Komatsu Hydraulic Excavator PC80MR-3 Shop Manual WEBM008601 PDF

Description

Komatsu Hydraulic Excavator PC80MR-3 Shop Manual WEBM008601  – PDF DOWNLOAD

FILE DETAILS:

Komatsu Hydraulic Excavator PC80MR-3 Shop Manual WEBM008601  – PDF DOWNLOAD

Language : English
Pages :302
Downloadable : Yes
File Type : PDF

DESCRIPTION:

Komatsu Hydraulic Excavator PC80MR-3 Shop Manual WEBM008601  – PDF DOWNLOAD

Serial Number: PC80MR-3 F00003 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.

TABLE OF CONTENTS:

Komatsu Hydraulic Excavator PC80MR-3 Shop Manual WEBM008601  – PDF DOWNLOAD

Serial Number: PC80MR-3 F00003 and up

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
SWING CIRCLE 29
SWING MACHINERY 31
TRACK FRAME AND IDLER CUSHION 34
IDLER 36
TRACK ROLLER 37
CARRIER ROLLER 38
SPROCKET 39
TRACK SHOE 40
SHOES 43
RUBBER SHOE 44
SWIVEL JOINT 45
TRAVEL MOTOR 46
WORK EQUIPMENT CYLINDER 48
SOLENOID VALVE GROUP 52
CONTROL VALVE 54
CLSS 65
SWING MOTOR 84
ATTACHMENT 93
TRAVEL PPC VALVE 98
BLADE, BOOM SWING, 2-PIECE BOOM PPC VALVES102
EQUIPMENT106
20 TESTING AND ADJUSTMENTS109
NORMAL OR STANDARD TECHNICAL DATA111
FOR THE ENGINE111
FOR MACHINE112
PUMP FEATURES119
CHECK POSITIONS120
SPECIAL TOOLS125
MEASURING THE ENGINE SPEED127
1 Measuring engine speed127
2 Measuring engine speed to check compression pressure128
CHECKING THE EXHAUST SMOKE COLOUR129
1 Checking with tool G1129
2 Checking with tool G2129
REMOVAL OF VALVES COVER131
ADJUSTING VALVE CLEARANCE133
MEASURING COMPRESSION PRESSURE136
TESTING AND ADJUSTING FUEL INJECTION TIMING138
Test138
Adjustment procedure140
CHECKING ENGINE OIL PRESSURE142
CHECKING AND REGULATING PRESSURE IN THE HYDRAULIC CIRCUITS143
CHECKING AND CALIBRATING PRESSURE IN THE SECONDARY VALVES145
1 Preparing the machine145
2 Checking revolving frame rotational pressure145
3 Adjusting general valve for revolving frame rotation and blade circuit146
4 Checking boom, arm, bucket, boom swing and travel pressure146
5 Adjusting secondary valve for boom, arm, bucket, boom swing and travel147
6 Checking Unloading pressure147
CHECKING AND ADJUSTING THE LS (Load Sensing) VALVE148
1 Measuring DPLS differential pressure148
2 With analog pressure gauge149
3 Adjusting the valve149
ADJUSTING PC VALVE150
CHECKING SERVO-CONTROL CIRCUIT PRESSURE151
1 Checking151
2 Adjustment151
CHECKING PPC VALVE DELIVERY PRESSURE152
CHECKING SOLENOID VALVE OUTPUT PRESSURE153
ADJUSTING BOOM SAFETY VALVE154
SAFETY PRESSURE SWITCH CALIBRATION:155
ADJUSTING PPC VALVE CLEARANCE156
MEASURING TRAVEL DEVIATION157
1 Measuring the deviation157
CHECKING TRAVEL SPEED158
ANALYSIS OF THE CAUSES OF HYDRAULIC DRIFTS159
1 Boom test159
2 Arm test160
3 Testing the functionality of the boom safety valve161
4 Bucket test161
5 Boom swing test162
8 Blade test163
9 Swing motor test164
10 Travel motors164
METHODS FOR TESTING FOR LEAKAGES INSIDE THE SWIVEL JOINT165
1 Functionality test165
2 Identification of defective seal165
ELIMINATING PRESSURES FROM CIRCUITS166
MEASUREMENT OF CLEARANCE IN SWING CIRCLE BEARINGS167
TESTING AND ADJUSTING TRACK SHOE TENSION168
1 Checking168
2 Adjustment168
AIR BLEEDING FROM HYDRAULIC CIRCUITS169
Order for operations169
1 Bleeding air from pump169
2 Bleeding air from tank170
3 Bleeding air from LS circuits170
4 Bleeding air from hydraulic cylinders170
5 Bleeding air from swing motors171
6 Air bleeding from travel motors171
7 Bleeding air from the revolving frame servocontrol circuit171
TESTING THE AIR-CONDITIONING UNIT172
1 Testing the working temperature172
2 Checking the unit173
EMPTYING THE AIR-CONDITIONING UNIT174
30 REMOVAL AND INSTALLATION175
HOW TO READ THE MANUAL177
PRECAUTIONS TO BE TAKEN WHILE WORKING178
SPECIAL TOOLS179
COUNTERWEIGHT183
Removal183
Installation184
INJECTION PUMP185
Removal185
Installation187
ENGINE HEAD188
Removal188
Installation192
PUMP GROUP193
Removal193
Installation195
GEAR-PUMP196
Installation196
ENGINE – PUMPS197
Installation201
COMPLETE RADIATOR AND AIR CONDITIONING CONDENSER202
Removal202
Installation204
SWING MOTOR AND REDUCTION GEAR205
Removal205
Installation206
SWING MOTOR207
Removal207
Installation207
SWING REDUCTION GEAR208
SWIVEL JOINT221
Removal221
Installation222
CONTROL VALVE224
Removal224
Installation226
LH PPC VALVE227
Removal227
Installation228
RH PPC VALVE229
Removal229
Installation229
EQUIPMENT PPC VALVES230
TRAVEL PPC VALVE231
Removal231
Installation232
ADDITIONAL EQUIPMENT AND BOOM SWING PPC VALVE234
Removal234
Installation234
BLADE PPC VALVE235
Removal235
Installation235
ACCELERATOR POTENTIOMETER236
Removal236
Installation236
CONTROLLER237
Removal237
Installation237
SAFETY MICROSWITCH238
Removal238
Installation239
HYDRAULIC OIL TANK240
Removal240
Installation241
FUEL TANK242
Installation244
CONTROL MODULES (MACHINE – ENGINE – KOMTRAX)245
Removal245
Installation245
EVAPORATOR UNIT246
Removal246
Installation250
CABIN251
Removal251
Installation255
SWING CIRCLE256
Removal256
Installation256
REVOLVING FRAME257
Removal257
Installation259
EQUIPMENT (1-piece boom version)260
Removal260
Installation262
BOOM CYLINDER (For 1-piece boom)263
Removal263
Installation264
ARM CYLINDER265
Removal265
Installation266
BUCKET CYLINDER267
Removal267
Installation268
BOOM SWING CYLINDER269
Removal269
Installation270
BLADE CYLINDER271
Removal271
Installation271
CYLINDERS272
SWING SUPPORT277
Removal277
Installation279
STEEL SHOES280
Removal280
Installation280
RUBBER SHOES281
Removal281
Installation281
SPROCKET282
Removal282
Installation282
COMPLETE TRAVEL ASSEMBLY283
Removal283
Installation284
TRACK SHOE IDLER285
BUMPER SPRING288
LOWER IDLER ROLLERS291
90 OTHER295
HYDRAULIC CIRCUIT (STANDARD VERSION)297
ELECTRICAL DIAGRAM299

IMAGES PREVIEW OF THE MANUAL:

S.M 26/12/24