Komatsu WB93R-8R Backhoe Loader Service Manual WENBM00170 PDF

Description

Komatsu WB93R-8R Backhoe Loader Shop Manual WENBM00170 – PDF DOWNLOAD

FILE DETAILS:

Komatsu WB93R-8R Backhoe Loader Shop Manual WENBM00170 – PDF DOWNLOAD 

Language : English
Pages : 832
Downloadable : Yes
File Type : PDF

IMAGES PREVIEW OF THE MANUAL:

DESCRIPTION:

Komatsu WB93R-8R Backhoe Loader Shop Manual WENBM00170 – PDF DOWNLOAD 

SERIAL NUMBERS WB93R-8 F80004 and up

HOW TO READ THE SHOP MANUAL
Composition of shop manual
• This shop manual describes the technical information required for the services performed in a workshop.
The shop manual is divided into the following chapters for the convenience of use.
00. Index and foreword
• This section includes the index, foreword, safety and basic information.
01. Specification
• This section explains the specifications of the machine.
10. Structure and function
• This section explains the structure and function of the machine. The section of “Structure and function”
serves not only to give an understanding for the structure of each component, but also serves as reference
material for troubleshooting.
20. Standard value table
• The standard values for a new machine and trouble shooting are indicated. This standard value table is
used for testing and adjusting, and determining a failure at troubleshooting.
30. Testing and adjusting
• This section describes the measuring tools and how to measure, and how to adjust various parts. As for the
standard value and failure criterion, see the standard value table.
40. Troubleshooting
• This section describes the troubleshooting in a suspected area when a failure occurs and the remedy for
the failure. Troubleshooting is described by each failure mode.
50. Disassembly and assembly
• This section explains the procedures for removing, installing, disassembling, and assembling each part or
component and the special tools for the works as well as precautions for doing them safely. In addition,
tightening torque, and quantity and weight of coating material, oil, grease, and coolant required for the
works are also explained.
60. Maintenance standard
• This section describes the maintenance standard values for each component. This section gives the criterion
values for each component and required remedy at disassembly or maintenance.
80. Appendix
• The structure and function, testing and adjusting, and troubleshooting for all of the other components or
equipment which can not be separately classified are explained together in the appendix.
90. Diagrams and drawings
• This section gives hydraulic circuit diagrams and electrical circuit diagrams.

TABLE OF CONTENTS:

Komatsu WB93R-8R Backhoe Loader Shop Manual WENBM00170 – PDF DOWNLOAD 

SERIAL NUMBERS WB93R-8 F80004 and up

00 INDEX AND FOREWORD 3
TABLE OF CONTENTS 4
FOREWORD, SAFETY AND GENERAL INFORMATION 10
IMPORTANT SAFETY NOTICE 10
FIRE PREVENTION 15
DISPOSE OF WASTE MATERIALS 16
HOW TO READ THE SHOP MANUAL 17
EXPLANATION OF TERMS FOR MAINTENANCE STANDARD 19
HANDLING EQUIPMENT OF FUEL SYSTEM DEVICES 21
HANDLING OF INTAKE SYSTEM PARTS 22
HANDLING OF HYDRAULIC EQUIPMENT 23
METHOD OF DISCONNECTING AND CONNECTING OF PUSH-PULL TYPE COUPLER 25
HANDLING OF ELECTRICAL EQUIPMENT 28
HOW TO READ ELECTRIC WIRE CODE 36
PRECAUTIONS WHEN PERFORMING OPERATION 39
PRACTICAL USE OF KOMTRAX 44
STANDARD TIGHTENING TORQUE TABLE 45
ABBREVIATION 51
CONVERSION TABLE 58
01 SPECIFICATION 65
CONTENTS 66
SPECIFICATIONS 67
OVERALL DIMENSIONS 67
WORKING RANGE DRAWINGS 68
SPECIFICATIONS 70
WEIGHT TABLE 75
TABLE OF FUEL, COOLANT, AND LUBRICANTS 77
10 STRUCTURE AND FUNCTION 79
CONTENTS 80
ABBREVIATION LIST 81
UREA SCR SYSTEM 88
LAYOUT DRAWING OF UREA SCR SYSTEM 88
INDUCEMENT STRATEGY 95
COMPONENT PARTS OF UREA SCR SYSTEM 102
DEF TANK 106
DEF PUMP 108
DEF INJECTOR 109
DEF HOSE 110
DEF TANK HEATING VALVE 111
POWER TRAIN 112
POWER TRAIN DESCRIPTION 112
UNDERCARRIAGE AND FRAME 115
4WD TRANSMISION 115
FRONT AXLE 125
REAR AXLE 129
HYDRAULIC SYSTEM 134
LAYOUT DRAWING OF HYDRAULIC SYSTEM 134
HYDRAULIC TANK 136
HYDRAULIC PUMP 137
CONTROL VALVE – 9-spool loader and backhoe valves 151
CONTROL VALVE – 11-spool loader and backhoe valves 162
CLSS 173
WORK EQUIPMENT SYSTEM 193
LAYOUT DRAWING OF WORK EQUIPMENT SYSTEM 193
LOADER WORK EQUIPMENT PPC VALVE 196
OUTRIGGER PPC VALVE 209
STEERING UNIT 214
BRAKE PUMP 215
SOLENOID VALVE 216
ACCUMULATOR 218
HOLDING VALVE 219
WORK EQUIPMENT 224
LOADER WORK EQUIPMENT 224
BACKHOE WORK EQUIPMENT 225
20 STANDARD VALUE TABLES 229
CONTENTS 230
ABBREVIATION LIST 231
STANDARD SERVICE VALUE TABLE 238
STANDARD VALUE TABLE FOR ENGINE 238
STANDARD VALUE TABLE FOR MACHINE 243
30 TESTING AND ADJUSTING 263
CONTENTS 264
ABBREVIATION LIST 265
ENGINE AND COOLING SYSTEM 272
TEST ENGINE SPEED 272
TEST EXHAUST GAS COLOR 275
UNDERCARRIAGE AND FRAME 277
CHECKING LEAKAGES IN THE STEERING CYLINDER 277
TESTING STEERING CIRCUIT OIL PRESSURE 278
TESTING THE BRAKING SYSTEM PRESSURE 279
TESTING THE BRAKE SYSTEM LEAKAGE 281
BLEEDING AIR FROM THE BRAKE LINES 282
TESTING AND ADJUSTING THE PARKING BRAKE SYSTEM 283
HYDRAULIC SYSTEM 285
RELEASING REMAINING PRESSURE FROM HYDRAULIC CIRCUIT 285
CHECKING AND REGULATING PRESSURE IN THE HYDRAULIC CIRCUITS 286
TESTING AND ADJUSTING OIL PRESSURE IN WORK EQUIPMENT CIRCUITS 288
TESTING OIL PRESSURE OF CONTROL CIRCUIT 294
INSPECTION AND ADJUSTMENT OF PUMP PC CONTROL OIL PRESSURE 296
TESTING AND ADJUSTING OIL PRESSURE IN PUMP LS CONTROL CIRCUIT 300
TESTING OUTLET PRESSURE OF SOLENOID VALVE 302
TESTING PPC VALVE OUTLET PRESSURE 304
ADJUSTING PLAY OF WORK EQUIPMENT PPC VALVES 306
TESTING TRANSMISSION OIL PRESSURE CIRCUIT 307
ISOLATING THE PARTS CAUSING HYDRAULIC DRIFT IN WORK EQUIPMENT 309
BLEEDING AIR FROM HYDRAULIC CIRCUIT 312
CHECK OF OIL LEVEL AND OPERATION 313
ELECTRICAL SYSTEM 315
SET AND ADJUST EACH EQUIPMENT 315
SET AND OPERATE MACHINE MONITOR 316
METHOD FOR STARTING UP KOMTRAX TERMINAL 343
ADJUST FRONT PANEL SETTINGS 351
HANDLING BATTERY DISCONNECT SWITCH 353
TESTING DIODES 354
WORK EQUIPMENT 356
RETURN TO DIG SENSOR ADJUSTMENT 356
TELESCOPIC ARM GUIDE SLACK ADJUSTMENT 357
40 TROUBLESHOOTING 361
CONTENTS 362
ABBREVIATION LIST 372
RELATED INFORMATION ON TROUBLESHOOTING 379
GENERAL TROUBLESHOOTING POINTS 379
TROUBLESHOOTING POINTS FOR UREA SCR SYSTEM 380
CHECKS BEFORE TROUBLESHOOTING 381
INSPECTION PROCEDURE BEFORE TROUBLESHOOTING 383
WALK-AROUND CHECK 383
TESTING IN ACCORDANCE WITH TESTING PROCEDURE 385
CHECK OF FUEL LEVEL AND TYPE 385
METHOD FOR CHECKING WATER SEPARATOR, DRAINING WATER AND SEDIMENT 386
METHOD FOR REPLACING FUEL PREFILTER CARTRIDGE 388
METHOD FOR REPLACING FUEL MAIN FILTER CARTRIDGE 390
METHOD FOR BLEEDING AIR FROM FUEL CIRCUIT 391
METHOD FOR CHECKING DEF LEVEL AND TYPE 392
METHOD FOR ADDING DEF 393
METHOD FOR CHECKING OIL LEVEL IN ENGINE OIL PAN, ADDING OIL 396
METHOD FOR CHECKING COOLANT LEVEL, ADDING COOLANT 398
METHOD FOR CHECKING AIR CLEANER 399
METHOD FOR CLEANING AIR CLEANER OUTER ELEMENT 400
METHOD FOR CHANGING AIR CLEANER ELEMENT 403
CHECK AND REPLACE VACUATOR VALVE 404
METHOD FOR CHECKING OIL LEVEL IN HYDRAULIC TANK, ADDING OIL 404
METHOD FOR CHANGING OIL IN HYDRAULIC TANK, CLEANING HYDRAULIC TANK STRAINER 405
BLEED AIR FROM HYDRAULIC SYSTEM 407
METHOD FOR REPLACING HYDRAULIC OIL FILTER ELEMENT 408
METHOD FOR CHECKING THE OIL LEVELS IN THE TRANSMISSION 410
METHOD FOR CHECKING THE FRONT AXLE OIL LEVEL 411
METHOD FOR CHECKING THE REAR AXLE OIL LEVEL 412
FAILURE CODES TABLE 412
TROUBLESHOOTING BY FAILURE CODE (DISPLAY OF CODE) 431
TROUBLESHOOTING OF ENGINE FAILURE 431
50 DISASSEMBLY AND ASSEMBLY 571
CONTENTS 572
ABBREVIATION LIST 574
RELATED INFORMATION ON DISASSEMBLY AND ASSEMBLY 581
HOW TO READ THIS MANUAL 581
COATING MATERIALS LIST 583
Sketches of special tools 587
ENGINE AND COOLING SYSTEM 589
REMOVE AND INSTALL RADIATOR ASSEMBLY 589
REMOVAL AND INSTALL OF FAN CLUTCH ASSEMBLY 595
REMOVE AND INSTALL ENGINE 600
REMOVE AND INSTALL FUEL COOLER ASSEMBLY 610
REMOVE AND INSTALL EXHAUST PIPE 611
REMOVAL AND INSTALL BELLOWS PIPE ASSEMBLY 612
REMOVAL AND INSTALL KDOC ASSEMBLY 616
REMOVE AND INSTALL DEF TANK SENSOR FLANGE ASSEMBLY 622
REMOVE AND INSTALL DEF TANK SENSOR 629
REMOVE AND INSTALL DEF TANK STRAINER 631
REMOVE AND INSTALL DEF INJECTOR 632
REMOVE AND INSTALL AIR CLEANER ASSEMBLY 639
REMOVE AND INSTALL AIR CONDITIONER CONDENSER ASSEMBLY 640
REMOVE AND INSTALL AIR CONDITIONER BELT 642
REMOVE AND INSTALL AIR CONDITIONER COMPRESSOR 644
UNDERCARRIAGE AND FRAME 647
REMOVE AND INSTALL ENGINE HOOD 647
REMOVE AND INSTALL COUNTERWEIGHT 649
REMOVAL AND INSTALL FRONT AXLE 651
REMOVAL AND INSTALL REAR AXLE 654
REMOVAL AND INSTALL TRANSMISSION 657
HYDRAULIC SYSTEM 665
REMOVAL AND INSTALL HYDRAULIC PUMP ASSEMBLY 665
DISASSEMBLY AND ASSEMBLY OF WORK EQUIPMENT PPC VALVE ASSEMBLY 669
WORK EQUIPMENT 671
REMOVAL AND INSTALL LOADER WORK EQUIPMENT ASSEMBLY 671
REMOVAL AND INSTALL BACKHOE WORK EQUIPMENT ASSEMBLY 675
REMOVAL AND INSTALL BACKHOE BOOM CYLINDER 679
REMOVAL AND INSTALL BACKHOE ARM CYLINDER 682
REMOVAL AND INSTALL BACKHOE TELESCOPIC ARM CYLINDER 685
REMOVAL AND INSTALL OUTRIGGER CYLINDER 687
REMOVAL AND INSTALL BACKHOE BOOM SWING CYLINDERS 689
REMOVAL AND INSTALL BACKHOE BUCKET CYLINDER 692
REMOVAL AND INSTALL BACKHOE BOOM LOCK CYLINDER 694
REMOVAL AND INSTALL BACKHOE BOOM 696
REMOVAL AND INSTALL BACKHOE ARM ASSEMBLY 698
REMOVAL AND INSTALL BACKHOE TELESCOPIC ARM ASSEMBLY 700
REMOVAL AND INSTALL BACKHOE BOOM SWING BRACKET 702
REMOVAL AND INSTALL BACKHOE SLIDING BRACKET 704
REMOVAL AND INSTALL BACKHOE SLIDING BRACKET LOCKING PISTON 707
CAB AND ITS ATTACHMENTS 709
REMOVAL AND INSTALL OPERATOR’S CAB ASSEMBLY 709
ELECTRICAL SYSTEM 718
REMOVE AND INSTALL ENGINE CONTROLLER ASSEMBLY 718
REMOVE AND INSTALL FRONT PANEL 720
REMOVAL AND INSTALL STEERING COLUMN SWITCHES 722
REMOVAL AND INSTALL KOMTRAX TERMINAL ASSEMBLY 724
60 MAINTENANCE STANDARD 727
CONTENTS 728
ABBREVIATION LIST 729
ENGINE AND COOLING SYSTEM 736
ENGINE MOUNT 736
COOLING SYSTEM 738
UNDERCARRIAGE AND FRAME 739
TRANSMISSION 739
FRONT AXLE 742
REAR AXLE 747
HYDRAULIC SYSTEM 751
9-SPOOL CONTROL VALVE 751
11-SPOOL CONTROL VALVE 759
HYDRAULIC PUMP 767
PPC VALVE 769
WORK EQUIPMENT 775
FRONT WORKING EQUIPMENT 775
BACKHOE WORKING EQUIPMENT 779
WORK EQUIPMENT CYLINDER 781
90 DIAGRAMS AND DRAWINGS 791
CONTENTS 792
ABBREVIATION LIST 793
HYDRAULIC CIRCUIT DIAGRAM 800
SYMBOLS IN HYDRAULIC CIRCUIT DIAGRAM 800
HYDRAULIC CIRCUIT DIAGRAM 803
ELECTRIC CIRCUIT DIAGRAM 805
SYMBOLS IN ELECTRIC CIRCUIT DIAGRAM 805
ELECTRICAL CIRCUIT DIAGRAM (1/12) 809
ELECTRICAL CIRCUIT DIAGRAM (2/12) 811
ELECTRICAL CIRCUIT DIAGRAM (3/12) 813
ELECTRICAL CIRCUIT DIAGRAM (4/12) 815
ELECTRICAL CIRCUIT DIAGRAM (5/12) 817
ELECTRICAL CIRCUIT DIAGRAM (6/12) 819
ELECTRICAL CIRCUIT DIAGRAM (7/12) 821
ELECTRICAL CIRCUIT DIAGRAM (8/12) 823
ELECTRICAL CIRCUIT DIAGRAM (9/12) 825
ELECTRICAL CIRCUIT DIAGRAM (10/12) 827
ELECTRICAL CIRCUIT DIAGRAM (11/12) 829
ELECTRICAL CIRCUIT DIAGRAM (12/12) 831

S.V 12/12/24