Komatsu WB150AWS-2N BACKHOE LOADER Shop Manual CEBM011300 PDF

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Komatsu WB150AWS-2N BACKHOE LOADER Shop Manual CEBM011300 – PDF DOWNLOAD

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Komatsu WB150AWS-2N BACKHOE LOADER Shop Manual CEBM011300 – PDF DOWNLOAD

Language : English
Pages :490
Downloadable : Yes
File Type : PDF

DESCRIPTION:

Komatsu WB150AWS-2N BACKHOE LOADER Shop Manual CEBM011300 – PDF DOWNLOAD

SERIAL NUMBERS WB150AWS-2N A90001 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 under- standing of the product and by showing him the correct way to perform
  repairs and make judgements. Make sure you under- stand 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 sections.
  These sections are further divided into each main group of components.

TABLE OF CONTENTS:

Komatsu WB150AWS-2N BACKHOE LOADER Shop Manual CEBM011300 – PDF DOWNLOAD

SERIAL NUMBERS WB150AWS-2N A90001 and UP

MAIN MENU 0
COVER 1
CONTENTS 2
FOREWORD 5
SAFETY 5
SAFETY NOTICE 5
IMPORTANT SAFETY NOTICE 5
GENERAL PRECAUTIONS 5
PREPARATIONS FOR WORK 5
PRECAUTIONS DURING WORK 5
GENERAL 7
HOW TO READ THE SHOP MANUAL 8
VOLUMES 8
DISTRIBUTION AND UPDATING 8
FILING METHOD 8
REVISED EDITION MARK 8
REVISIONS 8
SYMBOLS 8
HOISTING INSTRUCTIONS 9
HOISTING 9
WIRE ROPES 9
COATING MATERIALS 10
STANDARD TIGHTENING TORQUE 12
STANDARD TIGHTENING TORQUE OF BOLTS AND NUTS 12
TIGHTENING TORQUE OF HOSE NUTS 13
TIGHTENING TORQUE OF SPLIT FLANGE BOLTS 13
TIGHTENING TORQUE FOR FLARED NUTS 13
ELECTRIC WIRE CODE 14
CLASSIFICATION BY THICKNESS 14
CLASSIFICATION BY COLOR AND CODE 14
CONVERSION TABLES 15
METHOD OF USING THE CONVERSION TABLE 15
10 STRUCTURE AND FUNCTION 21
POWER TRAIN 24
TRANSMISSION 26
DIAGRAM OF THE POWER TRAIN 26
HYDRAULIC CONVERTER-TRANSMISSION CIRCUIT DIAGRAM 27
TRANSMISSION 28
DRIVE SHAFTS 32
DRIVE SHAFT FOR FORWARD AND REVERSE MOVEMENT 32
DRIVE SHAFT 33
DRIVEN GEAR SHAFT 34
DRIVEN SHAFT 4WD 35
FRONT AXLE 38
DIFFERENTIAL 38
FINAL REDUCTION JOINT 39
STEERING CYLINDER 42
REAR AXLE 44
DIFFERENTIAL 44
FINAL REDUCTION 46
BRAKES 48
STEERING CYLINDER 50
DIFFERENTIAL LOCKING 51
HYDRAULIC PUMP 52
FUNCTION 57
STRUCTURE 57
OPERATION 58
PUMP OPERATION 58
CONTROL OF DELIVERY 59
PC VALVE, LS VALVE, SERVO PISTON 60
LS VALVE 61
FUNCTION 61
OPERATION 62
PC VALVE 67
FUNCTION 67
OPERATION 68
WORKING MODE SOLENOID VALVE 72
FUNCTION 72
OPERATION 72
STEERING UNIT 74
TECHNICAL DATA 74
OPERATION 74
HYDRAULIC CIRCUIT 76
SHOVEL CONTROL VALVE 77
2-SPOOL 77
3-SPOOL 81
BACKHOE CONTROL VALVE 85
6-SPOOL 85
7-SPOOL 91
FOR TELESCOPIC ARM 91
FOR HAMMER 91
8-SPOOL 95
FOR HAMMER AND TELESCOPIC ARM 95
CLSS (CLOSED CENTER LOAD SENSING SYSTEM) 98
DESCRIPTION 98
CHARACTERISTICS 98
STRUCTURE 98
OPERATION 99
UNLOADING VALVE101
FUNCTION101
OPERATION101
INTRODUCTION OF THE LS PRESSURE104
OPERATION104
DELIVERY COMPENSATION105
INTRODUCTION105
FUNCTION105
OPERATION105
LIFD CONTROL SYSTEM108
FUNCTION108
OPERATION108
LS DECOMPRESSION VALVE109
DESCRIPTION109
OPERATION109
PRESSURE CUT-OFF VALVE110
DESCRIPTION110
OPERATION110
PRIORITY VALVE (ONLY FOR THE 2-3-SPOOL CONTROL VALVE)111
FUNCTION111
SOLENOID VALVE112
SOLENOID VALVE BLOCK ST1 – DIFFERENTIAL LOCKING – BACKHOE BOOM LOCKING112
SOLENOID VALVE GROUP ST2 – STEERING113
SAFETY VALVE114
BRAKE PUMP116
SHOVEL CYLINDERS118
RAISING CYLINDER118
DUMPING CYLINDER118
DUMP CYLINDER119
RAISE CYLINDER119
BACKHOE CYLINDERS120
BOOM120
ARM120
BUCKET121
OUTRIGGERS121
BOOM SWING122
TELESCOPIC ARM122
BACKHOE CYLINDERS124
BOOM124
ARM124
BUCKET124
BOOM SWING124
OUTRIGGER126
TELESCOPIC ARM126
FRONT WORKING EQUIPMENT128
SWING BRACKET130
BACKHOE WORK EQUIPMENT132
AIR-CONDITIONING UNIT134
AIR-CONDITIONING UNIT FUNCTION135
FOUR-WHEEL STEERING SYSTEM (4WS)136
DESCRIPTION136
OPERATION137
FRONT-WHEEL STEERING ONLY137
FRONT WHEELS TURN OPPOSITE DIRECTION OF REAR WHEELS138
ALL FOUR WHEELS TURN IN SAME DIRECTION139
20 TESTING, ADJUSTING AND TROUBLESHOOTING141
NORMAL OR STANDARD TECHNICAL DATA144
SPECIAL TOOLS156
MEASURING ENGINE SPEED157
ADJUSTING VALVE CLEARANCE158
MEASURING COMPRESSION PRES SURE159
FUEL INJECTION TIMING160
FAN BELT162
TENSION CHECK162
FAN BELT TENSION162
COMPRESSOR BELT163
CHECKING TENSION163
FAN BELT TENSION163
ACCELERATOR PEDAL AND LEVER164
OPERATING TRAVEL164
ACCELERATOR PEDAL TRAVEL ADJUSTING164
ACCELERATOR LEVER TRAVEL ADJUSTING165
BRAKE PEDAL AND ALIGNMENT166
TRAVEL AND MICRO SWITCHES166
MASTER CYLINDER ROD ADJUSTMENT166
MICROSWITCHES ADJUSTMENT166
AIR BLEEDING167
RELEASING RESIDUAL PRESSURE167
AIR BLEEDING FROM PUMP167
AIR BLEEDING FROM CYLINDERS167
AIR BLEEDING FROM OIL TANK168
HYDRAULIC OIL TANK PRESSURIZATION168
RELEASING RESIDUAL PRESSURE FROM CIRCUITS168
AIR BLEEDING FROM BRAKING CIRCUIT168
CHECKING AIR BLEEDING FROM BRAKING CIR CUIT169
ATTACHMENTS HYDRAULIC CIRCUIT170
CHECKING AND SETTING PRESSURE170
INTRODUCTION170
TESTING AND SETTING GENERAL VALVES172
TESTING AND SETTING SECONDARY VALVES173
MAIN AND SECONDARY VALVES SETTING175
SENSING SIGNAL (LS VALVE)177
UNLOADING VALVE178
ADJUSTING THE UNLOADING VALVE178
UNLOADING VALVE FUNCTIONALITY179
PRIORITY VALVE180
TESTING PRIORITY VALVE OPERATION180
PRIORITY VALVE CLEANING180
STEERING CONTROL SYSTEM PRESSURE181
TESTING181
SETTING181
BRAKE SYSTEM182
TESTING CIRCUIT AND BRAKE TIGHTNESS182
TESTING BRAKING GROUP LEAK TIGHTNESS183
ENGINE SPEED CONTROL184
UNDER LOAD184
PREPARING THE MACHINE184
TESTING WITH THE TORQUE CONVERTER UNDER STRESS185
TESTING THE TORQUE CONVERTER AND HYDRAULIC SYSTEM UNDER STRESS185
POWER TRAIN PRESSURES186
PREPARING THE MACHINE186
CONVERTER OIL PRESSURE186
CLUTCH ENGAGEMENT PRESSURE187
POWER TRAIN CLUTCHES FUNCTION188
PREPARATION OF THE MACHINE188
TESTING188
RETURN TO DIG DEVICE SENSOR189
ANALYSIS OF HYDRAULIC DRIFT190
FRONT EQUIPMENT190
TESTING FRONT BUCKET LIFTING190
TESTING FRONT BUCKET DUMPING191
BACKHOE192
BOOM TESTING192
ARM TESTING192
BUCKET TESTING193
OUTRIGGERS TESTING194
AIR-CONDITIONING UNIT195
TESTING THE WORKING TEMPERATURE195
CHECKING THE UNIT196
EMPTYING THE AIR CONDITIONING UNIT197
TROUBLESHOOTING198
FRONT AXLE198
REAR AXLES204
TRANSMISSION211
ELECTRONIC CONTROL UNIT INSPECTION215
FAILURE215
NUMERICAL ERROR215
ANOMALY215
30 DISASSEMBLY AND ASSEMBLY217
METHOD OF USING MANUAL220
PRECAUTIONS DURING OPERATION221
SPECIAL TOOLS224
STARTING MOTOR227
REMOVAL227
INSTALLATION227
ALTERNATOR228
REMOVAL228
INSTALLATION228
AIR CONDITIONING COMPRESSOR229
REMOVAL229
INSTALLATION230
INJECTION PUMP231
REMOVAL231
INSTALLATION234
INJECTION NOZZLES235
REMOVAL235
INSTALLATION236
THERMOSTAT237
REMOVAL237
INSTALLATION238
COOLING LIQUID PUMP239
REMOVAL239
INSTALLATION241
TURBOCHARGER242
REMOVAL242
INSTALLATION243
CYLINDER HEAD244
REMOVAL244
INSTALLATION246
ACCUMULATOR DISCONNECT SWITCH249
REMOVAL249
INSTALLATION249
FRONT COUNTERWEIGHT250
REMOVAL250
INSTALLATION250
RADIATOR OIL COOLER UNIT251
REMOVAL251
INSTALLATION253
CONDENSER254
REMOVAL254
INSTALLATION254
MUFFLER255
REMOVAL255
INSTALLATION255
EXHAUST PIPE256
REMOVAL256
INSTALLATION256
ENGINE HOOD257
REMOVAL257
INSTALLATION258
CAB259
REMOVAL259
INSTALLATION263
HEAT AND AIR CONDITIONING GROUP264
REMOVAL264
INSTALLATION265
FUEL TANK266
REMOVAL266
INSTALLATION267
HYDRAULIC OIL TANK268
REMOVAL268
INSTALLATION269
ENGINE-GEARBOX-PUMP GROUP270
REMOVAL270
INSTALLATION274
PISTON PUMP277
REMOVAL277
INSTALLATION278
TRANSMISSION279
REMOVAL279
INSTALLATION282
TRANSMISSION284
DISASSEMBLY CONVERTER284
ASSEMBLY CONVERTER285
DISASSEMBLY PLUGS AND FILTERS287
ASSEMBLY PLUGS AND FILTERS288
DISASSEMBLY OIL PUMP290
ASSEMBLY OIL PUMP291
DISASSEMBLY PIPES AND SENSORS293
ASSEMBLY PIPES AND SENSORS299
DISASSEMBLY HYDRAULIC CONTROL VALVE304
ASSEMBLY HYDRAULIC CONTROL VALVE306
DISASSEMBLY TRANSMISSION HOUSING308
ASSEMBLY TRANSMISSION HOUSING315
DISASSEMBLY SHAFT A323
ASSEMBLY SHAFT A332
DISASSEMBLY SHAFT B340
ASSEMBLY SHAFT B346
DISASSEMBLY SHAFT C351
ASSEMBLY SHAFT C360
DISASSEMBLY SHAFT E371
ASSEMBLY SHAFT E376
CONVERTER381
REMOVAL381
INSTALLATION382
HEADLIGHT CONTROL GROUP383
REMOVAL OF THE TRANSMISSION INDICA TOR AND HEADLIGHT DIMMER383
INSTALLATION OF THE TRANSMISSION INDICATOR AND HEADLIGHT DIMMER383
STEERING UNIT384
REMOVAL384
INSTALLATION384
WORKING BRAKE PUMP GROUP385
REMOVAL385
INSTALLATION385
FRONT WORK EQUIPMENT CONTROL VALVE386
REMOVAL386
INSTALLATION386
FRONT AXLE387
REMOVAL387
INSTALLATION388
FRONT AXLE389
DISASSEMBLY389
FRONT AXLE398
ASSEMBLY398
REAR AXLE414
REMOVAL414
INSTALLATION415
DISASSEMBLY416
ASSEMBLY430
PINION GROUP ASSEMBLY430
WORK EQUIPMENT449
FRONT BUCKET BOOM-RAISING CYLINDER449
REMOVAL449
INSTALLATION450
FRONT BUCKET TILT CYLINDERS451
REMOVAL451
INSTALLATION452
FRONT BUCKET453
REMOVAL453
INSTALLATION453
FRONT WORK EQUIPMENT454
REMOVAL454
INSTALLATION455
BACKHOE CONTROL VALVE456
REMOVAL456
INSTALLATION457
BACKHOE BOOM CYLINDER458
REMOVAL458
INSTALLATION459
BACKHOE ARM CYLINDER460
REMOVAL460
INSTALLATION460
TELESCOPIC ARM CYLINDER461
REMOVAL461
INSTALLATION461
BACKHOE BUCKET CYLINDER462
REMOVAL462
INSTALLATION463
OUTRIGGER CYLINDERS464
REMOVAL464
INSTALLATION464
BACKHOE SWING CYLINDERS465
REMOVAL465
INSTALLATION465
CYLINDERS467
DISASSEMBLY467
ASSEMBLY469
BOOM SWING CYLINDER473
DISASSEMBLY473
ASSEMBLY474
BOOM SAFETY CYLINDER476
REMOVAL476
INSTALLATION477
BACKHOE WORKING EQUIPMENT478
INSTALLATION479
BACKHOE BUCKET479
REMOVAL479
INSTALLATION479
BACKHOE ARM480
REMOVAL480
INSTALLATION480
TELESCOPIC ARM, COMPLETE481
REMOVAL481
INSTALLATION481
2nd ARM482
REMOVAL482
INSTALLATION482
2nd ARM GUIDES483
REMOVAL483
INSTALLATION483
BACKHOE BOOM484
REMOVAL484
INSTALLATION484
BACKHOE SWING BRACKET485
REMOVAL485
INSTALLATION485
BACKHOE OUTRIGGERS486
REMOVAL486
INSTALLATION487

IMAGES PREVIEW OF THE MANUAL:

S.M 15/12/24