Komatsu WB93R-5E0 Backhoe Loader Shop Manual WENBM00111 PDF

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Komatsu WB93R-5E0 Backhoe Loader Shop Manual WENBM00111 – PDF DOWNLOAD

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Komatsu WB93R-5E0 Backhoe Loader Shop Manual WENBM00111 – PDF DOWNLOAD 

Language : English
Pages : 498
Downloadable : Yes
File Type : PDF

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DESCRIPTION:

Komatsu WB93R-5E0 Backhoe Loader Shop Manual WENBM00111 – PDF DOWNLOAD 

SERIAL NUMBER
WB93R-5EO f70001 and up

FOREWORD:
This shop manual has been prepared as an aid to improve the quality of repairs by giving the operator 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.
The manual is divided into chapters on each main group of components; these chapters are further divided into the
following sections.
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.
TESTING AND ADJUSTMENTS
This sections 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» to «Causes» are also included in this section.
REMOVAL AND INSTALLATION
This section explains the order to be followed when removing, installing, disassembling or assembling each
component, as well as precautions to be taken for these operations.
STANDARD MAINTENANCE
This section gives the judgement standards when inspecting disassembled parts.

TABLE OF CONTENTS:

Komatsu WB93R-5E0 Backhoe Loader Shop Manual WENBM00111 – PDF DOWNLOAD 

SERIAL NUMBER
WB93R-5EO f70001 and up

00 INTRODUCTION 3
CONTENTS 3
k SAFETY 5
FOREWORD 7
HOW TO READ THE SHOP MANUAL 8
HOISTING INSTRUCTIONS 9
STANDARD TIGHTENING TORQUE 10
COATING MATERIALS 12
ELECTRIC 13
WEIGHT TABLE 14
TABLE OF OIL AND COOLANT QUANTITIES 15
CONVERSION TABLE 17
10 STRUCTURE AND FUNCTION 25
POWER TRAIN 26
TRANSMISSION (4WD) 28
TRANSMISSION 30
DRIVE SHAFTS 33
CONTROL VALVE BLOCK 35
FRONT AXLE 36
REAR AXLE 39
HYDRAULIC PUMP 43
1 MAIN PUMP 44
2 DELIVERY CONTROL VALVE 49
9-SPOOL CONTROL VALVE 57
11-SPOOL CONTROL VALVE 65
CLSS 73
STEERING UNIT 92
PPC VALVES 94
SHOVEL PPC VALVE (STANDARD) 94
OUTRIGGERS PPC VALVE 104
SOLENOID VALVE GROUP (EV1) 109
OUTRIGGERS SAFETY VALVE 111
SHOVEL CYLINDERS 112
RAISING CYLINDER 112
BACKHOE CYLINDERS 114
BOOM CYLINDER 114
BUCKET CYLINDER 115
AIR-CONDITIONING UNIT 118
OPERATION OF THE AIR CONDITIONING UNIT 119
20 TESTING AND ADJUSTMENTS 121
NORMAL OR STANDARD TECHNICAL DATA 122
SPECIAL TOOLS 137
VALVE CLEARANCE ADJUSTING 138
ENGINE SPEED TESTS 139
TENSIONING THE AIR-CONDITIONING COMPRESSOR BELT 140
BLEEDING AIR FROM CIRCUITS – ELIMINATING RESIDUAL PRESSURE 141
ADJUSTING ACCELERATOR PEDAL TRAVEL AND ACCELERATOR LEVER 143
CHECKING AND ADJUSTING THE BRAKE PEDAL STROKE 145
BRAKING SYSTEM CHECKS 146
PARKING BRAKE ADJUSTMENT 148
CHECKING AND SETTING PRESSURE IN THE ATTACHMENTS HYDRAULIC CIRCUIT 149
CHECKING THE SETTING OF MAIN RELIEF AND SECONDARY VALVES 151
SETTING THE MAIN RELIEF VALVES AND THE REDUCING VALVES 154
CHECKING AND ADJUSTING THE LS DIFFERENTIAL PRESSURE – ADJUSTING THE LS VALVE 156
CHECKING AND ADJUSTING SERVOCONTROLS SUPPLY PRESSURE 157
ADJUSTING THE PC VALVE 158
TESTING AND SETTING STEERING CONTROL SYSTEM PRESSURE 159
CHECKING FOR LEAKS IN THE STEERING CYLINDERS 160
TESTING PRESSURES IN THE POWER TRAIN GROUP 161
TESTING THE CORRECT FUNCTIONING OF THE POWER TRAINCLUTCHES 163
JIG ARM CLEARANCE ADJUSTMENT 164
ANALYSIS OF CAUSES HYDRAULIC DRIFT 166
FRONT EQUIPMENT 166
BACKHOE 167
TESTING THE AIR-CONDITIONING UNIT 171
EMPTYING THE AIR-CONDITIONING UNIT 173
TROUBLESHOOTING 174
FRONT AXLE TROUBLESHOOTING 174
FRONT AXLE CHECKING AND TROUBLESHOOTING 177
REAR AXLE TROUBLESHOOTING 179
REAR AXLE CHECKING AND TROUBLESHOOTING 182
TRANSMISSION TROUBLESHOOTING 184
30 REMOVAL AND INSTALLATION 187
HOW TO READ THE MANUAL 188
PRECAUTIONS TO BE TAKEN WHILE WORKING 189
SPECIAL TOOLS 190
ENGINE HOOD 194
Removal 194
Installation 194
FRONT GUARD 195
Removal 195
Installation 195
RADIATOR GROUP – INTERCOOLER 196
Removal 196
Installation 198
INTERCOOLER 199
Removal 199
Installation 200
CONDENSER 201
Removal 201
Installation 201
EXHAUST PIPE 202
Removal 202
Installation 202
MUFFLER 203
Removal 203
Installation 203
AIR FILTER 204
Removal 204
Installation 204
ENGINE BELT 205
Replacement 205
TURBOCHARGER 206
Removal 206
Installation 206
AIR-CONDITIONING UNIT COMPRESSOR 207
Removal 207
Installation 208
AIR-CONDITIONING UNIT COMPRESSOR BELT 209
Removal 209
Installation 209
FAN AND HEATING GROUP 210
Removal 210
Installation 213
BATTERY 214
Removal 214
Installation 214
FUEL TANK 215
Removal 215
Installation 215
STEERING WHEEL AND TRANSMISSION-REVERSE, DIRECTION INDICATOR AND HEADLIGHT DIPPER BEAM CONTROL GROUP 216
Removal 216
Installation 217
WORKING BRAKE PUMP GROUP 218
Removal 218
Installation 220
STEERING UNIT 221
Removal 221
Installation 222
CAB 223
Removal 223
Installation 228
HYDRAULIC OIL TANK 229
Removal 229
Installation 233
PISTON PUMP 234
Removal 234
Installation 235
TRANSMISSION 236
Removal 236
Installation 239
CONVERTOR 315
Removal 315
Installation 315
ENGINE 316
Removal 316
Installation 318
CONTROL VALVE 319
Removal 319
Installation 321
FRONT AXLE 322
Removal 322
Installation 323
REAR AXLE 354
Removal 354
Installation 355
SHOVEL PPC VALVE 395
Removal 395
Installation 396
SHOVEL LIFT CYLINDERS 397
Removal 397
Installation 398
SHOVEL DUMP CYLINDERS 399
Removal 399
Installation 400
SHOVEL 401
Removal 401
Installation 401
FRONT WORKING EQUIPMENT 402
Removal 402
Installation 403
SOLENOID VALVE GROUP 404
Removal 404
Installation 404
BACKHOE BOOM CYLINDER 405
Removal 405
Installation 406
ARM CYLINDER 407
Removal 407
Installation 408
JIG ARM CYLINDER 409
Removal 409
Installation 409
OUTRIGGER CYLINDER 410
Removal 410
Installation 411
OUTRIGGER ARMS 412
Removal 412
Installation 412
BACKHOE SWING CYLINDERS 413
Removal 413
Installation 414
BACKHOE BUCKET CYLINDER 415
Removal 415
Installation 416
BACKHOE BOOM SAFETY CYLINDER 417
Removal 417
Installation 417
CYLINDER 418
SHOVEL ARM, SHOVEL, BOOM, ARM, BUCKET, OUTRIGGERS, JIG ARM 418
BACKHOE SWING CYLINDERS 422
BACKHOE WORKING EQUIPMENT 426
Removal 426
Installation 427
BACKHOE BUCKET 428
Removal 428
Installation 428
BACKHOE BOOM 429
Removal 429
Installation 429
ARM 430
Removal 430
Installation 431
JIG ARM 432
Removal 432
Installation 432
2nd ARM 433
Removal 433
Installation 433
2nd ARM GUIDES 434
Removal 434
Installation 434
BACKHOE SWING BRACKET 435
Removal 435
Installation 435
40 STANDARD MAINTENANCE 437
EXPLANATION OF TERMS FOR MAINTENANCE STANDARD 438
Standard size and tolerance 438
Standard clearance and standard value 439
Standard interference 439
Repair limit and allowable value or allowable dimension 439
Clearance limit 439
Interference limit 439
TRANSMISSION 440
FRONT AXLE 445
REAR AXLE 449
HYDRAULIC PUMP 455
9-SPOOL CONTROL VALVE 457
11-SPOOL CONTROL VALVE 465
PPC VALVES 474
SHOVEL CONTROL 474
SHOVEL CYLINDERS 476
DUMP CYLINDER 476
LIFTING CYLINDER 476
4 IN 1 BUCKET 477
BACKHOE CYLINDERS 478
BOOM 478
ARM 478
BUCKET 478
BOOM SWING 479
OUTRIGGERS 480
JIG ARM 480
FRONT WORKING EQUIPMENT 481
SWING BRACKET 483
BACKHOE WORKING EQUIPMENT 485
90 DIAGRAMS AND DRAWINGS 487
HYDRAULIC CIRCUIT DIAGRAM 489
ELECTRICAL CIRCUIT DIAGRAM (1/3) 491
ELECTRICAL CIRCUIT DIAGRAM (2/3) 493
ELECTRICAL CIRCUIT DIAGRAM (3/3) 495

S.V 12/12/24