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Komatsu WB140PS-2 WB150PS-2 Backhoe Loader Shop Manual PDF
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Komatsu WB140PS-2 WB150PS-2 Backhoe Loader Shop Manual PDF

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Komatsu WB140PS-2 WB150PS-2 Backhoe Loader Shop Manual WEBM002502 – PDF DOWNLOAD 

SERIAL NUMBERS
WB140PS-2-140F50001 and up
WB150PS-2-150F50001 and up
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Description

Komatsu WB140PS-2 WB150PS-2 Backhoe Loader Shop Manual WEBM002502 – PDF DOWNLOAD

FILE DETAILS:

Komatsu WB140PS-2 WB150PS-2 Backhoe Loader Shop Manual WEBM002502 – PDF DOWNLOAD 

Language : English
Pages : 419
Downloadable : Yes
File Type : PDF

TABLE OF CONTENTS:

Komatsu WB140PS-2 WB150PS-2 Backhoe Loader Shop Manual WEBM002502 – PDF DOWNLOAD 

SERIAL NUMBERS
WB140PS-2-140F50001 and up
WB150PS-2-150F50001 and up

MAIN MENU 0
COVER 1
CONTENTS 2
10 STRUCTURE AND FUNCTION 19
POWER TRAIN 20
TRANSMISSION 22
DRIVE SHAFTS 26
CONTROL VALVE BLOCK 28
FRONT AXLE 30
REAR AXLE 33
HYDRAULIC PUMP 38
HYDRAULIC STEERING SYSTEM 59
HYDRAULIC CIRCUIT (WB140PS-2) 61
HYDRAULIC CIRCUIT (WB150PS-2) 62
SHOVEL CONTROL VALVE 64
BACKHOE CONTROL VALVE 68
CLSS 75
SAFETY VALVE 90
SOLENOID VALVE 92
BRAKE PUMP 93
SHOVEL CYLINDERS 94
BACKHOE CYLINDERS 95
AIR-CONDITIONING UNIT 98
HOW THE AIR-CONDITIONING UNIT FUNCTIONS 99
ELECTRICAL DIAGRAM (1/7) 101
ELECTRICAL DIAGRAM (2/7) 103
ELECTRICAL DIAGRAM (3/7) 105
ELECTRICAL DIAGRAM (4/7) 107
ELECTRICAL DIAGRAM (5/7) 109
ELECTRICAL DIAGRAM (6/7) 111
ELECTRICAL DIAGRAM (7/7) 113
20 TESTING AND ADJUSTMENTS 116
NORMAL OR STANDARD TECHNICAL DATA 117
SPECIAL TOOLS 143
MEASURING ENGINE SPEED 144
ADJUSTING VALVE CLEARANCE 145
MEASURING COMPRESSION PRESSURE 146
TESTING AND ADJUSTING FUEL INJECTION TIMING 147
CHECKING AND TIGHTENING THE FAN – BELT 149
CHECKING AND TIGHTENING THE COMPRESSOR FAN – BELT 150
MEASURING ACCELERATOR PEDAL OPERATING TRAVEL AND ACCELERATOR LEVER 151
ADJUSTING BRAKE PEDAL TRAVEL, BRAKE ALIGNMENT, MICROSWITCHES 153
AIR BLEEDING – RELEASING RESIDUAL PRESSURE 154
CHECKING AND SETTING PRESSURE IN THE ATTACHMENTS HYDRAULIC CIRCUIT 157
TESTING AND ADJUSTING OF LOAD SENSING SIGNAL (LS VALVE) 163
CHECKING UNLOADING VALVE FUNCTIONALITY 164
TESTING PUMP DELIVERY 165
TESTING PRIORITY VALVE OPERATION 167
TESTING AND SETTING STEERING CONTROL SYSTEM PRESSURE 168
TESTING BRAKE SYSTEM 169
CONTROL OF ENGINE SPEED UNDER LOAD 171
TESTING PRESSURES IN THE POWER TRAIN GROUP 173
TESTING THE CORRECT FUNCTIONING OF THE POWER TRAIN CLUTCHES 175
ADJUSTING THE SENSOR FOR RETURN TO DIG DEVICE 176
ANALYSIS OF CAUSES HYDRAULIC DRIFT 177
TESTING THE AIR-CONDITIONING UNIT 182
30 REMOVAL AND INSTALLATION 185
HOW TO READ THE MANUAL 187
PRECAUTIONS TO BE TAKEN WHILE WORKING 188
SPECIAL TOOLS 189
STARTING MOTOR 193
REMOVAL 193
INSTALLATION 193
ALTERNATOR 194
REMOVAL 194
INSTALLATION 194
AIR-CONDITIONING UNIT COMPRESSOR 195
REMOVAL 195
INSTALLATION 196
INJECTION PUMP 197
REMOVAL 197
INSTALLATION 200
INJECTION NOZZLES 201
REMOVAL 201
INSTALLATION 201
THERMOSTAT 202
REMOVAL 202
INSTALLATION 202
COOLING LIQUID PUMP 203
REMOVAL 203
INSTALLATION 204
TURBOCOMPRESSOR 205
REMOVAL 205
INSTALLATION 206
CYLINDER HEAD 207
REMOVAL 207
INSTALLATION 210
ACCUMULATOR DISCONNECTING SWITCH 211
REMOVAL 211
INSTALLATION 211
FRONT COUNTERWEIGHT 212
REMOVAL 212
INSTALLATION 212
RADIATOR-OIL COOLER UNIT 213
REMOVAL 213
INSTALLATION 215
CONDENSER 216
REMOVAL 216
INSTALLATION 216
HYDRAULIC OIL COOLER 217
REMOVAL 217
INSTALLATION 218
TRANSMISSION OIL COOLER 219
REMOVAL 219
INSTALLATION 219
MUFFLER 220
REMOVAL 220
INSTALLATION 220
EXHAUST PIPE 220
REMOVAL 220
INSTALLATION 220
ENGINE HOOD 221
REMOVAL 221
INSTALLATION 222
CAB 223
REMOVAL 223
INSTALLATION 226
HEAT AND AIR-CONDITIONING GROUP 227
REMOVAL 227
INSTALLATION 228
FUEL TANK 229
REMOVAL 229
INSTALLATION 229
HYDRAULIC OIL TANK 230
REMOVAL 230
INSTALLATION 230
ENGINE-GEARBOX- PUMP GROUP 231
REMOVAL 231
INSTALLATION 236
PISTON PUMP 237
REMOVAL 237
INSTALLATION 238
TRANSMISSION 239
REMOVAL 239
INSTALLATION 242
CONVERTOR 243
REMOVAL 243
INSTALLATION 243
TRANSMISSION-REVERSE, DIRECTION INDICATOR AND HEADLIGHT DIPPER BEARM CONTROL GROUP 244
REMOVAL 244
INSTALLATION 244
STEERING UNIT 245
REMOVAL 245
INSTALLATION 245
WORKING BRAKE PUMP GROUP 246
REMOVAL 246
INSTALLATION 246
FRONT WORKING EQUIPMENT CONTROL VALVE 247
REMOVAL 247
INSTALLATION 247
FRONT AXLE 248
REMOVAL 248
INSTALLATION 249
DISASSEMBLY 250
ASSEMBLY 268
REAR AXLE 290
REMOVAL 290
INSTALLATION 291
REAR AXLE FINAL DRIVE 292
DISASSEMBLY 292
ASSEMBLY 298
REAR AXLE 304
DISASSEMBLY 304
ASSEMBLY 325
FRONT BUCKET BOOM-RAISING CYLINDER 349
REMOVAL 349
INSTALLATION 349
FRONT BUCKET TILT CYLINDERS 350
REMOVAL 350
INSTALLATION 350
FRONT BUCKET 351
REMOVAL 351
INSTALLATION 351
FRONT WORKING EQUIPMENT 352
REMOVAL 352
INSTALLATION 353
BACKHOE CONTROL VALVE 354
REMOVAL 354
INSTALLATION 355
BACKHOE BOOM CYLINDER 356
REMOVAL 356
INSTALLATION 356
BACKHOE ARM CYLINDER 357
REMOVAL 357
INSTALLATION 357
TELESCOPIC ARM CYLINDER 358
REMOVAL 358
INSTALLATION 358
BACKHOE BUCKET CYLINDER 359
REMOVAL 359
INSTALLATION 359
OUTRIGGER CYLINDERS 360
REMOVAL 360
INSTALLATION 360
BACKHOE SWING CYLINDERS 361
REMOVAL 361
INSTALLATION 361
CYLINDERS 362
DISASSEMBLY 362
ASSEMBLY 364
BOOM SWING CYLINDER 367
DISASSEMBLY 367
ASSEMBLY 368
BOOM SAFETY CYLINDER 370
REMOVAL 370
INSTALLATION 370
BACKHOE WORKING EQUIPMENT 371
REMOVAL 371
INSTALLATION 371
BACKHOE BUCKET 372
REMOVAL 372
INSTALLATION 372
ARM 373
REMOVAL 373
INSTALLATION 373
TELESCOPIC ARM 374
REMOVAL 374
INSTALLATION 374
2ND ARM 375
REMOVAL 375
INSTALLATION 375
2ND ARM GUIDES 376
REMOVAL 376
INSTALLATION 376
BACKHOE BOOM 377
REMOVAL 377
INSTALLATION 377
BACKHOE SWING BUCKET 378
REMOVAL 378
INSTALLATION 378
BACKHOE SUPPORTS 379
REMOVAL 379
INSTALLATION 380
40 STANDARD MAINTENANCE 382
TRANSMISSION 384
FRONT AXLE 387
DIFFERENTIAL 387
PLANETARY -JOINT 388
STEERING UNIT CYLINDER 389
REAR AXLE 390
DIFFERENTIAL 390
PLANETARY – JOINT 391
BRAKES 392
DIFFERENTIAL LOCK 393
HYDRAULIC PUMP 395
2-SPOOL CONTROL VALVE 397
3- SPOOL CONTROL VALVE 399
6-SPOOL CONTROL VALVE 401
7-SPOOL CONTROL VALVE 404
8-SPOOL CONTROL VALVE 406
BRAKE PUMP 407
SHOVEL CYLINDER 408
BACKHOE CYLINDERS 410
FRONT WORKING EQUIPMENT 413
SWING BRACKET 415
BACKHOE WORKING EQUIPMENT 417

DESCRIPTION:

Komatsu WB140PS-2 WB150PS-2 Backhoe Loader Shop Manual WEBM002502 – PDF DOWNLOAD 

SERIAL NUMBERS
WB140PS-2-140F50001 and up
WB150PS-2-150F50001 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.

PRECAUTIONS DURING WORK :

11. When removing the oil filler cap, drain plug or hydraulic pressure measuring plugs, loosen them slowly to prevent the oil from spurting out. Before disconnecting or removing components of the oil, water or air circuits, first remove the pressure completely from the circuit.
12. The water and oil in the circuits are hot when the engine is stopped, so be careful not to get burned. Wait for the oil and water to cool before carrying out any work on the oil or water circuits.
13. Before starting work, remove the leads from the battery. ALWAYS remove the lead from the negative (-) terminal first.

IMAGES PREVIEW OF THE MANUAL:

S.V 22/12/24  

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