Komatsu WA450-3LL Log Loader Shop Manual SEBM009904

Description

• Model List:
  • WA450-3LL Log Loader

• 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. POWER TRAIN
• 4.2. POWER TRAIN SYSTEM
• 4.3. TORQUE CONVERTER, TRANSMISSION PIPING
• 4.4. TRANSMISSION HYDRAULIC SYSTEM DIAGRAM
• 4.5. TRANSMISSION HYDRAULIC CIRCUIT DIAGRAM
• 4.6. TORQUE CONVERTER
• 4.7. TORQUE CONVERTER OIL FILTER
• 4.8. TRANSMISSION
• 4.9. TRANSMISSION CONTROL VALVE
• 4.10. TRANSMISSION SOLENOID VALVE
• 4.11. PILOT OIL FILTER
• 4.12. DRIVE SHAFT
• 4.13. AXLE
• 4.14. DIFFERENTIAL
• 4.15. FINAL DRIVE
• 4.16. AXLE MOUNT,CENTER HINGE PIN
• 4.17. STEERING PIPING
• 4.18. STEERING COLUMN
• 4.19. STEERING VALVE
• 4.20. ORBITROLL VALVE
• 4.21. STOP VALVE
• 4.22. EMERGENCY STEERING PUMP (OPTION)
• 4.23. DIVERTER VALVE (OPTION)
• 4.24. BRAKE PIPING
• 4.25. BRAKE CIRCUIT DIAGRAM
• 4.26. BRAKE VALVE
• 4.27. CHARGE VALVE
• 4.28. ACCUMULATOR (FOR BRAKE)
• 4.29. SLACK ADJUSTER
• 4.30. BRAKE COOLING PIPING
• 4.31. BRAKE COOLING CIRCUIT DIAGRAM
• 4.32. BRAKE
• 4.33. BRAKE COOLING
• 4.34. PARKING BRAKE CONTROL
• 4.35. PARKING BRAKE
• 4.36. PARKING BRAKE SOLENOID VALVE
• 4.37. PARKING BRAKE VALVE
• 4.38. PARKING BRAKE EMERGENCY RELEASE SOLENOID VALVE
• 4.39. HYDRAULIC PIPING
• 4.40. WORK EQUIPMENT HYDRAULIC SYSTEM DIAGRAM
• 4.41. WORK EQUIPMENT HYDRAULIC CIRCUIT DIAGRAM
• 4.42. WORK EQUIPMENT LEVER LINKAGE
• 4.43. HYDRAULIC TANK
• 4.44. PPC VALVE
• 4.45. PPC RELIEF VALVE
• 4.46. ACCUMULATOR (FOR PPC VALVE)
• 4.47. CUTOFF VALVE
• 4.48. MAIN CONTROL VALVE
• 4.49. WORK EQUIPMENT LINKAGE
• 4.50. LOG GRAPPLE
• 4.51. FORK POSITIONER AND LIFT ARM KICKOUT
• 4.52. CAB (OPTION)
• 4.53. AIR CONDITIONER (OPTION)
• 4.54. ELECTRIC CIRCUIT DIAGRAM
• 4.55. MACHINE MONITOR SYSTEM
• 4.56. MAIN MONITOR
• 4.57. MAINTENANCE MONITOR
• 4.59. SENSORS
• 4.60. ENGINE STARTING CIRCUIT
• 4.61. ENGINE STOP CIRCUIT
• 4.62. PREHEATING CIRCUIT
• 4.63. ELECTRIC TRANSMISSION CONTROL
• 4.64. KICKDOWN SWICTH
• 4.65. KICKDOWN ELECTRIC CIRCUIT DIAGRAM
• 4.66. TRANSMISSION CUTOFF SWITCH
• 4.67. TRANSMISSION CUTOFF FUNCTION
• 4.68. ELECTRIC PARKING BRAKE CONTROL
• 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 ENGINE SPEED
• 5.6. MEASURING INTAKE AIR PRESSURE (BOOST PRESSURE)
• 5.7. ADJUSTING VALVE CLEARANCE
• 5.8. MEASURING EXHAUST COLOR
• 5.9. MEASURING EXHAUST GAS TEMPERATURE
• 5.10. MEASURING BLOWBY PRESSURE
• 5.11. MEASURING COMPRESSION PRESSURE
• 5.12. MEASURING ENGINE OIL PRESSURE
• 5.13. TESTING AND ADJUSTING FUEL INJECTION TIMING
• 5.14. METHOD FOR ADJUSTING ENGINE STOP MOTOR CABLE
• 5.15. TESTING AND ADJUSTING FAN BELT TENSION
• 5.16. MEASURING ACCELERATOR PEDAL
• 5.17. MEASURING OPERATING FORCE, TRAVEL OF SPEED LEVER
• 5.18. MEASURING STALL SPEED
• 5.19. MEASURING TORQUE CONVERTER,TRANSMISSION,PARKING BRAKE OIL PRESSURE
• 5.20. METHOD OF OPERATING EMERGENCY MANUAL SPOOL
• 5.21. MEASURING CLEARANCE BETWEEN TIRE AND WHEEL
• 5.22. TESTING AND ADJUSTING STEERING WHEEL
• 5.23. TESTING AND ADJUSTING STEERING CONTROL
• 5.24. MEASURING STEERING OIL PRESSURE
• 5.25. MEASURING OPERATING FORCE,TRAVEL OF BRAKE PEDAL
• 5.26. MEASURING BRAKE PERFORMANCE
• 5.27. TESTING BRAKE OIL PRESSRUE
• 5.28. MEASURING BRAKE DISC WEAR
• 5.29. BLEEDING AIR FROM BRAKE SYSTEM
• 5.30. BLEEDING AIR FROM BRAKE COOLING OIL LINE
• 5.31. MEASURING PARKING BRAKE PERFORMANCE
• 5.32. MANUAL RELEASE METHOD FOR PARKING BRAKE
• 5.33. TESTING WEAR OF PARKING BRAKE DISC
• 5.34. MEASURING WORK EQUIPMENT CONTROL LEVER
• 5.35. MEASURING WORK EQUIPMENT HYDRAULIC PRESSURE
• 5.36. MEASURING WORK EQUIPMENT
• 5.37. TESTING AND ADJUSTING FORK PISITIONER
• 5.38. TESTING AND ADJUSTING LIFT ARM KICKOUT
• 5.39. ADJUSTING MAIN MONITOR (SPEEDOMETER MODULE)
• 5.40. CHECKING FOR ABNORMALITY IN FUEL LEVEL SENSOR
• 5.41. TROUBLESHOOTING
• 5.41.1. POINTS TO REMEMBER WHEN TROUBLESHOOTING
• 5.41.2. SEQUENCE OF EVENTS IN TROUBLESHOOTING
• 5.41.3. PRECAUTIONS WHEN CARRYING OUT MAINTENANCE
• 5.41.4. HANDLING CONNECTORS
• 5.41.5. CHECKS BEFORE TROUBLESHOOTING
• 5.41.6. METHOD OF USING TROUBLESHOOTING CHARTS
• 5.41.7. CONNECTOR TYPES AND MOUNTING LOCATIONS
• 5.41.8. CONNECTION TABLE FOR CONNECTOR PIN NUMBERS
• 5.41.9. TROUBLESHOOTING OF ENGINE SYSTEM (S MODE)
• 5.41.10. TROUBLESHOOTING OF MAIN MONITOR SYSTEM (M MODE)
• 5.41.11. TROUBLESHOOTING OF MAINTENANCE MONITOR SYSTEM (K MODE)
• 5.41.12. TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE)
• 5.41.13. TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (CHASSIS RELATED) (T MODE)
• 5.41.14. TROUBLESHOOTING OF ECSS (ELECTRONICALLY CONTROLLED SUSPENSION SYSTEM) (D MODE) (OPTION)
• 6. DISASSEMBLY AND ASSEMBLY
• 6.1. METHOD OF USING MANUAL
• 6.2. PRECAUTIONS WHEN CARRYING OUT OPERATION
• 6.3. SPECIAL TOOL LIST
• 6.4. ENGINE OIL COOLER
• 6.4.1. REMOVAL
• 6.4.2. INSTALLATION
• 6.5. FUEL INJECTION PUMP
• 6.6. TORQUE CONVERTER, TRANSMISSION
• 6.6.1. REMOVAL
• 6.6.2. INSTALLATION
• 6.7. TORQUE CONVERTER
• 6.8. TRANSMISSION CLUTCH PACK
• 6.9. TRANSMISSION CONTROL VALVE
• 6.9.1. REMOVAL
• 6.9.2. INSTALLATION
• 6.9.3. DISASSEMBLY
• 6.9.4. ASSEMBLY
• 6.10. TRANSMISSION ACCUMULATOR VALVE
• 6.11. FRONT DIFFERENTIAL
• 6.11.1. REMOVAL
• 6.11.2. INSTALLATION
• 6.12. REAR DIFFERENTIAL
• 6.13. CENTER HINGE PIN
• 6.13.1. REMOVAL
• 6.13.2. INSTALLATION
• 6.14. STEERING VALVE (ORBITROLL)
• 6.15. STEERING DEMAND VALVE
• 6.15.1. DISASSEMBLY
• 6.15.2. ASSEMBLY
• 6.16. STEERING, SWITCH PUMP
• 6.16.1. REMOVAL
• 6.16.2. INSTALLATION
• 6.17. STEERING CYLINDER
• 6.18. RIGHT BRAKE VALVE (TANDEM)
• 6.18.1. DISASSEMBLY
• 6.18.2. ASSEMBLY
• 6.19. LEFT BRAKE VALVE (SINGLE)
• 6.20. PARKING BRAKE DISC
• 6.21. BRAKE COOLING OIL TANK
• 6.21.1. REMOVAL
• 6.21.2. INSTALLATION
• 6.22. BRAKE OIL COOLER
• 6.22.1. REMOVAL
• 6.22.2. INSTALLATION
• 6.23. WORK EQUIPMENT, PPC, BRAKE COOLING PUMP
• 6.24. MAIN CONTROL VALVE
• 6.25. LIFT ARM CYLINDER
• 6.25.1. REMOVAL
• 6.25.2. INSTALLATION
• 6.26. GRAPPLE ARM CYLINDER
• 6.26.1. REMOVAL
• 6.26.2. INSTALLATION
• 6.27. HYDRAULIC CYLINDER
• 6.28. MAINTENANCE MONITOR
• 6.28.1. REMOVAL
• 6.28.2. INSTALLATION
• 7. MAINTENANCE STANDARD
• 7.1. ENGINE MOUNT, TRANSMISSION MOUNT
• 7.2. TORQUE CONVERTER
• 7.3. TRANSMISSION
• 7.4. TRANSMISSION CONTROL VALVE
• 7.5. DRIVE SHAFT
• 7.6. DIFFERENTIAL
• 7.7. FINAL DRIVE
• 7.8. AXLE MOUNT
• 7.9. STEERING COLUMN
• 7.10. STEERING VALVE
• 7.11. STEERING CYLINDER MOUNT
• 7.12. SLACK ADJUSTER
• 7.13. BRAKE VALVE
• 7.14. BRAKE
• 7.15. PARKING BRAKE
• 7.16. TORQUE CONVERTER, TRANSMISSION PUMP
• 7.17. STEERING, SWITCH PUMP
• 7.18. HYDRAULIC, PPC PUMP
• 7.19. PPC VALVE
• 7.20. CUTOFF VALVE
• 7.21. MAIN CONTROL VALVE
• 7.22. LIFT ARM CYLINDER
• 7.23. FORK CYLINDER
• 7.24. CENTER HINGE PIN
• 7.25. WORK EQUIPMENT LINKAGE
• 7.26. FORK POSITIONER AND LIFT ARM KICKOUT
• 8. OTHERS
• 8.1. BRAKE PIPING
• 8.2. HYDRAULIC PIPING
• 8.3. WORK EQUIPMENT HYDRAULIC CIRCUIT DIAGRAM
• 8.4. ELECTRIC CIRCUIT DIAGRAM (1/4)
• 8.5. ELECTRIC CIRCUIT DIAGRAM (2/4)
• 8.6. ELECTRIC CIRCUIT DIAGRAM (3/4)
• 8.7. ELECTRIC CIRCUIT DIAGRAM (4/4)
• 8.8. ELECTRIC CIRCUIT DIAGRAM E.C.S.S.
• 8.9. CONNECTOR PIN ARRANGEMENT DIAGRAM (1/3)