Komatsu Wheeled Excavator PW75R-2 Shop Manual WEBM001601 – PDF DOWNLOAD

Description

Komatsu Wheeled Excavator PW75R-2 Shop Manual WEBM001601 – PDF DOWNLOAD

FILE DETAILS:

Komatsu Wheeled Excavator PW75R-2 Shop Manual WEBM001601 – PDF DOWNLOAD

Language : English
Pages :472
Downloadable : Yes
File Type : PDF

DESCRIPTION:

Komatsu Wheeled Excavator PW75R-2 Shop Manual WEBM001601 – PDF DOWNLOAD

SERIAL NUMBER
PW75R·2 22E0200243 and up

FOREWORD

• This shop manual has been prepared as an aid to improve the quality of repairs by giving the operator an ac- curate 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 understan- ding of the structure, but also serves as reference material for troubleshooting.
TESTING AND ADJUSTING
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.
DISASSEMBLY AND ASSEMBLY
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.
MAINTENANCE STANDARD
This section gives the judgement standards when inspecting disassembled parts.

TABLE OF CONTENTS:

Komatsu Wheeled Excavator PW75R-2 Shop Manual WEBM001601 – PDF DOWNLOAD

SERIAL NUMBER
PW75R·2 22E0200243 and up

COVER 1
CONTENTS 3
LIST OF REVISED PAGES 5
SAFETY 7
FOREWORD 9
HOW TO READ THE SHOP MANUAL 10
HOISTING INSTRUCTIONS 11
STANDARD TIGHTENING TORQUE 12
COATING MATERIALS 14
ELECTRIC WIRE CODE 15
WEIGHT TABLE 16
TABLE OF OIL AND COOLANT QUANTITIES 17
10STRUCTURE AND FUNCTION 21
PTO 22
POWER TRAIN 23
FRONT AXLE 24
TRANSMISSION (2WS) 28
REAR AXLE 30
STEERING SYSTEM (2WS) 34
TRANSMISSION (4WS) 36
REAR AXLE (4WS) 38
STEERING SYSTEM (4WS) 43
STEERING UNIT 47
SWING CIRCLE 48
SWING MACHINERY 49
HYDRAULIC CIRCUIT (2WS) 51
HYDRAULIC CIRCUIT (4WS) 53
HYDRAULIC CIRCUIT (LOWER EQUIPMENT) 55
HYDRAULIC PUMP 56
MAIN HYDRAULIC PUMP 57
PC VALVE, LS VALVE, SERVO PISTON 62
LS VALVE 63
PC VALVE (POWER CONTROL) 73
PRIORITY VALVE 82
CONTROL VALVE 84
SWING MOTOR112
SWIVEL JOINT116
TRAVEL MOTOR117
DISPLACEMENT AUTOMATIC CONTROL HIGH PRESSURE RELATED118
TRAVEL MOTOR BRAKE VALVES119
CYLINDERS120
SERVOCONTROL FEED UNIT124
ACCUMULATORS129
PPC VALVE130
PPC VALVE (BLADE, BOOM SWING, 2-PIECE BOOM)134
TRAVEL PPC VALVE137
BRAKE PUMP138
BOOM AND ARM SAFETY VALVE139
2-PIECE BOOM SAFETY VALVE140
BLADE OR OUTRIGGER SAFETY VALVE141
OVER LOAD SENSOR SWITCH142
SOLENOID VALVE GROUP ST1 (Y5-Y6-Y7-Y11)143
SOLENOID VALVE GROUP ST2 (Y4-Y10-Y12)144
SOLENOID VALVE GROUP ST3 (Y1-Y2)145
SOLENOID VALVE GROUP OP1 (Y21-Y22-Y23-Y24)146
SOLENOID VALVE GROUP OP2 (Y26)147
SOLENOID VALVE GROUP OP3 (Y8-Y9)148
ELECTRICAL DIAGRAM (2WS) (1/5)149
ELECTRICAL DIAGRAM (2WS) (2/5)151
ELECTRICAL DIAGRAM (2WS) (3/5)153
ELECTRICAL DIAGRAM (2WS) (4/5)155
ELECTRICAL DIAGRAM (2WS) (5/5)157
ELECTRICAL DIAGRAM (4WS) (1/5)159
ELECTRICAL DIAGRAM (4WS) (2/5)161
ELECTRICAL DIAGRAM (4WS) (3/5)163
ELECTRICAL DIAGRAM (4WS) (4/5)165
ELECTRICAL DIAGRAM (4WS) (5/5)167
20TESTING AND ADJUSTMENTS171
NORMAL OR STANDARD TECHNICAL DATA172
SPECIAL TOOLS189
MEASURING THE ENGINE SPEED191
ADJUSTING VALVE CLEARANCE192
MEASURING COMPRESSION PRESSURE193
TESTING AND ADJUSTING FUEL INJECTION TIMING194
TESTING AND ADJUSTING FAN BEL TENSION196
ADJUSTING THE STROKE OF THE ACCELERATOR LEVER197
ADJUSTING PPC VALVES CLEARANCE198
ADJUSTING THE SAFETY MICROSWITCH199
MEASURING THE SWING CIRCLE AXIAL CLEARANCE200
AIR BLEEDING FROM HYDRAULIC CIRCUITS201
RELEASING RESIDUAL PRESSURE204
CHECKING AND REGULATING PRESSURE IN THE HYDRAULIC CIRCUITS205
TESTING AND SETTING OF MAIN VALVES206
ADJUSTING PC VALVE208
MEASURING LS DIFFERENTIAL PRESSURE AND ADJUSTING LS VALVE209
CHECKING AND ADJUSTING PRESSURES IN THE SERVOCONTROL FEED UNIT211
MEASURING PUMPS DELIVERY AND FLOW CONTROL STARTING POINT PUMP P1212
CHECKING THAT THE PRIORITY VALVE IS FUNCTIONING CORRECTLY214
CHECKING AND REGULATING THE PRESSURE OF THE STEERING SYSTEM215
CHECKING LEAKAGES IN THE STEERING CYLINDERS216
CHECKING THE BRAKING SYSTEM217
CHECKING WEAR IN THE BRAKE DISKS222
ADJUSTING BRAKING DISKS CLEARANCE222
BLEEDING AIR FROM THE BRAKE LINES223
ADJUSTING THE PARKING BRAKE224
TRAVEL HYDRAULIC EQUIPMENT CHECKING PROCEDURE225
CHECKING AND ADJUSTING THE AUTOMATIC DISPLACEMENT CONTROL SYSTEM OF THE TRAVEL MOTOR226
CHECKING FOR LEAKAGES IN THE TRAVEL MOTOR227
CHECKING AND ADJUSTING THE SPEED OF THE TRAVEL PROPELLER SHAFT228
ADJUSTMENT OF THE SPEED SURVEYOR229
ADJUSTING BOOM AND ARM SAFETY VALVES230
ADJUSTING 2nd BOOM SAFETY VALVES231
MEASURING AND SETTING OF PRESSURE SWITCH SIGNAL OVERLOAD OPERATION232
MEASUREMENT OF INTERNAL OIL LEAKAGES IN THE SWING MOTOR233
CHECKING FOR LEAKAGES INSIDE THE SWIVEL JOINT234
ANALYSIS OF THE CAUSES OF HYDRAULIC DRIFTS237
30DISASSEMBLY AND ASSEMBLY249
HOW TO READ THE MANUAL251
PRECAUTIONS TO BE TAKEN WHEN WORKING252
SPECIAL TOOLS253
STARTER MOTOR257
ALTERNATOR258
INJECTION PUMP259
NOZZLE HOLDER263
CYLINDER HEAD264
SEAT267
CABIN268
ENGINE HOOD269
FRONT HOOD270
HEATING FAN271
RADIATOR272
FUEL TANK274
HYDRAULIC OIL TANK276
ENGINE-PUMP GROUP277
PUMP GROUP281
ENGINE-PUMP COUPLING JOINT283
MAIN PUMP INPUT SHAFT OIL SEAL284
GEAR-PUMP285
SWIVEL JOINT286
SWING MOTOR287
SWING GEARED MOTOR288
SWING MACHINERY ASSEMBLY289
CONTROL VALVE295
REVOLVING FRAME296
COUNTERWEIGHT298
SWING CIRCLE299
TRANSMISSION – REVERSER, DIRECTION INDICATOR AND HEADLIGHT DIPPER BEAM CONTROL GROUP300
RH PPC VALVE (BOOM – BUCKET)301
LH PPC VALVE (ARM-SWING)303
OUTRIGGER AND BLADE PPC VALVE305
BOOM SWING PPC VALVE306
TRAVEL AND 2nd BOOM PPC VALVE307
BRAKE PUMP308
STEERING UNIT309
PRIORITY VALVE326
TRAVEL MOTOR328
TRANSMISSION338
AXLE LOCKING CYLINDERS353
COMPLETE FRONT AXLE354
COMPLETE REAR AXLE357
AXLES360
BOOM CYLINDER (FOR 1-PIECE BOOM)390
BOOM CYLINDER (FOR 2-PIECE BOOM)391
2nd BOOM CYLINDERS393
ARM CYLINDER395
BUCKET CYLINDER396
BOOM SWING CYLINDER397
CYLINDERS FOR OUTRIGGERS OR BLADE398
WORK EQUIPMENT CYLINDERS399
WORK EQUIPMENT (FOR 1-PIECE BOOM)404
WORK EQUIPMENT (FOR 2-PIECE BOOM)405
BUCKET407
ARM408
2nd BOOM411
BOOM413
1st BOOM414
SWING BRACKET416
BLADE AND OUTRIGGERS417
BLADE AND OUTRIGGERS ARMS418
40MAINTENANCE STANDARD421
PTO422
FRONT AXLE423
TRANSMISSION (2WS)428
REAR AXLE (2WS)430
TRANSMISSION (4WS)434
REAR AXLE (4WS)436
SWING CIRCLE442
SWING MACHINERY443
HYDRAULIC PUMP444
CONTROL VALVE446
SWING MOTOR457
SWIVEL JOINT458
TRAVEL MOTOR459
TRAVEL MOTOR BRAKE VALVES461
SERVOCONTROL FEED UNIT462
TRAVEL PPC VALVE463
PPC VALVE464
BLADE SAFETY VALVE466
CYLINDERS467
WORK EQUIPMENT (1-PIECE BOOM)469
WORK EQUIPMENT (2-PIECE BOOM)471

IMAGES PREVIEW OF THE MANUAL:

S.M 16/12/24