KOMATSU PC 10-7 PC15-3 PC20-7 Shop Manual SEBM020P0703 – PDF DOWNLOAD
$29.95
KOMATSU PC 10-7 PC15-3 PC20-7 Shop Manual SEBM020P0703 – PDF DOWNLOAD
MACHINE MODEL
PC10-7 PC15-3 PC20-7
SERIAL No.
25001 and up
5001 and up
35001 and up
Description
KOMATSU PC 10-7 PC15-3 PC20-7 Shop Manual SEBM020P0703 – PDF DOWNLOAD
FILE DETAILS:
KOMATSU PC 10-7 PC15-3 PC20-7 Shop Manual SEBM020P0703 – PDF DOWNLOAD
Language : English
Pages :264
Downloadable : Yes
File Type : PDF
DESCRIPTION:
KOMATSU PC 10-7 PC15-3 PC20-7 Shop Manual SEBM020P0703 – PDF DOWNLOAD
MACHINE MODEL
PC10-7 PC15-3 PC20-7
SERIAL No.
25001 and up
5001 and up
35001 and up
-FOREWORD
- This shop manual has been prepared as an aid to improve the quality of repairs by
giving the serviceman 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.
For ease of understanding, the manual is divided into chapters for 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 understanding of the structure, but also serves as reference material for troubleshooting.
This section 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 PC 10-7 PC15-3 PC20-7 Shop Manual SEBM020P0703 – PDF DOWNLOAD
MACHINE MODEL
PC10-7 PC15-3 PC20-7
SERIAL No.
25001 and up
5001 and up
35001 and up
COVER 1
CONTENTS 2
10 STRUCTURE AND FUNCTION 17
POWER TRAIN 18
SWING CIRCLE 20
SWING MACHINERY 22
TRACK FRAME AND RECOIL SPRING 23
HYDRAULIC PIPING 27
HYDRAULIC CIRCUIT DIAGRAM 29
HYDRAULIC TANK AND FUEL TANK 32
HYDRAULIC PUMP 33
7-SPOOL CONTROL VALVE 34
2-SPOOL CONTROL VALVE 36
SWING MOTOR 38
CENTER SWIVEL JOINT 41
TRAVEL MOTOR 42
HYDRAULIC CYLINDER 43
VALVE CONTROL 49
WORK EQUIPMENT 50
ELECTRICAL CIRCUIT DIAGRAM 51
MONITOR SYSTEM 53
20 TESTING AND ADJUSTING 58
TABLE OF JUDGEMENT STANDARD VALUE 59
STANDARD VALUE TABLE FOR ELECTRICAL SYSTEM 75
TOOL FOR TESTING, ADJUSTING AND TROUBLESHOOTING 77
ADJUSTING VALVE CLEARANCE 78
MEASURING COMPRESSION PRESSURE 79
ADJUSTING FUEL INJECTION TIMING 80
ADJUSTING FUEL CONTROL LEVER 81
TESTING AND ADJUSTING HYDRAULIC PRESSURE IN WORK EQUIPMENT, SWING, TRAVEL CIRCUIT 82
TESTING LOCATIONS CAUSING HYDRAULIC DRIFT OF WORK EQUIPMENT 85
BLEEDING AIR 86
TROUBLESHOOTING 87
POINTS TO REMEMBER WHEN TROUBLESHOOTING 88
SEQUENCE OF EVENTS IN TROUBLESHOOTING 89
PRECAUTIONS WHEN CARRYING OUT MAINTENANCE 90
CHECKS BEFORE TROUBLESHOOTING 97
ELECTRICAL CIRCUIT DIAGRAM 98
POSITION OF CONNECTORS FOR TROUBLESHOOTING100
CONNECTION TABLE FOR CONNECTOR102
HANDLING CONNECTORS109
METHOD OF USING TROUBLESHOOTING CHARTS110
TROUBLESHOOTING OF ELECTRICAL SYSTEM (C MODE)112
C-1 THIS ENGINE DOES NOT STOP WHEN THE STARTING SWITCH IS TURNED OFF113
TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (H MODE)114
H-1 SPEEDS OF WORK EQUIPMENT, TRAVEL SWING ARE ALL SLOW ALL WORK EQUIPMENT, TRAVEL, SWING LACK POWER115
H-2 THERE IS EXCESSIVE DROP IN ENGINE SPEED, OR ENGINE STALLS WORK EQUIPMENT, TRAVEL, SWING DO NOT MOVE, OR SPEED IN EXTREMELY SLOW115
H-3 ABNORMAL NOISE GENERATED (FROM AROUND PUMP)116
H-4 CONTROL LEVER IS HEAVY116
H-5 WORK EQUIPMENT (BOOM, ARM, BUCKET) SPEED IS SLOW EXCESSIVE HYDRAULIC DRIFT117
H-6 WORK EQUIPMENT (BOOM, ARM, BUCKET) LACKS POWER 117
H-7 EXCESSIVE TIME LAG117
H-8 WHEN MACHINE IS TRAVELING IT DEVIATES NATURALLY TO ONE SIDE118
a) DEVIATES IN SAME DIRECTION BOTH IN FORWARD AND REVERSE118
b) DEVIATES IN DIFFERENT DIRECTION IN FORWARD AND REVERSE118
H-9 TRAVEL LACKS POWER (OR SPEED IS SLOW)120
H-10 MACHINE DOES NOT MOVE (ONE SIDE ONLY)120
H-11 DOES NOT SWING121
H-12 SWING SPEED IS SLOW OR ACCELERATION IS POOR123
H-13 EXCESSIVE OVERRUN WHEN STOPPING SWING123
H-14 EXCESSIVE SHOCK WHEN STOPPING SWING124
H-15 EXCESSIVE ABNORMAL NOISE WHEN STOPPING SWING125
H-16 EXCESSIVE HYDRAULIC DRIFT OF SWING126
H-17 EXCESSIVE HYDRAULIC OF BOOM SWING127
TABLE OF FAILURE MODES AND CAUSES128
TROUBLESHOOTING OF MONITOR SYSTEM (P MODE)130
P-1 MONITOR PANEL DOES NOT WORK131
P-2 MONITOR PANEL CAUTION AND GAUGE LAMPS DO NOT LIGHT UP FOR 3 SECONDS AFTER STARTING SWITCHES TURNED ON, OR ALL LAMPS STAY LIGHTED UP132
a) DO NOT LIGHT UP FOR 3 SECONDS132
b) ALL LAMPS STAY LIGHTED UP132
P-3 (OIL PRESSURE CAUTION LAMP) DOES NOT LIGHT UP WHEN STARTING SWITCH IS TURNED ON (ENGINE STOPPED)133
P-4 (CHARGE CAUTION LAMP) DOES NOT LIGHT UP WHEN STARTING SWITCH IS TURNED ON (ENGINE STOPPED)134
P-5 (PREHEATING PILOT LAMP) DOES NOT LIGHT UP WHEN PREHEATING135
P-6 (ENGINE OIL LEVEL CAUTION LAMP) LIGHTS UP WHEN STARTING SWITCH IS TURNED ON (ENGINE STOPPED) (ENGINE OIL LEVEL IS NORMAL)135
P-7 (ENGINE OIL PRESSURE CAUTION LAMP) LIGHTS UP WHEN ENGINE IS RUNNING (ENGINE OIL PRESSURE IS NORMAL)136
P-8 (CHARGE CAUTION LAMP) LIGHTS UP WHEN ENGINE IS RUNNING137
P-9 ABNORMALITY IN COOLANT TEMPERATURE GAUGE DISPLAY138
a) AFTER ENGINE IS STARTED, GAUGE STAYS AT LOWEST LEVEL AND DOES NOT MOVE138
b) AFTER ENGINE IS STARTED, LEVEL RISES IMMEDIATELY ENTERS TED RANGE EVEN WHEN ENGINE IS NOT OVERHEATING138
P-10 ABNORMALITY IN FUEL GAUGE DISPLAY139
a) ALL SEGMENTS OF FUEL GAUGE GO OUT139
b) FUEL LEVEL HAS GONE DOWN, BUT FUEL GAUGE STILL GIVES FULL DISPLAY, AND DOES NOT GO DOWN139
c) FUEL GAUGE DOES NOT GIVE FULL DISPLAY EVEN WHEN FUEL TANK IS FILLED140
P-11 WHEN STARTING SWITCH IS TURNED ON, BUZZER DOES NOT SOUND FOR 1 SECOND140
P-12 ABNORMALITY IN SERVICE METER DISPLAY141
a) SERVICE METER DOES NOT MOVE WHEN ENGINE IS RUNNING141
b) SERVICE METER PILOT LAMP DOES NOT FLASH141
P-13 NIGHT LIGHTING DOES NOT LIGHT UP 142
a) WHEN LAMP SWITCH IS AT POSITION 1OR POSITION 2, INTERNAL LIGHTING OF MONITOR (GAUGE PORTION) DOES NOT LIGHT UP142
b) WHEN LAMP SWITCH IS AT POSITION 2, WORKING LAMP DOES NOT LIGHT UP142
P-14 HEATER DOES NOT WORK WHEN HEATER SWITCH IS OPERATED (MACHINES WITH CAB SPECIFICATION)143
30 DISASSEMBLY AND ASSEMBLY144
METHOD OF USING MANUAL146
PRECAUTIONS WHEN CARRYING OUT OPERATION147
SPECIAL TOOL LIST149
STARTING MOTOR150
REMOVAL150
INSTALLATION150
ALTERNATOR151
REMOVAL151
INSTALLATION151
FUEL INJECTION PUMP152
REMOVAL152
INSTALLATION152
NOZZLE HOLDER153
REMOVAL153
INSTALLATION153
WATER PUMP154
REMOVAL154
INSTALLATION154
THERMOSTAT156
REMOVAL156
INSTALLATION156
ENGINE FRONT SEAL157
REMOVAL157
INSTALLATION157
ENGINE REAR SEAL158
REMOVAL158
INSTALLATION158
CYLINDER HEAD159
REMOVAL159
INSTALLATION160
RADIATOR AND OIL COOLER163
REMOVAL163
INSTALLATION163
ENGINE AND HYDRAULIC PUMP165
REMOVAL165
INSTALLATION166
DAMPER167
REMOVAL167
INSTALLATION167
CENTER SWIVEL JOINT168
REMOVAL168
INSTALLATION168
DISASSEMBLY170
ASSEMBLY170
TRAVEL MOTOR171
REMOVAL171
INSTALLATION171
DISASSEMBLY172
ASSEMBLY177
SPROCKET183
REMOVAL183
INSTALLATION183
SWING MOTOR AND SWING MACHINERY184
REMOVAL184
INSTALLATION184
SWING MOTOR 186
DISASSEMBLY186
ASSEMBLY188
SWING MACHINERY192
DISASSEMBLY192
ASSEMBLY194
REVOLVING FRAME196
REMOVAL196
INSTALLATION197
SWING CIRCLE200
REMOVAL200
INSTALLATION200
IDLER AND RECOIL SPRING201
REMOVAL201
INSTALLATION201
RECOIL SPRING202
DISASSEMBLY202
ASSEMBLY203
TRACK ROLLER204
REMOVAL204
INSTALLATION204
CARRIER ROLLER205
REMOVAL205
INSTALLATION205
RUBBER SHOE206
REMOVAL206
INSTALLATION206
HYDRAULIC PUMP207
REMOVAL207
INSTALLATION207
7-SPOOL CONTROL VALVE208
REMOVAL208
INSTALLATION208
2-SPOOL CONTROL VALVE210
REMOVAL210
INSTALLATION210
7-SPOOL CONTROL VALVE212
DISASSEMBLY212
ASSEMBLY214
2-SPOOL CONTROL VALVE216
DISASSEMBLY216
ASSEMBLY217
BOOM CYLINDER218
REMOVAL218
INSTALLATION218
ARM CYLINDER219
REMOVAL219
INSTALLATION219
BUCKET CYLINDER220
REMOVAL220
INSTALLATION220
SWING CYLINDER 221
REMOVAL221
INSTALLATION221
BLADE CYLINDER222
REMOVAL222
INSTALLATION222
HYDRAULIC CYLINDER223
DISASSEMBLY223
ASSEMBLY225
WORK EQUIPMENT227
REMOVAL227
INSTALLATION227
BUCKET228
REMOVAL228
INSTALLATION228
ARM229
REMOVAL229
INSTALLATION229
BOOM230
REMOVAL230
INSTALLATION230
BLADE231
REMOVAL231
INSTALLATION231
40 MAINTENANCE STANDARD233
SWING CIRCLE234
SWING MACHINERY236
TRACK FRAME AND RECOIL SPRING237
IDLER239
CARRIER ROLLER240
TRACK ROLLER242
TRACK SHOE244
HYDRAULIC PUMP245
7-SPOOL CONTROL VALVE246
2-SPOOL CONTROL VALVE249
SWING MOTOR251
TRAVEL MOTOR252
CENTER SWIVEL JOINT253
HYDRAULIC CYLINDER254
WORK EQUIPMENT257
IMAGES PREVIEW OF THE MANUAL:
S.M 19/12/24
