Komatsu PC75R-2 HYDRAULIC EXCAVATOR Shop Manual WEBM001502 – PDF DOWNLOAD

Description

Komatsu PC75R-2 HYDRAULIC EXCAVATOR Shop Manual WEBM001502 – PDF DOWNLOAD

FILE DETAILS:

Komatsu PC75R-2 HYDRAULIC EXCAVATOR Shop Manual WEBM001502 – PDF DOWNLOAD

Language : English
Pages :362
Downloadable : Yes
File Type : PDF

DESCRIPTION:

Komatsu PC75R-2 HYDRAULIC EXCAVATOR Shop Manual WEBM001502 – PDF DOWNLOAD

SERIAL NUMBER
PC75R-2 22E5210001 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.
10. 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.
20. 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.
30. 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.
40. MAINTENANCE STANDARD
This section gives the judgement standards when inspecting disassembled parts.

TABLE OF CONTENTS:

Komatsu PC75R-2 HYDRAULIC EXCAVATOR Shop Manual WEBM001502 – PDF DOWNLOAD

SERIAL NUMBER
PC75R-2 22E5210001 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
CONVERSION TABLE 19
10STRUCTURE AND FUNCTION 27
PTO 28
POWER TRAIN 29
TRACK FRAME 31
IDLER AND RECOIL SPRING 32
CARRIER ROLLER – TRACK ROLLER 33
TRACK SHOE 34
SWING CIRCLE 35
SWING MACHINERY 36
HYDRAULIC DIAGRAM STANDARD 37
HYDRAULIC DIAGRAM WITH 2-PIECE BOOM 39
HYDRAULIC PUMP 40
MAIN PUMP 41
9-SPOOL CONTROL VALVE (STANDARD) 66
10-SPOOL CONTROL VALVE (STANDARD 2-PIECE BOOM) 68
CONTROL VALVE 70
SWING VALVE 74
BLADE VALVE 75
LH AND RH TRAVEL VALVE BOOM VALVE 76
ARM VALVE BUCKET VALVE 77
BOOM SWING VALVE (2-PIECE BOOM VALVE) ATTACHMENT VALVE 78
CONTROL VALVE 79
SWING MOTOR 96
SWIVEL JOINT101
FINAL DRIVE102
TRAVEL MOTOR104
CYLINDERS106
SERVOCONTROL FEED UNIT108
ACCUMULATOR113
SHUTTLE VALVE114
PPC VALVES115
TRAVEL PPC VALVE124
BOOM AND ARM SAFETY VALVE125
BLADE SAFETY VALVE126
2-PIECE BOOM SAFETY VALVE127
OVERLOAD SENSOR SWITCH128
SOLENOID VALVES129
AIR-CONDITIONING UNIT131
ELECTRICAL DIAGRAM (1/5)133
ELECTRICAL DIAGRAM (2/5)135
ELECTRICAL DIAGRAM (3/5)137
ELECTRICAL DIAGRAM (4/5)139
ELECTRICAL DIAGRAM (5/5)141
20TESTING AND ADJUSTMENTS143
NORMAL OR STANDARD TECHNICAL DATA144
ATTREZZI SPECIALI157
MEASURING THE ENGINE SPEED159
ADJUSTING VALVE CLEARANCE160
MEASURING COMPRESSION PRESSURE161
TESTING AND ADJUSTING FUEL INJECTION TIMING162
TESTING AND ADJUSTING FAN BELT TENSION164
CHECKING AND TIGHTENING THE COMPRESSOR FAN-BELT165
ADJUSTING THE STROKE OF THE ACCELERATOR LEVER166
ADJUSTING THE SAFETY MICROSWITCH167
MEASURING THE SWING CIRCLE AXIAL CLEARANCE168
TESTING AND ADJUSTING TRACK-SHOE TENSION169
AIR BLEEDING FROM HYDRAULIC CIRCUITS170
RELEASING RESIDUAL PRESSURE FROM THE CIRCUITS172
CHECKING AND REGULATING PRESSURE IN THE HYDRAULIC CIRCUITS173
TESTING AND SETTING OF MAIN VALVES174
ADJUSTING PC VALVE176
MEASURING LS DIFFERENTIAL PRESSURE AND ADJUSTING LS VALVE177
CHECKING AND ADJUSTING PRESSURES IN THE SERVOCONTROL FEED UNIT179
MEASURING PUMPS DELIVERY AND FLOW CONTROL STARTING POINT PUMP P1180
MEASURING TRAVEL DEVIATION181
ADJUSTING THE MAXIMUM SPEED OF THE TRAVEL MOTORS182
MEASURING INNER OIL LEAKAGE OF TRAVEL MOTOR183
ADJUSTING BOOM AND ARM SAFETY VALVES184
ADJUSTING 2nd BOOM SAFETY VALVES185
MEASURING AND SETTING OF PRESSURE SWITCH SIGNAL OVERLOAD OPERATION186
MEASUREMENT OF INTERNAL OIL LEAKAGES IN THE SWING MOTOR187
CHECKING FOR LEAKAGES INSIDE THE SWIVEL JOINT188
ANALYSIS OF THE CAUSES OF HYDRAULIC DRIFTS190
TESTING THE AIR-CONDITIONING UNIT197
EMPTYING THE AIR-CONDITIONING UNIT199
30REMOVAL AND INSTALLATION201
HOW TO READ THE MANUAL203
PRECAUTIONS TO BE TAKEN WHEN WORKING204
SPECIAL TOOLS205
STARTER MOTOR207
ALTERNATOR208
AIR-CONDITIONING UNIT COMPRESSOR209
INJECTION PUMP211
NOZZLE HOLDER215
CYLINDER HEAD216
THERMOSTAT219
SEAT220
CABIN221
ENGINE HOOD223
CONDENSER UNIT224
FRONT HOOD226
HEATING FAN UNIT227
AIR CONIDTIONING FAN UNIT229
RADIATOR232
FUEL TANK234
HYDRAULIC OIL TANK236
ENGINE-PUMP GROUP237
PUMP GROUP241
ENGINE-PUMP COUPLING JOINT243
MAIN PUMP INPUT SHAFT OIL SEAL244
GEAR-PUMP245
SWIVEL JOINT246
SWING MOTOR247
SWING MACHINERY248
CONTROL VALVE262
REVOLVING FRAME263
COUNTERWEIGHT265
SWING CIRCLE266
TRACK SHOES267
SPROCKET ASSEMBLY268
FINAL DRIVE269
IDLER AND RECOIL SPRING ASSEMBLY282
IDLER283
RECOIL SPRING GROUP AND CYLINDER284
TRACK ROLLER285
CARRIER ROLLER286
RH PPC VALVE (BOOM-BUCKET)287
LH PPC VALVE (ARM-SWING)288
BLADE PPC VALVE290
TRAVEL PEDAL CONTROL291
BOOM SWING PEDAL CONTROL292
1st BOOM PEDAL CONTROL293
BOOM CYLINDER (For 1-piece boom)294
BOOM CYLINDER (For 2-piece boom)295
2nd BOOM CYLINDERS297
ARM CYLINDER299
BUCKET CYLINDER300
BOOM SWING CYLINDER301
BLADE CYLINDER302
WORK EQUIPMENT CYLINDERS303
WORK EQUIPMENT (For 1-piece boom)308
WORK EQUIPMENT (For 2-piece boom)309
BUCKET311
ARM312
2nd BOOM315
BOOM (For 1-piece boom)317
BOOM (For 2-piece boom)318
SWING SUPPORT320
BLADE321
40STANDARD MAINTENANCE323
PTO324
SWING CIRCLE325
TRACK FRAME326
IDLER327
CARRIER ROLLER328
TRACK ROLLER329
TRACK SHOE330
SPROCKET331
SWING MACHINERY332
HYDRAULIC PUMP334
CONTROL VALVE335
SWING MOTOR344
SWIVEL JOINT345
FINAL DRIVE346
TRAVEL MOTOR347
SERVOCONTROL FEED UNIT349
PPC VALVES350
BLADE351
SAFETY VALVE353
CYLINDERS354
WORK EQUIPMENT356

IMAGES PREVIEW OF THE MANUAL:

S.M 19/12/24