Komatsu PC25-1, PC30-7, PC40-7, PC45-1 Hydraulic Excavator Shop Manual SEBM020S0707

Komatsu PC25-1, PC30-7, PC40-7, PC45-1 Hydraulic Excavator Shop Manual SEBM020S0707 - Image 2

Komatsu PC25-1, PC30-7, PC40-7, PC45-1 Hydraulic Excavator Shop Manual SEBM020S0707 - Image 3

Komatsu PC25-1, PC30-7, PC40-7, PC45-1 Hydraulic Excavator Shop Manual SEBM020S0707 - Image 4

Komatsu PC25-1, PC30-7, PC40-7, PC45-1 Hydraulic Excavator Shop Manual SEBM020S0707 - Image 5

komatsu pc25 1 pc30 7 pc40 7 pc45 1 hydraulic excavator shop manual sebm020s0707 2

komatsu pc25 1 pc30 7 pc40 7 pc45 1 hydraulic excavator shop manual sebm020s0707 3

Komatsu PC25-1, PC30-7, PC40-7, PC45-1 Hydraulic Excavator Shop Manual SEBM020S0707

$40.00

Type Of Manual: Shop Manual
Manual ID: SEBM020S0707
Format: PDF
Size: 22.5MB
Number of Pages: 387

Category: Komatsu Shop Manual PDF

Model List:
- PC25-1 Hydraulic Excavator
- PC30-7 Hydraulic Excavator
- PC40-7 Hydraulic Excavator
- PC45-1 Hydraulic Excavator

0.1. HOW TO READ THE SHOP MANUAL
0.2. HOISTING INSTRUCTIONS
0.3. COATING MATERIALS
0.4. STANDARD TIGHTENING TORQUE
0.5. ELECTRIC WIRE CODE
0.6. CONVERSION TABLE
0.7. WEIGHT TABLE
0.8. WEIGHT TABLE
0.9. LIST OF LUBRICANT AND WATER
1. STRUCTURE AND FUNCTION
1.1. POWER TRAIN
1.2. SWING CIRCLE
1.3. SWING MACHINERY
1.4. TRACK FRAME AND RECOIL SPRING
1.5. HYDRAULIC PIPING
1.6. HYDRAULIC CIRCUIT DIAGRAM
1.7. HYDRAULIC TANK AND FUEL TANK
1.8. HYDRAULIC PUMP
1.9. CONTROL PUMP
1.10. SPOOL CONTROL VALVE
1.11. SPOOL CONTROL VALVE
1.12. SWING MOTOR
1.13. CENTER SWIVEL JOINT
1.14. TRAVEL MOTOR
1.15. HYDRAULIC CYLINDER
1.16. VALVE CONTROL
1.17. PPC VALVE
1.18. SOLENOID VALVE
1.19. WORK EQUIPMENT
1.20. HYDRAULIC BREAKER
1.21. ELECTRICAL CIRCUIT DIAGRAM
1.22. MONITOR SYSTEM
2. TESTING AND ADJUSTING
2.1. TABLE OF JUDGEMENT STANDARD VALUE
2.2. STANDARD VALUE TABLE FOR ELECTRICAL SYSTEM
2.3. TOOL FOR TESTING, ADJUSTING, AND TROUBLESHOOTING
2.4. ADJUSTING VALVE CLEARANCE
2.5. MEASURING COMPRESSION PRESSURE
2.6. ADJUSTING FUEL INJECTION TIMING
2.7. MEASURING ENGINE OIL PRESSURE
2.8. ADJUSTING FUEL CONTROL LEVER
2.9. TESTING AND ADJUSTING HYDRAULIC PRESSURE IN WORK EQUIPMENT, SWING, TRAVEL CIRCUIT
2.10. TESTING CONTROL CIRCUIT PRESSURE
2.11. MEASURING OUTPUT PRESSURE OF PPC VALVE
2.12. ADJUSTING PPC VALVE
2.13. ADJUSTING WORK EQUIPMENT, SWING PPC VALVE
2.14. MEASURING SOLENOID VALVE OUTLET PORT PRESSURE
2.15. ADJUSTING BLADE CONTROL LEVER
2.16. TESTING LOCATIONS CAUSING HYDRAULIC DRIFT OF WORK EQUIPMENT
2.17. BLEEDING AIR FROM HYDRAULIC CIRCUIT
2.18. RELEASING REMAINING FROM HYDRAULIC CIRCUIT
2.19. TESTING HYDRAULIC BREAKER GAS PRESSURE
2.20. TROUBLESHOOTING
2.20.1. SEQUENCE OF EVENTS IN TROUBLESHOOTING
2.20.2. PRECAUTIONS WHEN CARRYING OUT MAINTENANCE
2.20.3. CHECKS BEFORE TROUBLESHOOTING
2.20.4. ELECTRICAL CIRCUIT DIAGRAM
2.20.5. POSITION OF CONNECTORS FOR TROUBLESHOOTING
2.20.6. CONNECTION TABLE FOR CONNECTOR
2.20.7. METHOD OF USING TROUBLESHOOTING CHARTS
2.20.8. TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE)
2.20.8.1. E1 THE ENGINE DOES NOT STOP WHEN THE STARTING SWITCH IS TURNED OFF
2.20.8.2. E2 WORK EQUIPMENT DOES NOT MOVE EVEN WHEN WORK EQUIPMENT LOCK LEVER IS RELEASED
2.20.8.3. E3 WORK EQUIPMENT MOVES EVEN WHEN WORK EQUIPMENT LOCK LEVER IS LOCKED
2.20.8.4. E4 TRAVEL SPEED DOES NOT INCREASE EVEN WHEN TRAVEL SPEED ACCELERATION PEDAL IS DEPRESSED
2.20.8.5. E5 TRAVEL SPEED INCREASES EVEN WHEN TRAVEL SPEED ACCELERATION PEDAL IS NOT DEPRESSED
2.20.9. TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (H MODE)
2.20.9.1. H1 SPEEDS OF WORK EQUIPMENT, TRAVEL, SWING ARE ALL SLOW
2.20.9.2. H2 THERE IS EXCESSIVE DROP IN ENGINE SPEED, OR ENGINE STALLS
2.20.9.3. H3 WORK EQUIPMENT, TRAVEL, SWING DO NOT MOVE, OR SPEED IS EXTREMELY SLOW
2.20.9.4. H4 ALL WORK EQUIPMENT, TRAVEL, SWING LACK POWER
2.20.9.5. H5 ABNORMAL NOISE GENERATED (FROM AROUND PUMP)
2.20.9.6. H6 WORK EQUIPMENT (BOOM, ARM, BUCKET) SPEED IS SLOW
2.20.9.7. H7 WORK EQUIPMENT (BOOM, ARM, BUCKET) LACKS POWER
2.20.9.8. H8 EXCESSIVE HYDRAULIC DRIFT
2.20.9.9. H9 EXCESSIVE TIME LAG
2.20.9.10. H10 WHEN MACHINE IS TRAVELING, IT DEVIATES NATURALLY TO ONE SIDE
2.20.9.11. H11 EXCESSIVE DEVIATION WHEN STARTING (PC30, 40)
2.20.9.12. H12 TRAVEL LACKS POWER (OR SPEED IS SLOW)
2.20.9.13. H13 TRAVEL SPEED DOES NOT SWITCH
2.20.9.14. H14 MACHINE DOES NOT MOVE (ONE SIDE ONLY)
2.20.9.15. H15 TRAVEL LEVER IS HEAVY
2.20.9.16. H16 DOES NOT SWING
2.20.9.17. H17 SWING SPEED IS SLOW OR ACCELERATION IS POOR
2.20.9.18. H18 EXCESSIVE OVERRUN WHEN STOPPING SWING
2.20.9.19. H19 EXCESSIVE SHOCK WHEN STOPPING SWING
2.20.9.20. H20 EXCESSIVE ABNORMAL NOISE WHEN STOPPING SWING
2.20.9.21. H21 EXCESSIVE HYDRAULIC DRIFT OF SWING
2.20.9.22. H22 EXCESSIVE HYDRAULIC DRIFT OF BOOM SWING
2.20.9.23. TABLE OF FAILURE MODES AND CAUSES
2.20.10. TROUBLESHOOTING OF MONITOR SYSTEM (M MODE)
2.20.10.1. M1 MONITOR PANEL DOES NOT WORK
2.20.10.2. M2 MONITOR PANEL CAUTION AND GAUGE LAMPS DO NOT LIGHT UP FOR 3 SECONDS AFTER STARTING SWITCH IS TURNED ON, OR ALL LAMPS STAY
2.20.10.3. M3 (OIL PRESSURE CAUTION LAMP) DOES NOT LIGHT UP WHEN STARTING SWITCH IS TURNED ON (ENGINE STOPPED)
2.20.10.4. M4 (CHARGE CAUTION LAMP) DOES NOT LIGHT UP WHEN STARTING SWITCH IS TURNED ON (ENGINE STOPPED)
2.20.10.5. M5 (PREHEATING PILOT LAMP) DOES NOT LIGHT UP WHEN PREHEATING
2.20.10.6. M6 (ENGINE OIL LEVEL CAUTION LAMP) LIGHTS UP WHEN STARTING SWITCH IS TURNED ON (ENGINE STOPPED) (ENGINE OIL LEVEL IS NORMAL)
2.20.10.7. M7 (ENGINE OIL PRESSURE CAUTION LAMP) LIGHTS UP WHEN ENGINE IS RUNNING (ENGINE OIL PRESSURE IS NORMAL)
2.20.10.8. M8 (CHARGE CAUTION LAMP) LIGHTS UP WHEN ENGINE IS RUNNING
2.20.10.9. M9 ABNORMALITY IN COOLANT TEMPERATURE GAUGE DISPLAY
2.20.10.10. M10 ABNORMALITY IN FUEL GAUGE DISPLAY
2.20.10.11. M11 WHEN STARTING SWITCH IS TURNED ON, BUZZER DOES NOT SOUND FOR 1 SECOND
2.20.10.12. M12 ABNORMALITY IN SERVICE METER DISPLAY
2.20.10.13. M13 NIGHT LIGHTING DOES NOT LIGHT UP
2.20.10.14. M14 HEATER DOES NOT WORK WHEN HEATER SWITCH IS OPERATED (MACHINES WITH CAB SPECIFICATION)
2.20.11. TROUBLESHOOTING OF HYDRAULIC BREAKER
3. DISASSEMBLY AND ASSEMBLY
3.1. METHOD OF USING MANUAL
3.2. PRECAUTIONS WHEN CARRYING OUT OPERATION
3.3. SPECIAL TOOL LIST
3.4. WEIGHT TABLE
3.5. TIGHTENING TORQUES AND STANDARD VALUES TABLE
3.6. LUBRICANT AND COOLANT TABLE
3.7. ENGINE, HYDRAULIC PUMP ASSEMBLY
3.7.1. REMOVAL
3.7.2. INSTALLATION
3.8. HYDRAULIC PUMP ASSEMBLY
3.8.1. HYDRAULIC PUMP ASSEMBLY (PC307)
3.8.1.1. DISASSEMBLY
3.8.1.2. ASSEMBLY
3.8.2. HYDRAULIC PUMP ASSEMBLY (PC451)
3.8.2.1. DISASSEMBLY
3.8.2.2. ASSEMBLY
3.9. GEAR PUMP ASSEMBLY
3.9.1. DISASSEMBLY AND ASSEMBLY
3.10. CENTER SWIVEL JOINT ASSEMBLY
3.10.1. REMOVAL AND INSTALLATION
3.10.2. DISASSEMBLY AND ASSEMBLY
3.11. TRAVEL MOTOR ASSEMBLY
3.11.1. TRAVEL MOTOR ASSEMBLY (PC251, PC307, PC407)
3.11.1.1. DISASSEMBLY
3.11.1.2. ASSEMBLY
3.11.2. TRAVEL MOTOR ASSEMBLY (PC451)
3.11.2.1. DISASSEMBLY
3.11.2.2. ASSEMBLY
3.12. SWING MOTOR ASSEMBLY
3.12.1. DISASSEMBLY
3.12.2. ASSEMBLY
3.13. SWING MACHINERY ASSEMBLY
3.13.1. DISASSEMBLY
3.13.2. ASSEMBLY
3.14. REVOLVING FRAME ASSEMBLY
3.14.1. REMOVAL AND INSTALLATION
3.15. RECOIL SPRING ASSEMBLY
3.15.1. DISASSEMBLY
3.15.2. ASSEMBLY
3.16. SPOOL CONTROL VALVE ASSEMBLY
3.16.1. DISASSEMBLY
3.16.2. ASSEMBLY
3.17. SPOOL CONTROL VALVE ASSEMBLY
3.17.1. DISASSEMBLY
3.17.2. ASSEMBLY
3.18. PPC VALVE ASSEMBLY
3.18.1. DISASSEMBLY
3.18.2. ASSEMBLY
3.19. HYDRAULIC CYLINDER ASSEMBLY
3.19.1. DISASSEMBLY
3.19.2. ASSEMBLY
3.20. WORK EQUIPMENT ASSEMBLY
3.20.1. REMOVAL AND INSTALLATION
3.21. BUCKET ASSEMBLY
3.21.1. REMOVAL AND INSTALLATION
3.22. HYDRAULIC BREAKER ASSEMBLY
3.22.1. REMOVAL AND INSTALLATION
3.22.2. DISASSEMBLY
3.22.3. ASSEMBLY
3.23. HYDRAULIC BREAKER BUSHING
3.23.1. REMOVAL
3.24. CHISEL
3.24.1. REMOVAL AND INSTALLATION
4. MAINTENANCE STANDARD
4.1. SWING CIRCLE
4.2. SWING MACHINERY
4.3. SPROCKET
4.4. TRACK FRAME AND RECOIL FRAME
4.5. SPOOL CONTROL VALVE
4.6. SPOOL CONTROL VALVE
4.7. SWING MOTOR
4.8. CENTER SWIVEL JOINT
4.9. PPC VALVE
4.10. HYDRAULIC CYLINDER
4.11. WORK EQUIPMENT
4.12. HYDRAULIC BREAKER
4.13. PISTON, CHISEL

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