Komatsu PC450-6K, PC450LC-6K Hydraulic Excavator Shop Manual EEBM001304

Description

• Model List:
  • PC450-6K Hydraulic Excavator
  • PC450LC-6K 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
• 1. GENERAL
• 1.1. SPECIFICATION DRAWINGS
• 1.2. SPECIFICATIONS
• 1.3. WEIGHT TABLE
• 1.4. FUEL, COOLANT AND LUBRICANTS
• 2. STRUCTURE AND FUNCTION
• 2.1. PARTS RELATED TO ENGINE
• 2.2. RADIATOR, OIL COOLER
• 2.3. POWER TRAIN
• 2.4. FINAL DRIVE
• 2.5. SWING CIRCLE
• 2.6. SWING MACHINERY
• 2.7. TRACK FRAME, RECOIL SPRING
• 2.8. TRACK SHOE
• 2.9. HYDRAULIC PIPING DRAWING
• 2.10. HYDRAULIC CIRCUIT DIAGRAM
• 2.11. HYDRAULIC TANK, HYDRAULIC FILTER
• 2.12. HYDRAULIC PUMP
• 2.13. CONTROL VALVE
• 2.14. SUCTION SAFETY VALVE
• 2.15. CLSS
• 2.16. SWING MOTOR
• 2.17. CENTER SWIVEL JOINT
• 2.18. TRAVEL MOTOR
• 2.19. VALVE CONTROL
• 2.20. WORK EQUIPMENT, SWING PPC VALVE
• 2.21. TRAVEL PPC VALVE
• 2.22. SERVICE PPC VALVE
• 2.23. PPC SAFETY LOCK VALVE
• 2.24. PPC ACCUMULATOR
• 2.25. PPC SHUTTLE VALVE, TRAVEL JUNCTION VALVE
• 2.26. EPC SOLENOID VALVE
• 2.27. BOOM SAFETY VALVE
• 2.28. HYDRAULIC CYLINDER
• 2.29. OVERLOAD WARNING DEVICE
• 2.30. WORK EQUIPMENT
• 2.31. ACTUAL ELECTRIC WIRING DIAGRAM
• 2.32. ELECTRIC CIRCUIT DIAGRAM
• 2.33. ENGINE CONTROL
• 2.34. ELECTRONIC CONTROL SYSTEM
• 2.35. MACHINE MONITOR SYSTEM
• 2.36. BREAKER MODE HYDRAULIC PERFORMANCE
• 3. TESTING AND ADJUSTING
• 3.1. STANDARD VALUE TABLE FOR ENGINE RELATED PARTS
• 3.2. STANDARD VALUE TABLE FOR CHASSIS RELATED PARTS
• 3.3. STANDARD VALUE TABLE FOR ELECTRICAL PARTS
• 3.4. TOOLS FOR TESTING, ADJUSTING, AND TROUBLESHOOTING
• 3.5. MEASURING EXHAUST COLOR
• 3.6. VALVES AND INJECTORS
• 3.7. MEASURING BLOWBY PRESSURE
• 3.8. TESTING AND ADJUSTING FUEL INJECTION TIMING
• 3.9. MEASURING ENGINE OIL PRESSURE
• 3.10. TESTING AND ADJUSTING FAN BELT TENSION
• 3.11. TESTING AND ADJUSTING BELT TENSION FOR AIR CONDITIONER COMPRESSOR
• 3.12. ADJUSTING ENGINE SPEED SENSOR
• 3.13. MEASURING AIR SUPPLY PRESSURE (BOOST PRESSURE)
• 3.14. TESTING AND ADJUSTING GOVERNOR MOTOR LEVER STROKE
• 3.15. TESTING AND ADJUSTING HYDRAULIC PRESSURE IN WORK EQUIPMENT, SWING, TRAVEL CIRCUIT
• 3.16. TESTING AND ADJUSTING TVC VALVE OUTPUT PRESSURE (SERVO PISTON INPUT PRESSURE)
• 3.17. TESTING AND ADJUSTING LS VALVE OUTPUT PRESSURE (SERVO PISTON INPUT PRESSURE) AND LS DIFFERENTIAL PRESSURE
• 3.18. TESTING AND ADJUSTING CONTROL PUMP CIRCUIT OIL PRESSURE
• 3.19. TESTING SOLENOID VALVE OUTPUT PRESSURE
• 3.20. MEASURING PPC VALVE OUTPUT PRESSURE AND TESTING PPC SHUTTLE VALVE
• 3.21. ADJUSTING WORK EQUIPMENT, SWING PPC VALVE
• 3.22. TESTING TRAVEL DEVIATION
• 3.23. TESTING LOCATIONS CAUSING HYDRAULIC DRIFT OF WORK EQUIPMENT
• 3.24. MEASURING OIL LEAKAGE
• 3.25. RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT
• 3.26. TESTING CLEARANCE OF SWING CIRCLE BEARING
• 3.27. TESTING AND ADJUSTING TRACK SHOE TENSION
• 3.28. BLEEDING AIR
• 3.29. TROUBLESHOOTING
• 4. DISASSEMBLY AND ASSEMBLY
• 4.1. METHOD OF USING MANUAL
• 4.2. PRECAUTIONS WHEN CARRYING OUT OPERATION
• 4.3. SPECIAL TOOL LIST
• 4.4. SKETCHES OF SPECIAL TOOLS
• 4.5. STARTING MOTOR ASSEMBLY
• 4.6. ALTERNATOR ASSEMBLY
• 4.7. NOZZLE HOLDER ASSEMBLY
• 4.8. THERMOSTAT ASSEMBLY
• 4.9. CYLINDER HEAD ASSEMBLY
• 4.10. HYDRAULIC COOLER ASSEMBLY
• 4.11. RADIATOR, HYDRAULIC COOLER ASSEMBLY
• 4.12. ENGINE, MAIN PUMP ASSEMBLY
• 4.13. DAMPER ASSEMBLY
• 4.14. FUEL TANK ASSEMBLY
• 4.15. CENTER SWIVEL JOINT ASSEMBLY
• 4.16. FINAL DRIVE ASSEMBLY
• 4.17. TRAVEL MOTOR ASSEMBLY
• 4.18. SPROCKET
• 4.19. SWING MOTOR ASSEMBLY
• 4.20. SWING MACHINERY ASSEMBLY
• 4.21. REVOLVING FRAME ASSEMBLY
• 4.22. SWING CIRCLE ASSEMBLY
• 4.23. IDLER, RECOIL SPRING ASSEMBLY
• 4.24. IDLER ASSEMBLY
• 4.25. RECOIL SPRING ASSEMBLY
• 4.26. TRACK ROLLER ASSEMBLY
• 4.27. CARRIER ROLLER ASSEMBLY
• 4.28. TRACK SHOE ASSEMBLY
• 4.29. HYDRAULIC TANK ASSEMBLY
• 4.30. CONTROL PUMP ASSEMBLY
• 4.31. MAIN PUMP ASSEMBLY
• 4.32. MAIN PUMP INPUT SHAFT OIL SEAL
• 4.33. CONTROL VALVE ASSEMBLY
• 4.34. PUMP MERGE/DEVIDER VALVE ASSEMBLY
• 4.35. PRESSURE COMPENSATION VALVE ASSEMBLY
• 4.36. SERVO VALVE ASSEMBLY FOR FRONT PUMP
• 4.37. SERVO VALVE ASSEMBLY FOR REAR PUMP
• 4.38. LSEPC SOLENOID VALVE ASSEMBLY
• 4.39. SOLENOID VALVE ASSEMBLY
• 4.40. WORK EQUIPMENT PPC VALVE ASSEMBLY
• 4.41. TRAVEL PPC VALVE ASSEMBLY
• 4.42. PPC SHUTTLE VALVE ASSEMBLY
• 4.43. BOOM CYLINDER ASSEMBLY
• 4.44. ARM CYLINDER ASSEMBLY
• 4.45. BUCKET CYLINDER ASSEMBLY
• 4.46. HYDRAULIC CYLINDER ASSEMBLY
• 4.47. WORK EQUIPMENT ASSEMBLY
• 4.48. BUCKET ASSEMBLY
• 4.49. ARM ASSEMBLY
• 4.50. BUCKET, ARM ASSEMBLY
• 4.51. BOOM ASSEMBLY
• 4.52. OPERATORS CAB ASSEMBLY
• 4.53. COUNTERWEIGHT ASSEMBLY
• 4.54. GOVERNOR, PUMP CONTROLLER ASSEMBLY
• 4.55. MONITOR PANEL ASSEMBLY
• 4.56. CONTROL STAND CASE
• 5. MAINTENANCE STANDARD
• 5.1. SWING MACHINERY
• 5.2. SWING CIRCLE
• 5.3. FINAL DRIVE
• 5.4. TRACK FRAME AND RECOIL SPRING
• 5.5. CONTROL PUMP AND RELIEF VALVE
• 5.6. CONTROL VALVE
• 5.7. SUCTION SAFETY VALVE
• 5.8. SWING MOTOR
• 5.9. TRAVEL MOTOR
• 5.10. WORK EQUIPMENT, SWING PPC VALVE
• 5.11. TRAVEL PPC VALVE
• 5.12. SERVICE PPC VALVE
• 5.13. PPC SHUTTLE VALVE, TRAVEL JUNCTION
• 5.14. EPC SOLENOID VALVE
• 5.15. CENTER SWIVEL JOINT
• 5.16. HYDRAULIC CYLINDER
• 5.17. WORK EQUIPMENT
• 5.18. DIMENSIONS OF WORK EQUIPMENT