Komatsu Backhoe-Loader WB93R Repair Service Manual
Complete service repair manual with Electrical Wiring Diagrams for Komatsu Backhoe-Loader WB93R, with all the technical information to maintain, diagnose, repair, and rebuild like professional mechanics.
Komatsu Backhoe-Loader WB93R workshop service repair manual includes:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.
WEBM005800 - Backhoe-Loader WB93R-5 Shop Manual.pdf
WEPB007501 - Backhoe-Loader WB93R-5 Parts Manual.pdf
WETT001304 - Backhoe-Loader WB93R-5, WB97R-5 Basic Technical Training.pdf
PRODUCT DETAILS:
Total Pages: 1,216 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English
TABLE OF CONTENTS
WEBM005800 - Backhoe-Loader WB93R-5 Shop Manual....1
WEBM005800_WB93R-5....3
CONTENTS....3
REVISED PAGES....5
k SAFETY....7
FOREWORD....9
HOW TO READ THE SHOP MANUAL....10
HOISTING INSTRUCTIONS....11
STANDARD TIGHTENING TORQUE....12
COATING MATERIALS....14
ELECTRIC....15
WEIGHT TABLE....16
TABLE OF OIL AND COOLANT QUANTITIES....17
CONVERSION TABLE....19
10 STRUCTURE AND FUNCTION....27
POWER TRAIN....28
TRANSMISSION (4WD)....30
TRANSMISSION....32
DRIVE SHAFTS....35
CONTROL VALVE BLOCK....37
FRONT AXLE....38
REAR AXLE....41
HYDRAULIC CIRCUIT (WITH MECHANICAL CONTROL)....45
HYDRAULIC CIRCUIT (WITH SERVOCONTROL)....46
HYDRAULIC PUMP....47
8-SPOOL CONTROL VALVE (WITH MECHANICAL CONTROL)....62
10-SPOOL CONTROL VALVE (WITH MECHANICAL CONTROL)....68
8-SPOOL CONTROL VALVE (WITH SERVOCONTROL)....74
10-SPOOL CONTROL VALVE (WITH SERVOCONTROL)....80
CLSS....87
STEERING UNIT....108
PPC VALVES....109
PPC VALVE (SERVOCONTROL VERSION)....124
SOLENOID VALVE GROUP (EV1)....126
SAFETY VALVES....130
SHOVEL CYLINDERS....134
BACKHOE CYLINDERS....136
AIR-CONDITIONING UNIT....140
HOW THE AIR-CONDITIONING UNIT FUNCTIONS....141
FUSE AND RELAY CENTRE....143
DRIVER SEAT WIRING....144
SWITCH PANEL WIRING....145
FRONT DASH WIRING....146
ROOF WIRING....147
ENGINE WIRING....148
SPEED SELECTOR WIRING....149
BACKHOE WIRING....150
JIG ARM WIRING....151
WIRING DIAGRAM (STANDARD VERSION) (see also Group 90)....152
20 TESTING AND ADJUSTMENTS....153
NORMAL OR STANDARD TECHNICAL DATA....155
SPECIAL TOOLS....179
ADJUSTING VALVE CLEARANCE....181
ENGINE SPEED TESTS....182
TENSIONING THE AIR-CONDITIONING COMPRESSOR BELT....184
BLEEDING AIR FROM CIRCUITS - ELIMINATING RESIDUAL PRESSURE....185
ADJUSTING ACCELERATOR PEDAL TRAVEL AND ACCELERATOR LEVER....187
ADJUSTING BRAKE PEDAL....189
CHECKING AND SETTING PRESSURE IN THE ATTACHMENTS HYDRAULIC CIRCUIT....190
CHECKING THE SETTING OF MAIN RELIEF AND SECONDARY VALVES....192
SETTING THE MAIN RELIEF VALVES AND THE REDUCING VALVES....196
CHECKING AND ADJUSTING THE LS DIFFERENTIAL PRESSURE. ADJUSTING THE LS VALVE....198
CHECKING AND ADJUSTING SERVOCONTROLS SUPPLY PRESSURE....200
ADJUSTING THE PC VALVE....201
TESTING AND SETTING STEERING CONTROL SYSTEM PRESSURE....202
CHECKING FOR LEAKS IN THE STEERING CYLINDERS....203
TESTING PRESSURES IN THE POWER TRAIN GROUP....204
TESTING THE CORRECT FUNCTIONING OF THE POWER TRAINCLUTCHES....206
ANALYSIS OF CAUSES HYDRAULIC DRIFT....207
TESTING THE AIR-CONDITIONING UNIT....212
EMPTYING THE AIR-CONDITIONING UNIT....214
TROUBLESHOOTING....215
30 REMOVAL AND INSTALLATION....229
HOW TO READ THE MANUAL....231
PRECAUTIONS TO BE TAKEN WHILE WORKING....232
SPECIAL TOOLS....233
ENGINE HOOD....237
Removal....237
Installation....238
FRONT GUARD....239
Removal....239
Installation....239
RADIATOR GROUP....240
Removal....240
Installation....243
CONDENSER (For machines equipped with an air-conditioning unit)....244
Removal....244
Installation....244
MUFFLER....245
Removal....245
Installation....245
AIR FILTER....246
Removal....246
Installation....246
TURBOCHARGER....247
Removal....247
Installation....248
AIR-CONDITIONING UNIT COMPRESSOR....249
Removal....249
Installation....250
AIR-CONDITIONING UNIT COMPRESSOR BELT....251
Removal....251
Installation....252
EXHAUST PIPE....253
Removal....253
Installation....253
FAN AND HEATING GROUP....254
Removal....254
Installation....259
BATTERY....260
Removal....260
Installation....261
FUEL TANK....262
Removal....262
Installation....263
STEERING WHEEL AND TRANSMISSION-REVERSE, DIRECTION INDICATOR AND HEADLIGHT DIPPER BEAM CONTROL GROUP....264
Removal....264
Installation....265
WORKING BRAKE PUMP GROUP....266
Removal....266
Installation....268
STEERING UNIT....269
Removal....269
Installation....270
CAB....271
Removal....271
Installation....278
HYDRAULIC OIL TANK....279
Removal....279
Installation....285
PISTON PUMP....286
Removal....286
Installation....287
TRANSMISSION....288
Removal....288
Installation....292
TRANSMISSION....293
Disassembly and assembly....293
CONVERTOR....397
Removal....397
Installation....397
ENGINE....398
Removal....398
Installation....402
CONTROL VALVE (Standard version)....403
Removal....403
Installation....406
CONTROL VALVE (version with servocontrol)....407
Removal....407
Installation....409
FRONT AXLE....410
Removal....410
Installation....412
Disassembly and assembly....413
REAR AXLE....446
Removal....446
Installation....448
Disassembly and assembly....449
SHOVEL PPC VALVE....499
Removal....499
Installation....500
SHOVEL LIFT CYLINDERS....501
Removal....501
Installation....502
SHOVEL DUMP CYLINDERS....503
Removal....503
Installation....504
SHOVEL....505
Removal....505
Installation....505
FRONT WORKING EQUIPMENT....506
Removal....506
Installation....507
BACKHOE PPC VALVES (Optional)....508
Removal....508
Installation....509
PPC VALVE SUPPORT RELEASE CABLES....510
Removal....510
Installation and adjusting....512
PPC VALVE SUPPORT RETURN GAS SPRING....513
Removal....513
Installation....514
SOLENOID VALVE GROUP (servocontrol and optional attachment)....515
Removal....515
Installation....516
BACKHOE BOOM CYLINDER....517
Removal....517
Installation....519
ARM CYLINDER....520
Removal....520
Installation....521
JIG ARM CYLINDER....522
Removal....522
Installation....522
OUTRIGGER CYLINDER....523
Removal....523
Installation....524
BACKHOE SWING CYLINDERS....525
Removal....525
Installation....527
BACKHOE BUCKET CYLINDER....528
Removal....528
Installation....529
BACKHOE BOOM SAFETY CYLINDER....530
Removal....530
Installation....531
BACKHOE WORKING EQUIPMENT....532
Removal....532
Installation....533
BACKHOE BUCKET....534
Removal....534
Installation....534
BACKHOE BOOM CYLINDER....535
Removal....535
Installation....535
ARM....536
Removal....536
Installation....536
JIG ARM....537
Removal....537
Installation....537
2nd ARM....538
Removal....538
Installation....538
2nd ARM GUIDES....539
Removal....539
Installation....539
BACKHOE SWING BRACKET....540
Removal....540
Installation....540
COMPLETE BACKHOE BACKFRAME....541
Removal....541
Installation....542
BACKFRAME LOCK PISTONS....543
Removal....543
Installation....544
40 STANDARD MAINTENANCE....545
TRANSMISSION....546
FRONT AXLE....551
REAR AXLE....555
HYDRAULIC PUMP....559
CONTROL VALVE....562
PPC VALVES....594
SHOVEL CYLINDERS....596
BACKHOE CYLINDERS....598
FRONT WORKING EQUIPMENT....602
SWING BRACKET....604
BACKHOE WORKING EQUIPMENT....606
90 OTHER....609
ELECTRICAL DIAGRAM (STANDARD VERSION)....611
WEPB007501 - Backhoe-Loader WB93R-5 Parts Manual....615
WETT001304 - Backhoe-Loader WB93R-5, WB97R-5 Basic Technical Training....1041
001_Introduction.ppt....1041
002_Identification.ppt....1046
003_Cabin.ppt....1049
004_Specs & Test Values.ppt....1064
005_Power Train.ppt....1070
006_Engine.ppt....1072
007_Transmission.ppt....1096
008_Axles.ppt....1137
009_Hydraulic System.ppt....1157
010_Steering System.ppt....1177
011_Electric System.ppt....1182
012_Work Equipment.ppt....1228
013_Maintenance.ppt....1240
014_Safety.ppt....1250
Komatsu Backhoe-Loader WB93R Repair Service Manual
