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

$50.00

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

Description

  • 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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