Komatsu PC120-6 Custom Hydraulic Excavator Shop Manual SEBM005503
$40.00
- Type Of Manual: Shop Manual
- Manual ID: SEBM005503
- Format: PDF
- Size: 27.5MB
- Number of Pages: 502
Category: Komatsu Shop Manual PDF
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Model List:
- PC120-6 Custom Hydraulic Excavator
- 1. COVER
- 2. CONTENTS
- 3. GENERAL
- 3.1. GENERAL ASSEMBLY DRAWING
- 3.2. SPECIFICATIONS
- 3.3. WEIGHT TABLE
- 3.4. LIST OF LUBRICANT AND WATER
- 4. STRUCTURE AND FUNCTION
- 4.1. RADIATOR AND OIL COOLER
- 4.2. PTO (COUPLING)
- 4.3. POWER TRAIN
- 4.4. SWING CIRCLE
- 4.5. SWING MACHINERY
- 4.6. HYDRAULIC PIPING DRAWING
- 4.7. HYDRAULIC CIRCUIT DIAGRAM
- 4.8. CENTER SWIVEL JOINT
- 4.9. TRAVEL MOTOR
- 4.10. VALVE CONTROL
- 4.11. WORK EQUIPMENTSWING PPC VALVE
- 4.12. TRAVEL PPC VALVE
- 4.13. SERVICE PPC VALVE
- 4.14. SAFETY LOCK SOLENOID VALVE
- 4.15. PPC SHUTTLETRAVEL JUNCTION VALVE
- 4.16. EPC SOLENOID VALVE
- 4.17. BOOM HOLDING VALVE
- 4.18. ACCUMULATOR FOR BREAKER
- 4.19. ADDITIONAL FILTER FOR BREAKER
- 4.20. WORK EQUIPMENT
- 4.21. ELECTRICAL WIRING DIAGRAM
- 4.22. ELECTRICAL CIRCUIT DIAGRAM
- 4.23. ENGINE CONTROL SYSTEM
- 4.24. ELECTRIC CONTROL SYSTEM
- 4.25. MACHINE MONITOR SYSTEM
- 4.26. SENSORS
- 5. TESTING AND ADJUSTING
- 5.1. TABLE OF JUDGEMENT STANDARD VALUE
- 5.2. STANGARD VALUE TABLE ROR ELECTRICAL PARTS
- 5.3. TESTING AND ADJUSTING
- 5.3.1. TOOLS FOR TESTING, ADJUSTING,AND TROUBLESHOOTING
- 5.3.2. MEASURING ENGINE SPEED
- 5.3.3. MEASURING EXHAUST GAS COLOR
- 5.3.4. ADJUSTING VALVE CLEARANCE
- 5.3.5. MEASURING COMPRESSION PRESSURE
- 5.3.6. MEASURING BLOWBY PRESSURE
- 5.3.7. TESTING AND ADJUSTING FUEL INJECTION TIMING
- 5.3.8. MEASURING ENGINE OIL PRESSURE
- 5.3.9. TESTING AND ADJUSTING ALTERNATOR FAN BELT TENSION
- 5.3.10. TESTING AND ADJUSTING AIR CONDITIONER COMPRESSOR BELT TENSION
- 5.3.11. ADJUSTING FUEL CONTROL LEVER
- 5.3.12. TESTING AND ADJUSTING HYDRAULIC PRESSURE IN WORK EQUIPMENT,SWING,TRAVEL CIRCUIT
- 5.3.13. TESTING AND ADJUSTING TCC VALVE OUTPUT PRESSURE(SERVO PISTON INPUT PRSSURE)
- 5.3.14. TESTING AND ADJUSTING TVC VALVE OUTPUT PRESSURE(SERVO PISTON INPUT PRESSURE)
- 5.3.15. TESTING AND ADJUSTING LS VALVE OUTPUT PRESSURE(SERVO PISTON INPUT PRESSURE) AND LS DIFFERNTIAL PRESSURE
- 5.3.16. TESTING AND ADJUSTING CONTROL PUMP CIRCUIT OIL PRESSURE
- 5.3.17. TESTING SOLENOID VALVE OUTPUT PRESSURE
- 5.3.18. MEASURING PPC VALVE OUTPUT PRESSURE AND TESTING PPC SHUTTLE VALVE
- 5.3.19. ADJUSTING WORK EQUIPMENT AND SWING PPC VALVE
- 5.3.20. TESTING TRAVEL DEVIATION
- 5.3.21. MEASURING OIL LEAKAGE
- 5.3.22. RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT
- 5.3.23. TESTING CLEARANCE OF SWING CIRCLE BEARING
- 5.3.24. TESTING AND ADJUSTING TRACK SHOE TENSION
- 5.3.25. BLEEDING AIR
- 5.4. TROUBLESHOOTING
- 5.4.1. POINTS TO REMEMBER WHEN TROUBLESHOOTING
- 5.4.2. SEQUENCE OF EVENTS IN TROUBLESHOOTING
- 5.4.3. PRECAUTIONS WHEN CARRYING OUT MAINTENANCE
- 5.4.4. CHECKS BEFORE TROUBLESHOOTING
- 5.4.5. CONNECTOR TYPES AND MOUNTING LOCATIONS
- 5.4.6. CONNECTION TABLE FOR CONNECTOR PIN NUMBERS
- 5.4.7. METHOD OF USING TROUBLESHOOTING CHARTS
- 5.4.8. TROUBLESHOOTING OF ENGINE SYSTEM (S MODE)
- 5.4.9. TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE)
- 5.4.10. TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (H MODE)
- 5.4.11. TROUBLESHOOTING OF MACHINE MONITOR SYSTEM (M MODE)
- 6. DISASSEMBLY AND ASSEMBLY
- 6.1. METHOD OF USING MANUAL
- 6.2. PRECAUTIONS WHEN CARRYING OUT OPERATION
- 6.3. SPECIAL TOOL LIST
- 6.4. SPECIAL TOOL
- 6.5. STARTING MOTOR
- 6.5.1. REMOVAL AND INSTALLATION
- 6.6. ALTERATOR
- 6.6.1. REMOVAL AND INSTALLATION
- 6.7. AIR CONDITIONER COMPRESSOR
- 6.7.1. REMOVAL AND INSTALLATION
- 6.8. CONDENSER
- 6.8.1. REMOVAL AND INSTALLATION
- 6.9. ENGINE OIL COOLER CORE
- 6.9.1. REMOVAL AND INSTALLATION
- 6.10. FUEL INJECTION PUMP
- 6.10.1. REMOVAL
- 6.10.2. INSTALLATION
- 6.11. WATER PUMP
- 6.11.1. REMOVAL AND INSTALLATION
- 6.12. NOZZLE HOLDER
- 6.12.1. REMOVAL AND INSTALLATION
- 6.13. TURBOCHARGER
- 6.13.1. REMOVAL AND INSTALLATION
- 6.14. THERMOSTAT
- 6.14.1. REMOVAL AND INSTALLATION
- 6.15. ENGINE FRONT OIL SEAL
- 6.15.1. REMOVAL AND INSTALLATION
- 6.16. ENGINE REAR OIL SEAL
- 6.16.1. REMOVAL AND INSTALLATION
- 6.17. CYLINDER HEAD
- 6.17.1. REMOVAL
- 6.17.2. INSTALLATION
- 6.18. ENGINEHYDRAULIC PUMP
- 6.18.1. REMOVAL
- 6.18.2. INSTALLATION
- 6.19. HYDRAULIC OIL COOLER
- 6.19.1. REMOVAL AND INSTALLATION
- 6.20. REDIATORHYDRAULIC OIL COOLER
- 6.20.1. REMOVAL
- 6.20.2. INSTALLATION
- 6.21. FUEL TANK
- 6.21.1. REMOVAL AND INSTALLATION
- 6.22. CENTER SWIVEL JOINT
- 6.22.1. REMOVAL AND INSTALLATION
- 6.22.2. DISASSEMBLY AND ASSEMBLY
- 6.23. SPROCKET
- 6.23.1. REMOVAL AND INSTALLATION
- 6.24. TRAVEL MOTOR
- 6.24.1. REMOVAL AND INSTALLATION
- 6.25. SWING MACHINERYSWING MOTOR
- 6.25.1. REMOVAL AND INSTALLATION
- 6.26. SWING MACHINERY
- 6.26.1. DISASSEMBLY
- 6.26.2. ASSEMBLY
- 6.27. SWING MOTOR
- 6.27.1. REMOVAL AND INSTALLATION
- 6.27.2. DISASSEMBLY
- 6.27.3. ASSEMBLY
- 6.28. REVOLVING FRAME
- 6.28.1. REMOVAL
- 6.28.2. INSTALLATION
- 6.29. SWING CIRCLE
- 6.29.1. REMOVAL AND INSTALLATION
- 6.30. IDLERRECOIL SPRING
- 6.30.1. REMOVAL AND INSTALLATION
- 6.30.2. REMOVAL AND INSTALLATION
- 6.30.3. DISASSEMBLY
- 6.30.4. ASSEMBLY
- 6.31. CARRIER ROLLER
- 6.31.1. REMOVAL AND INSTALLATION
- 6.32. TRACK SHOE
- 6.32.1. REMOVAL AND INSTALLATION
- 6.33. HYDRAULIC TANK
- 6.33.1. REMOVAL
- 6.33.2. INSTALLATION
- 6.34. CONTROL PUMP
- 6.34.1. REMOVAL AND INSTALLATION
- 6.35. MAIN PUMP INPUT SHAFT OIL SEAL
- 6.35.1. REMOVAL AND INSTALLATION
- 6.36. LS SELECT VALVE
- 6.36.1. DISASSEMBLY AND ASSEMBLY
- 6.37. LS SHUTTLE VALVE
- 6.37.1. DISASSEMBLY AND ASSEMBLY
- 6.38. PRESSURE COMPENSATION VALVE
- 6.38.1. DISASSEMBLY
- 6.38.2. ASSEMBLY
- 6.39. TCCLS VALVE
- 6.39.1. REMOVAL AND INSTALLATION
- 6.40. LS CONTROL EPC VALVE
- 6.40.1. REMOVAL AND INSTALLATION
- 6.41. SOLENOID VALVE
- 6.41.1. REMOVAL AND INSTALLATION
- 6.42. WORK EQUIPMENT LEFT SIDE PPC VALVE (FOR ARM, SWING CONTROL)
- 6.42.1. REMOVAL AND INSTALLATION
- 6.43. WORK EQUIPMENT RIGHT SIDE PPC VALVE (FOR BOOM, BUCKET CONTROL)
- 6.43.1. REMOVAL AND INSTALLATION
- 6.44. WORK EQUIPMENT PPC VALVE (FOR BOOM, ARM, BUCKET, SWING CONTROL PPC VALVE)
- 6.44.1. DISASSEMBLY
- 6.44.2. ASSEMBLY
- 6.45. TRAVEL PPC VALVE
- 6.45.1. REMOVAL AND INSTALLATION
- 6.45.2. DISASSEMBLY AND ASSEMBLY
- 6.46. BUCKET CYLINDER
- 6.46.1. REMOVAL
- 6.46.2. INSTALLATION
- 6.47. HYDRAULIC CYLINDER
- 6.47.1. REMOVAL AND INTALLATION
- 6.48. COUNTERWEIGHT
- 6.48.1. REMOVAL AND INSTALLATION
- 6.49. MONITOR
- 6.49.1. REMOVAL AND INSTALLATION
- 7. MAINTENANCE STANDARD
- 7.1. SWING MACHINERY
- 7.2. CENTER SWIVEL JOINT
- 7.3. WORK EQUIPMENTSWING PPC VALVE
- 7.4. TRAVEL PPC VALVE
- 7.5. SERVICE PPC VALVE
- 7.6. PPC SHUTTLETRAVEL JUNCTION VALVE
- 7.7. LS CONTROL EPC SOLENOID VALVE
- 7.8. BOOM HOLDING VALVE
- 7.9. HYDRAULIC CYLINDER
- 7.10. WORK EQUIPMENT
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