Komatsu PC75R-2 Hydraulic Excavator Shop Manual WEBM004000 – PDF DOWNLOAD
$29.95
Komatsu PC75R-2 Hydraulic Excavator Shop Manual WEBM004000 – PDF DOWNLOAD
SERIAL NUMBER
PC75R·2 22E5200783 and up
Description
Komatsu PC75R-2 Hydraulic Excavator Shop Manual WEBM004000 – PDF DOWNLOAD
FILE DETAILS:
Komatsu PC75R-2 Hydraulic Excavator Shop Manual WEBM004000 – PDF DOWNLOAD
Language : English
Pages :364
Downloadable : Yes
File Type : PDF
DESCRIPTION:
Komatsu PC75R-2 Hydraulic Excavator Shop Manual WEBM004000 – PDF DOWNLOAD
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.
service workshop.
The manual is divided into chapters on each main group of components; these chapters are further
divided into the following sections.
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.
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.
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.
This section gives the judgement standards when inspecting disassembled parts.
TABLE OF CONTENTS:
Komatsu PC75R-2 Hydraulic Excavator Shop Manual WEBM004000 – PDF DOWNLOAD
MAIN MENU 0
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 COOLANT QUANTITIES 17
10 STRUCTURE AND FUNCTION 21
PTO 22
POWER TRAIN 23
TRACK FRAME 25
IDLER AND RECOIL SPRING 26
CARRIER ROLLER 27
TRACK ROLLER 27
TRACK SHOE 28
SWING CIRCLE 29
SWING MACHINERY 30
HYDRAULIC CIRCUIT DIAGRAM (STANDARD) 31
HYDRAULIC CIRCUIT DIAGRAM (2-PIECE BOOM) 33
HYDRAULIC PUMP 34
9-SPOOL CONTROL VALVE (STANDARD) 60
10-SPOOL CONTROL VALVE (STANDARD+2-PIECE BOOM) 62
SWING MOTOR 90
CENTER SWIVEL JOINT 94
TRAVEL MOTOR 96
PARKING BRAKE 98
BRAKE VALVE 99
TRAVEL MOTOR101
REDUCTION GEAR103
CYLINDERS104
SERVOCONTROL FEED UNIT106
ACCUMULATOR111
PPC VALVE (WORK EQUIPMENT)112
PPC VALVE (BLADE, BOOM SWING, 2-PIECE BOOM)116
TRAVEL PPC VALVE120
BOOM AND ARM SAFETY VALVE125
BLADE SAFETY VALVE126
2-PIECE BOOM SAFETY VALVE127
OVERLOAD SENSOR SWITCH128
SOLENOID VALVE129
ELECTRICAL DIAGRAM (1/3)131
ELECTRICAL DIAGRAM (2/3)133
ELECTRICAL DIAGRAM (3/3)135
20 TESTING AND ADJUSTING139
NORMAL OR STANDARD TECHNICAL DATA140
SPECIAL TOOLS157
MEASURING THE ENGINE SPEED159
ADJUSTING VALVE CLEARANCE160
MEASURING COMPRESSION PRESSURE161
TESTING AND ADJUSTING FUEL INJECTION TIMING162
TESTING AND ADJUSTING FAN BELT TENSION164
ADJUSTING THE STROKE OF THE ACCELERATOR LEVER165
ADJUSTING PPC VALVE CLEARANCE166
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 CIRCUITS173
CHECKING AND REGULATING PRESSURE IN THE HYDRAULIC CIRCUITS174
TESTING AND SETTING OF MAIN VALVES175
ADJUSTING PC VALVE177
MEASURING LS DIFFERENTIAL PRESSURE AND ADJUSTING LS VALVE178
CHECKING AND ADJUSTING PRESSURES IN THE SERVOCONTROL FEED UNIT180
MEASURING PUMPS DELIVERY AND FLOW CONTROL STARTING POINT PUMP P1181
MEASURING TRAVEL DEVIATION183
ADJUSTING THE MAXIMUM SPEED OF THE TRAVEL MOTORS184
MEASURING INNER OIL LEAKAGE OF TRAVEL MOTOR185
ADJUSTING BOOM AND ARM SAFETY VALVES186
ADJUSTING 2nd BOOM SAFETY VALVES187
MEASURING AND SETTING OF PRESSURE SWITCH SIGNAL OVERLOAD OPERATION188
MEASUREMENT OF INTERNAL OIL LEAKAGES IN THE SWING MOTOR189
CHECKING FOR LEAKAGES INSIDE THE SWIVEL JOINT190
ANALYSIS OF THE CAUSES OF HYDRAULIC DRIFTS192
30 DISASSEMBLY AND ASSEMBLY201
HOW TO READ THE MANUAL203
PRECAUTIONS TO BE TAKEN WHEN WORKING204
SPECIAL TOOLS205
STARTER MOTOR207
REMOVAL AND INSTALLATION207
ALTERNATOR208
REMOVAL AND INSTALLATION208
INJECTION PUMP209
REMOVAL209
INSTALLATION212
NOZZLE HOLDER213
REMOVAL AND INSTALLATION213
CYLINDER HEAD214
REMOVAL214
INSTALLATION216
SEAT217
REMOVAL AND INSTALLATION217
CABIN218
REMOVAL AND INSTALLATION218
ENGINE HOOD219
REMOVAL AND INSTALLATION219
FRONT HOOD220
REMOVAL AND INSTALLATION220
HEATING FAN221
REMOVAL AND INSTALLATION221
RADIATOR222
REMOVAL222
INSTALLATION223
FUEL TANK224
REMOVAL224
INSTALLATION225
HYDRAULIC OIL TANK226
REMOVAL AND INSTALLATION226
ENGINE-PUMP GROUP227
REMOVAL227
INSTALLATION230
PUMP GROUP231
REMOVAL231
INSTALLATION232
ENGINE-PUMP COUPLING JOINT233
REMOVAL AND INSTALLATION233
MAIN PUMP INPUT SHAFT OIL SEAL234
REMOVAL AND INSTALLATION234
GEAR PUMP235
REMOVAL AND INSTALLATION235
SWIVEL JOINT236
REMOVAL AND INSTALLATION236
SWING MOTOR237
REMOVAL AND INSTALLATION237
SWING MACHINERY238
REMOVAL AND INSTALLATION238
DISASSEMBLY239
ASSEMBLY242
CONTROL VALVE245
REMOVAL AND INSTALLATION245
REVOLVING FRAME246
REMOVAL246
INSTALLATION247
COUNTERWEIGHT248
REMOVAL AND INSTALLATION248
SWING CIRCLE249
REMOVAL AND INSTALLATION249
TRACK SHOES250
REMOVAL AND INSTALLATION250
SPROCKET ASSEMBLY251
REMOVAL AND INSTALLATION251
TRAVEL GEAR MOTOR252
REMOVAL AND INSTALLATION252
DISASSEMBLY253
ASSEMBLY268
BALL BEARING PRELOAD283
ADJUSTING283
AXIAL CLEARANCE ON TAPERED ROLLER BEARINGS284
ADJUSTING284
IDLER AND RECOIL SPRING ASSEMBLY285
REMOVAL AND INSTALLATION285
IDLER286
DISASSEMBLY AND ASSEMBLY286
RECOIL SPRING GROUP AND CYLINDER287
DISASSEMBLY AND ASSEMBLY287
TRACK ROLLER288
REMOVAL AND INSTALLATION288
CARRIER ROLLER289
REMOVAL AND INSTALLATION289
RH PPC VALVE (BOOM-BUCKET)290
REMOVAL290
INSTALLATION291
LH PPC VALVE (ARM-SWING)292
REMOVAL292
INSTALLATION293
BLADE PPC VALVE294
REMOVAL AND INSTALLATION294
TRAVEL PEDAL CONTROL295
REMOVAL AND INSTALLATION295
1st BOOM SWING PEDAL CONTROL296
REMOVAL AND INSTALLATION296
BOOM CYLINDER (FOR 1-PIECE BOOM)297
REMOVAL AND INSTALLATION297
BOOM CYLINDER (FOR 2-PIECE BOOM)298
REMOVAL298
INSTALLATION299
2nd BOOM CYLINDERS300
REMOVAL300
INSTALLATION301
ARM CYLINDER302
REMOVAL AND INSTALLATION302
BUCKET CYLINDER303
REMOVAL AND INSTALLATION303
BOOM SWING CYLINDER304
REMOVAL AND INSTALLATION304
BLADE CYLINDER305
REMOVAL AND INSTALLATION305
WORK EQUIPMENT CYLINDERS306
DISASSEMBLY306
ASSEMBLY307
WORK EQUIPMENT (FOR 1-PIECE BOOM)311
REMOVAL AND INSTALLATION311
WORK EQUIPMENT (FOR 2-PIECE BOOM)312
REMOVAL312
INSTALLATION313
BUCKET314
REMOVAL AND INSTALLATION314
ARM315
REMOVAL315
INSTALLATION317
2nd BOOM318
REMOVAL318
INSTALLATION319
BOOM (FOR 1-PIECE BOOM)320
REMOVAL AND INSTALLATION320
1st BOOM321
REMOVAL321
INSTALLATION322
SWING BRACKET323
REMOVAL AND INSTALLATION323
BLADE324
REMOVAL AND INSTALLATION324
40 MAINTENANCE STANDARD327
PTO328
SWING CIRCLE329
TRACK FRAME330
IDLER331
CARRIER ROLLER332
TRACK ROLLER333
TRACK SHOE334
SPROCKET335
SWING MACHINERY336
HYDRAULIC PUMP337
CONTROL VALVE338
SWING MOTOR348
SWIVEL JOINT349
TRAVEL MOTOR350
SERVOCONTROL FEED UNIT352
TRAVEL PPC VALVE353
PPC VALVE354
BLADE SAFETY VALVE356
CYLINDERS358
WORK EQUIPMENT (1-PIECE BOOM)360
WORK EQUIPMENT (2-PIECE BOOM)362
IMAGES PREVIEW OF THE MANUAL:
S.M 13/12/24
