING WHEEL PLAY 301
STEERING OIL PRESSURE 303
TROUBLESHOOTING 304
TROUBLESHOOTING TABLE 305
1 STEERING WHEEL DOES NOT TURN 305
2 STEERING WHEEL ID SLUGGISH 306
3 STEERING WHEEL MOVES UNSTEADILY OR IS SUBJECTED TO LARGE SHOCK 307
4 MACHINE TENDS TO TURN NATURALLY IN ONE PARTICULAR DIRECTION WHEN TRAVELING 307
5 LEFT AND RIGHT TURNING RADII ARE DIFFERENT 307
43 DISASSEMBLY AND ASSEMBLY 308
STEERING VALVE 309
REMOVAL 309
INSTALLATION 310
DISASSEMBLY 311
ASSEMBLY 314
DOUBLE RELIEF VALVE 318
DISASSEMBLY 318
ASSEMBLY 319
PRIORITY VALVE 320
REMOVAL 320
INSTALLATION 321
STEERING SYLINDER 322
REMOVAL 322
INSTALLATION 322
DISASSMEBLY 323
ASSEMBLY 325
CENTER HINGE PIN 328
REMOVAL 328
INSTALLATION 335
44 MAINTENANCE STANDARD 343
STEERING CYLINDER MOUNT 344
STEERING CYLINDER 345
CENTER HINGE PIN 346
STEERING COLUMN 348
PRIORITY VALVE 349
50 BRAKE SYSTEM 350
51 STRCTURE AND FUNCTION 350
GENERAL 351
POWER MASTER CYLINDER 353
BRAKE 357
PARKING BRAKE 359
BRAKE CALIPER 360
52 TESTING AND ADJUSTING 361
STANDARD VALUE TABLE 362
TOOL LIST FOR TESTING AND ADJUSTING 363
MEASURING BRAKE PEDAL 364
TESTING AND ADJUSTING OF BRAKE PEDAL LINKAGE 365
BRAKE PERFORMANCE 367
CHECKING BRAKE OIL PRESSURE 368
MEASURING WEAR OF BRAKE DISC 369
AIR BLEEDING FROM BRAKE LINE 370
PARKING BRAKE PERFORMANCE 371
CHECKING AND ADJUSTING PARKING BRAKE 372
MEASURING CLEARANCE 374
TROUBLESHOOTING 375
TROUBLESHOOTING TABLE 376
1 BRAKE IS INEFFECTIVE OR NOT VERY EFFECTIVE 376
2 BRAKE CANNOT BE RELEASED OR DRAGS 377
53 DISASSEMLY AND ASSEMBLY 378
POWER MASTER CYLINDER 379
REMOVAL 379
INSTALLATION 380
DISASSEMBLY 381
ASSEMBLY 384
PARKING BRAKE 389
REMOVAL 389
INSTALLATION 391
PARKING BRAKE PAD 393
REMOVAL 393
INSTALLATION 394
54 MAINTENANCE STANDARD 395
POWER MASTER CYLINDER 396
BRAKE 397
PARKING BRAKE 398
60 WORKEQUIPMENT SYSTEM 399
61 STRUCTRE AND FUNCTION 399
GENERAL 400
HYDRAULIC CIRCUIT 401
HYDRAULIC CIRUIT DIAGRAM 402
HYDRAULIC TANK 403
OIL FILTER BYPASS VALVE 404
BREATHER 404
HYDRAULIC AND STEERING PUMP 405
HYDRAULICA CYLINDER 406
MIAN CONTROL VALVE 407
SAFETY VALVE 415
SUCTION VALVE 416
RELIEF VALVE 417
WORK EQUIPMENT LEVER LINKAGE 418
BUCKET LINKAGE 419
BUCKET POSITIONER AND BOOM KICK-OUT 421
62 TESTING AND ADJUSTING 422
STANDARD VALUE TABLE 423
TOOL LIST FOR TESTING AND ADJUSTING 424
MEASURING DUMP AND LIFT CONTROL LEVERS 425
ADJUSTING DUMP AND LIFT CONTROL LECERS 426
MEASURING THE DUMP AND LIFT CONTROL VALVE SPOOL TRAVEL 427
MEASURING HYRAULIC PRESSURE 428
MEASURING LIFT ARM AND BUCKET 430
MEASURING HYDRAULIC DRIFT OF LIFT ARM AND BUCKET 431
ADJUSTING BUCKET POSITIONER 432
ADJUSTING BOOM KICK-OUT 433
TROUBLESHOOTING 434
TROUBLESHOOTING TABLE 435
1 LIFT ARM DOES NOT RISE 435
2 LIFT ARM MOVES SLOWLY OR DOES NOT HAVE SUFFICIENT LIFTING POWER 436
3 LIFT ARM MOVEMENT BECOMES SLOW AFTER IT REACHES A CERTAIN HEIGHT 437
4 BUCKET CANNOT BE HELD DOWN WITH LIFT CYLINDER 437
5 LIFT ARM HAS LARGE HYDRAULIC DRIFT 437
6 LIFTARM MOVEMENT IS UNSTEADY DURING WORK 437
7 LIFT ARM DESCENDS MOMENTARILY WHEN CONTROL LEVER IS SHIFTED FROM “HOLE” TO “RAISE” 437
8 BUCKET DOES NOT TILT BACK 438
9 BUCKET MOVES SLOWLY OR HAS INSUFFICIENT TILE BACK POWER 439
10 BUCKET MOVEMENT BECOMES SLOW DURING TILT BACK 440
11 BUCKET CANNOT BE HELD DOWN THE DUMP CYLINDER 440
12 BUCKET HAS LARGE HYDRAULIC DRIFT 440
13 BUCKET MOVES UNSTEADILY WHEN MACHINE TRAVELS UNDER LOAD 440
14 BUCKET DUMPS MOMENTARILY WHEN CONTROL LEVER IS SHIFTED FROM “HOLD” TO “TILT BACK” 440
15 CONTROL LEVERS OF LIFT ARM AND BUCKET MOVE STIFFLY AND SLUGGISHLY 441
63 DISASSEMBLY AND ASSEMBLY 442
HYDRAULIC TANK 443
REMOVAL 443
INSTALLATION 444
HYDRAULIC FLITER 445
REMOVAL 445
INSTALLATION 445
HYDRAULIS-STEERING PUMP 446
REMOVL 446
INSTALLATION 447
MAIN CONTROL VALVE 448
REMOVAL 448
INSTALLATION 450
DISASSEMBLY 452
ASSEMBLY 454
DUMP CYLINDER 456
REMOVAL 456
INSTALLATION 457
DISASSEMBLY 460
ASSEMBLY 462
LIFT CYLINDER 458
REMOVAL 458
INSTALLATION 459
DISASSEMBLY 465
ASSEMBLY 467
WORK EQUIPMENT 470
REMOVAL 470
INSTALLATION 473
CONTERWEIGHT 476
REMOVAL 476
INSTALLATION 476
64 MAINTENANCE STANDARD 477
MAIN CONTROL VALVE 478
DUMP CYLINDER 480
LIFT CYLINDER 481
WORK EQUIPMENT 482
BUCKET POSITIONER AND BOOM KICK-OUT 484
BUCKET 485
HYDRAULIC AND STEERING PUMP 486
80 ELECTRIC AND ELECTRONIC SYSTEM 487
81 STRUCTRE AND FUNCTION 487
CLUSTER GAUGE 488
PROXIMITY SWITCH 489
ENGINE STARING CIRCUIT 491
ENGINE STOP CIRCUIT 492
PREHEATING CIRCUIT 493
PREHEATING WITH STARTING SWITCH 493
ELECTRICAL WIRING DIAGRAM 494
ELECTRICAL WIRING DIAGRAM CIRCUIT 495
83 DISASSEMBLY AND ASSEMBLY 496
INSTRUMENT PANEL 497
REMOVAL 497
INSTALLATION 498
90 OTHERS 499
91 ELECTRICAL SYSTEM 499
CAB 500
AIR CONDITIONER 501
AIR CONDITIONER PIPING 501
AIR CONDITIONER WIRING DIAGRAM 502
AIR CONDITIONER ELECTRIC CIRCUIT 502
AIR CONDITIONER UNIT 503
AIR CONDITIONER COMPESSOR 504
AIR CONDITIONER DRY RESERVOIR 505
DESCRIPTION:
Komatsu WA180-1 Wheel Loader Shop Manual SEBM034906 – PDF DOWNLOAD
MACHINE MODEL SERIAL No.
WA180-1 10001 and up
GENERAL PRECAUTIONS :
Mistakes in operation are extremely dangerous. Read the OPERATION & MAINTENANCE MANUAL carefully BEFORE operating the machine.
1. Before carrying out any greasing or repairs, read all the precautions given on the decals which are fixed to the machine.
2. When carrying out any operation, always wear safety shoes and helmet. Do not wear loose work clothes, or clothes with buttons missing.
● Always wear safety glasses when hitting parts with a hammer.
● Always wear safety glasses when grinding parts with a grinder, etc.
3. If welding repairs are needed, always have a trained, experienced welder carry out the work. When carrying out welding work, always wear welding gloves, apron, glasses, cap and other clothes suited for welding work.
4. When carrying out any operation with two or more workers, always agree on the operating procedure before starting. Always inform your fellow workers before starting any step of the operation. Before starting work, hang UNDER REPAIR signs on the controls in the operator’s compartment.
5. Keep all tools in good condition and learn the correct way to use them.
6. Decide a place in the repair workshop to keep tools and removed parts. Always keep the tools and parts in their correct places. Always keep the work area clean and make sure that there is no dirt or oil on the floor. Smoke only in the areas provided for smoking. Never smoke while working.
PREPARATIONS FOR WORK:
7. Before adding oil or making repairs, park the machine on hard, level ground, and block the wheels or tracks to prevent the machine from moving.
8. Before starting work, lower blade, ripper, bucket or any other work equipment to the ground. If this is not possible, insert the safety pin or use blocks to prevent the work equipment from falling. In addition, be sure to lock all the control levers and hang warning signs on them.
9. When disassembling or assembling, support the machine with blocks, jacks or stands before starting work.
10. Remove all mud and oil from the steps or other places used to get on and off the machine. Always use the handrails, ladders or steps when getting on or off the machine. Never jump on or off the machine. If it is impossible to use the handrails, ladders or steps, use a stand to provide safe footing.
IMAGES PREVIEW OF THE MANUAL:
S.V 25/12/24
