Komatsu PC750-6, PC800-6 Hydraulic Excavator Shop Manual SEBM025305

Description

• Model List:
  • PC750-6 Hydraulic Excavator
  • PC800-6 Hydraulic Excavator

• 1. COVER
• 2. CONTENTS
• 3. GENERAL
• 3.1. SPECIFICATION DRAWINGS
• 3.2. SPECIFICATIONS
• 3.3. WEIGHT TABLE
• 3.4. FUEL, COOLANT AND LUBRICANTS
• 4. STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
• 4.2. PTO LUBRICATION SYSTEM
• 4.3. POWER TRAIN
• 4.4. SWING MACHINERY
• 4.5. SWING CIRCLE
• 4.6. FINAL DRIVE
• 4.7. TRACK FRAME AND RECOIL SPRING
• 4.8. IDLER
• 4.9. CARRIER ROLLER
• 4.10. TRACK ROLLER
• 4.11. TRACK SHOE
• 4.12. MOTOR GREASE PUMP
• 4.13. HYDRAULIC TANK
• 4.14. HYDRAULIC PUMP
• 4.15. LINE OIL FILTER
• 4.16. PILOT OIL FILTER
• 4.17. DRAIN OIL FILTER
• 4.18. SPOOL CONTROL VALVE
• 4.19. SPOOL CONTROL VALVE
• 4.20. STRAIGHTTRAVEL VALVE
• 4.21. SWING MOTOR
• 4.22. CENTER SWIVEL JOINT
• 4.23. TRAVEL MOTOR
• 4.24. PPC CONTROL RELIEF VALVE
• 4.25. SAFETY LOCK VALVE
• 4.26. PPC ACCUMULATOR
• 4.27. VALVE CONTROL
• 4.28. WORK EQUIPMENT, SWING PPC VALVE
• 4.29. TRAVEL PPC VALVE
• 4.30. SOLENOID VALVE
• 4.31. HYDRAULIC CYLINDER
• 4.32. WORK EQUIPMENT
• 4.33. DIMENSIONS OF WORK EQUIPMENT
• 4.34. AIR CONDITIONER
• 4.35. ENGINE CONTROL
• 4.36. MACHINE CONTROL SYSTEM
• 4.37. MONITOR SYSTEM
• 4.38. SENSORS
• 5. TESTING AND ADJUSTING
• 5.1. STANDARD VALUE TABLE FOR ENGINE
• 5.2. STANDARD VALUE TABLE FOR CHASSIS
• 5.3. STANDARD VALUE TABLE FOR ELECTRICAL PARTS
• 5.4. TOOLS FOR TESTING, ADJUSTING, AND TROUBLESHOOTING
• 5.5. MEASURING AIR SUPPLY PRESSURE (BOOST PRESSURE)
• 5.6. MEASURING EXHAUST TEMPERATURE
• 5.7. MEASURING EXHAUST COLOR
• 5.8. ADJUSTING VALVE CLEARANCE
• 5.9. MEASURING BLOWBY PRESSURE
• 5.10. MEASURING COMPRESSION PRESSURE
• 5.11. MEASURING ENGINE OIL PRESSURE
• 5.12. HANDLING EQUIPMENT IN FUEL CIRCUIT
• 5.13. RELEASING REMAINING PRESSURE IN FUEL SYSTEM
• 5.14. MEASURING FUEL PRESSURE
• 5.15. REDUCED CYLINDER MODE OPERATION FOR ENGINE
• 5.16. BLEEDING AIR FROM FUEL CIRCUIT
• 5.17. CHECKING FOR LEAKAGE IN FUEL CIRCUIT
• 5.18. TESTING AND ADJUSTING ALTERNATOR BELT TENSION
• 5.19. TESTING AND ADJUSTING FAN BELT TENSION
• 5.20. TESTING AND ADJUSTING AIR CONDITIONER COMPRESSOR DRIVE BELT TENSION
• 5.21. HANDLING ENGINE CONTROLLER HIGH VOLTAGE CIRCUIT
• 5.22. ADJUSTING ENGINE SPEED SENSOR
• 5.23. TESTING AND ADJUSTING HYDRAULIC PRESSURE IN WORK EQUIPMENT, SWING, TRAVEL CIRCUIT
• 5.24. TESTING AND ADJUSTING CONTROL PUMP CIRCUIT OIL PRESSURE
• 5.25. TESTING AND ADJUSTING PISTON PUMP CONTROL PRESSURE
• 5.26. MEASURING SERVO PISTON STROKE
• 5.27. MEASURING PPC VALVE OUTPUT PRESSURE
• 5.28. TESTING SOLENOID VALVE OUTPUT PRESSURE
• 5.29. ADJUSTING WORK EQUIPMENT, SWING PPC VALVE
• 5.30. TESTING TRAVEL DEVIATION
• 5.31. TESTING LOCATIONS CAUSING HYDRAULIC DRIFT OF WORK EQUIPMENT
• 5.32. MEASURING OIL LEAKAGE
• 5.33. TESTING CLEARANCE OF SWING CIRCLE BEARING
• 5.34. TESTING AND ADJUSTING TRACK SHOE TENSION
• 5.35. BLEEDING AIR
• 5.36. RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT
• 5.37. PROCEDURE FOR CHECKING DIODE
• 5.38. TROUBLESHOOTING
• 5.38.1. POINTS TO REMEMBER WHEN TROUBLESHOOTING
• 5.38.2. SEQUENCE OF EVENTS IN TROUBLESHOOTING
• 5.38.3. POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE
• 5.38.4. CHECKS BEFORE TROUBLESHOOTING
• 5.38.5. CONNECTOR TYPES AND MOUNTING LOCATIONS
• 5.38.6. CONNECTION TABLE FOR CONNECTOR PIN NUMBERS
• 5.38.7. EXPLANATION OF CONTROL MECHANISM FOR ELECTRICAL SYSTEM
• 5.38.8. DISPLAY METHOD AND SPECIAL FUNCTIONS OF MONITOR PANEL
• 5.38.9. METHOD OF USING JUDGEMENT TABLE
• 5.38.10. METHOD OF USING TROUBLESHOOTING CHARTS
• 5.38.11. DETAILS OF TROUBLESHOOTING AND TROUBLESHOOTING PROCEDURE
• 5.38.12. TROUBLESHOOTING OF COMMUNICATION ABNORMALITY SYSTEM (N MODE)
• 5.38.13. TROUBLESHOOTING OF ENGINE CONTROLLER SYSTEM (E MODE)
• 5.38.14. TROUBLESHOOTING OF PUMP CONTROLLER SYSTEM (C MODE)
• 5.38.15. TROUBLESHOOTING OF ENGINE THROTTLE PUMP CONTROLLER (INPUT SIGNAL SYSTEM) (F MODE)
• 5.38.16. TROUBLESHOOTING OF HYDRAULIC, MECHANICAL SYSTEM (H MODE)
• 5.38.17. 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. SKETCHES OF SPECIAL TOOLS
• 6.5. FUEL SUPPLY PUMP
• 6.6. ENGINE FRONT SEAL
• 6.6.1. REMOVAL AND INSTALLATION
• 6.7. ENGINE REAR SEAL
• 6.7.1. REMOVAL
• 6.7.2. INSTALLATION
• 6.8. CYLINDER HEAD ASSEMBLY
• 6.8.1. REMOVAL
• 6.8.2. INSTALLATION
• 6.9. AFTERCOOLER CORE
• 6.9.1. REMOVAL, INSTALLATION
• 6.10. FAN GUARD, RADIATOR, HYDRAULIC OIL COOLER ASSEMBLY
• 6.10.1. REMOVAL
• 6.10.2. INSTALLATION
• 6.11. FUEL COOLER AND AIR CONDITIONER CONDENSER ASSEMBLY
• 6.11.1. REMOVAL, INSTALLATION
• 6.12. FUEL TANK ASSEMBLY
• 6.12.1. REMOVAL
• 6.12.2. INSTALLATION
• 6.13. ENGINE, PTO AND HYDRAULIC PUMP ASSEMBLY
• 6.14. FINAL DRIVE ASSEMBLY
• 6.14.1. DISASSEMBLY
• 6.14.2. ASSEMBLY
• 6.15. REVOLVING FRAME ASSEMBLY
• 6.15.1. REMOVAL
• 6.15.2. INSTALLATION
• 6.16. SWING MACHINERY ASSEMBLY
• 6.16.1. REMOVAL, INSTALLATION
• 6.17. SWING MACHINERY ASSEMBLY
• 6.17.1. DISASSEMBLY
• 6.17.2. ASSEMBLY
• 6.18. SWING CIRCLE ASSEMBLY
• 6.18.1. REMOVAL, INSTALLATION
• 6.19. TRACK SHOE ASSEMBLY
• 6.19.1. REMOVAL
• 6.19.2. INSTALLATION
• 6.20. ONE LINK IN FIELD
• 6.20.1. DISASSEMBLY
• 6.20.2. ASSEMBLY
• 6.21. IDLER ASSEMBLY
• 6.21.1. REMOVAL, INSTALLATION
• 6.22. IDLER ASSEMBLY
• 6.22.1. DISASSEMBLY
• 6.22.2. ASSEMBLY
• 6.23. IDLER ADJUSTMENT CYLINDER ASSEMBLY
• 6.23.1. DISASSEMBLY, ASSEMBLY
• 6.24. RECOIL SPRING ASSEMBLY
• 6.24.1. REMOVAL, INSTALLATION
• 6.25. RECOIL SPRING ASSEMBLY
• 6.25.1. DISASSEMBLY
• 6.25.2. ASSEMBLY
• 6.26. CARRIER ROLLER ASSEMBLY
• 6.26.1. REMOVAL, INSTALLATION
• 6.27. CARRIER ROLLER ASSEMBLY
• 6.27.1. DISASSEMBLY
• 6.27.2. ASSEMBLY
• 6.28. TRACK ROLLER ASSEMBLY
• 6.28.1. REMOVAL, INSTALLATION
• 6.29. TRACK ROLLER ASSEMBLY
• 6.29.1. DISASSEMBLY
• 6.29.2. ASSEMBLY
• 6.30. HYDRAULIC TANK ASSEMBLY
• 6.30.1. REMOVAL
• 6.30.2. INSTALLATION
• 6.31. MAIN PUMP (NO. 1 PUMP) ASSEMBLY
• 6.31.1. REMOVAL
• 6.31.2. INSTALLATION
• 6.32. MAIN PUMP (NO. 2 PUMP) ASSEMBLY
• 6.32.1. REMOVAL
• 6.32.2. INSTALLATION
• 6.33. MAIN PUMP INPUT SHAFT OIL SEAL
• 6.33.1. REMOVAL, INSTALLATION
• 6.34. CONTROLPTO LUBRICATION PUMP ASSEMBLY
• 6.34.1. REMOVAL, INSTALLATION
• 6.35. MAIN RELIEF VALVE ASSEMBLY
• 6.35.1. DISASSEMBLY, ASSEMBLY
• 6.36. CONTROL VALVE ASSEMBLY
• 6.36.1. REMOVAL
• 6.36.2. INSTALLATION
• 6.36.3. DISASSEMBLY
• 6.36.4. ASSEMBLY
• 6.37. SOLENOID VALVE ASSEMBLY
• 6.37.1. REMOVAL
• 6.37.2. INSTALLATION
• 6.38. BOOM DAMPING VALVE ASSEMBLY
• 6.38.1. REMOVAL, INSTALLATION
• 6.39. SWING MOTOR ASSEMBLY
• 6.39.1. REMOVAL, INSTALLATION
• 6.40. CENTER SWIVEL JOINT ASSEMBLY
• 6.40.1. REMOVAL, INSTALLATION
• 6.41. CENTER SWIVEL JOINT ASSEMBLY
• 6.41.1. DISASSEMBLY, ASSEMBLY
• 6.42. TRAVEL MOTOR ASSEMBLY
• 6.42.1. REMOVAL, INSTALLATION
• 6.43. WORK EQUIPMENT PPC VALVE ASSEMBLY
• 6.43.1. DISASSEMBLY
• 6.43.2. ASSEMBLY
• 6.44. TRAVEL PPC VAVEL ASSEMBLY
• 6.44.1. DISASSEMBLY
• 6.44.2. ASSEMBLY
• 6.45. BUCKET CYLINDER ASSEMBLY
• 6.45.1. REMOVAL
• 6.45.2. INSTALLATION
• 6.46. ARM CYLINDER ASSEMBLY
• 6.46.1. REMOVAL
• 6.46.2. INSTALLATION
• 6.47. BOOM CYLINDER ASSEMBLY
• 6.47.1. REMOVAL
• 6.47.2. INSTALLATION
• 6.48. BOTTOM DUMP CYLINDER ASSEMBLY
• 6.48.1. REMOVAL
• 6.48.2. INSTALLATION
• 6.49. HYDRAULIC CYLINDER ASSEMBLY
• 6.49.1. DISASSEMBLY
• 6.49.2. ASSEMBLY
• 6.50. BUCKET ASSEMBLY
• 6.51. WORK EQUIPMENT ASSEMBLY
• 6.51.1. REMOVAL
• 6.51.2. INSTALLATION
• 6.52. OPERATORS CAB ASSEMBLY
• 6.52.1. REMOVAL
• 6.52.2. INSTALLATION
• 6.53. COUNTERWEIGHT ASSEMBLY
• 6.53.1. REMOVAL, INSTALLATION
• 7. OTHERS
• 7.1. HYDRAULIC CIRCUIT DRAWING (BACKHOE SPECIFICATION)
• 7.2. HYDRAULIC CIRCUIT DRAWING (LOADING SHOVEL SPECIFICATION)
• 7.3. ELECTRIC CIRCUIT DIAGRAM (1/4)
• 7.4. ELECTRIC CIRCUIT DIAGRAM (2/4)
• 7.5. ELECTRIC CIRCUIT DIAGRAM (3/4)
• 7.6. ELECTRIC CIRCUIT DIAGRAM (4/4)