Komatsu WA450-3 Wheel Loader Shop Manual CEBM003602

Description

• Model List:
  • WA450-3 Wheel Loader

• 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 TABLES
• 1. GENERAL
• 1.1. SPECIFICATION DRAWING
• 1.2. SPECIFICATIONS
• 1.3. WEIGHT TABLE
• 1.4. PROPER SELECTION OF FUEL, COOLANT AND LUBRICANTS
• 2. STRUCTURE AND FUNCTION
• 2.1. POWER TRAIN
• 2.2. POWER TRAIN SYSTEM
• 2.3. TORQUE CONVERTER, TRANSMISSION PIPING
• 2.4. TRANSMISSION SYSTEM DIAGRAM
• 2.5. TRANSMISSION HYDRAULIC CIRCUIT DIAGRAM
• 2.6. TORQUE CONVERTER
• 2.7. TORQUE CONVERTER OIL FILTER
• 2.8. TRANSMISSION
• 2.9. TRANSMISSION CONTROL VALVE
• 2.10. DRIVE SHAFT
• 2.11. FRONT AXLE
• 2.12. REAR AXLE
• 2.13. DIFFERENTIAL
• 2.14. LIMITED SLIP DIFFERENTIAL
• 2.15. FINAL DRIVE
• 2.16. AXLE MOUNT, CENTER HINGE PIN
• 2.17. STEERING PIPING
• 2.18. STEERING COLUMN
• 2.19. STEERING VALVE
• 2.20. STEERING CONTROL VALVE
• 2.21. STOP VALVE
• 2.22. GROUND DRIVEN STEERING PUMP
• 2.23. DIVERTER VALVE
• 2.24. BRAKE PIPING
• 2.25. BRAKE CIRCUIT DIAGRAM
• 2.26. BRAKE VALVE
• 2.27. ACCUMULATOR CHARGE VALVE
• 2.28. ACCUMULATOR
• 2.29. SLACK ADJUSTER
• 2.30. BRAKE
• 2.31. PARKING BRAKE CONTROL
• 2.32. PARKING BRAKE
• 2.33. PARKING BRAKE SOLENOID VALVE
• 2.34. PARKING BRAKE VALVE
• 2.35. PARKING BRAKE EMERGENCY RELEASE SOLENOID VALVE
• 2.36. HYDRAULIC PIPING
• 2.37. WORK EQUIPMENT HYDRAULIC SYSTEM DIAGRAM
• 2.38. WORK EQUIPMENT HYDRAULIC CIRCUIT DIAGRAM
• 2.39. WORK EQUIPMENT LEVER LINKAGE
• 2.40. HYDRAULIC TANK
• 2.41. PPC VALVE
• 2.42. PPC RELIEF VALVE
• 2.43. PPC VALVE ACCUMULATOR
• 2.44. CUT OFF VALVE
• 2.45. MAIN CONTROL VALVE TWO SPOOL 1/2
• 2.46. MAIN CONTROL VALVE THREE SPOOL 1/2
• 2.47. MAIN CONTROL VALVE
• 2.48. WORK EQUIPMENT LINKAGE
• 2.49. BUCKET
• 2.50. BUCKET POSITIONER AND BOOM KICK OUT
• 2.51. ROPS CAB
• 2.52. HEATER AND DEFROSTER
• 2.53. AIR CONDITIONER
• 2.54. ELECTRIC CIRCUIT DIAGRAM
• 2.55. MACHINE MONITOR SYSTEM
• 2.56. MAIN MONITOR
• 2.57. MAINTENANCE MONITOR
• 2.58. TRANSMISSION AUTO SHIFT
• 2.59. LOAD METER SYSTEM
• 2.60. ECSS
• 2.61. SENSORS
• 2.62. ENGINE START CIRCUIT
• 2.63. ENGINE STOP CIRCUIT
• 2.64. PREHEATING CIRCUIT
• 2.65. ELECTRIC TRANSMISSION CONTROL
• 2.66. KICK DOWN, HOLD SWITCH
• 2.67. KICK DOWN CIRCUIT DIAGRAM
• 2.68. TRANSMISSION CUT OFF SWITCH
• 2.69. TRANSMISSION CUT OFF FUNCTION
• 2.70. ELECTRIC PARKING BRAKE CONTROL
• 3. TESTING AND ADJUSTING
• 3.1. STANDARD VALUE TABLES FOR ENGINE
• 3.2. STANDARD VALUE FOR CHASSIS
• 3.3. STANDARD VALUE TABLES FOR ELECTRICAL PARTS
• 3.4. TESTING AND ADJUSTING
• 3.5. TROUBLESHOOTING
• 3.6. TROUBLESHOOTING OF ENGINE SYSTEM S MODE
• 3.7. TROUBLESHOOTING OF MAIN MONITOR SYSTEM M MODE
• 3.8. TROUBLESHOOTING OF MAINTENANCE MONITOR SYSTEM K MODE
• 3.9. TROUBLESHOOTING OF ELECTRICAL SYSTEM E MODE
• 3.10. TROUBLESHOOTING OF TRANSMISSION CONTROLLER SYSTEM A MODE
• 3.11. TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM T MODE
• 3.12. TROUBLESHOOTING OF ECSS E MODE
• 4. DISASSEMBLY AND ASSEMBLY
• 4.1. HOW TO USE THIS MANUAL
• 4.2. PRECAUTIONS DURING OPERATION
• 4.3. SPECIAL TOOL LIST
• 4.4. ENGINE COMPONENTS
• 4.5. TORQUE CONVERTER, TRANSMISSION
• 4.6. TORQUE CONVERTER
• 4.7. TRANSMISSION
• 4.8. TRANSMISSION CLUTCH PACK
• 4.9. PARKING BRAKE
• 4.10. TRANSMISSION CONTROL VALVE
• 4.11. TRANSMISSION ACCUMULATOR VALVE
• 4.12. DRIVE SHAFT ASSEMBLY
• 4.13. FRONT DIFFERENTIAL
• 4.14. REAR DIFFERENTIAL
• 4.15. CENTER HINGE PIN
• 4.16. STEERING VALVE (ORIBITROL)
• 4.17. STEERING DEMAND VALVE
• 4.18. STEERING AND SWITCH PUMP
• 4.19. STEERING CYLINDER
• 4.20. BRAKE VALVE
• 4.21. RIGHT BRAKE VALVE (TANDEM)
• 4.22. LEFT BRAKE VALVE (SINGLE)
• 4.23. PARKING BRAKE DISC
• 4.24. ACCUMULATOR CHARGE VALVE
• 4.25. HYDRAULIC TANK
• 4.26. WORK EQUIPMENT, PPC PUMP ASSEMBLY
• 4.27. PPC VALVE ASSEMBLY
• 4.28. MAIN CONTROL VALVE
• 4.29. HYDRAULIC CYLINDERS
• 4.30. WORK EQUIPMENT
• 4.31. MAINTENANCE MONITOR
• 4.32. AIR CONDITIONER UNIT
• 4.33. AIR CONDITIONER CONDENSER
• 4.34. RECEIVERDRIER
• 4.35. AIR CONDITIONER COMPRESSOR
• 5. MAINTENANCE STANDARD
• 5.1. ENGINE AND TRANSMISSION MOUNT
• 5.2. TORQUE CONVERTER
• 5.3. TRANSMISSION
• 5.4. FORWARD, 1ST CLUTCH
• 5.5. REVERSE, 2ND CLUTCH
• 5.6. D, 4TH CLUTCH
• 5.7. TRANSMISSION VALVES
• 5.8. LIMITED SLIP DIFFERENTIAL
• 5.9. FINAL DRIVE
• 5.10. STEERING COLUMN
• 5.11. STEERING VALVE
• 5.12. STEERING CYLINDER MOUNT
• 5.13. SLACK ADJUSTER
• 5.14. LEFT BRAKE VALVE
• 5.15. RIGHT BRAKE VALVE
• 5.16. BRAKE
• 5.17. PARKING BRAKE
• 5.18. TORQUE CONVERTER, TRANSMISSION PUMP
• 5.19. STEERING, SWITCH PUMP
• 5.20. EQUIPMENT, PPC PUMP
• 5.21. SPOOL CONTROL VALVE
• 5.22. SPOOL CONTROL VALVE
• 5.23. PPC VALVE
• 5.24. CUT OFF VALVE
• 5.25. CENTER HINGE PIN
• 5.26. WORK EQUIPMENT LINKAGE
• 5.27. BOOM CYLINDER
• 5.28. BUCKET CYLINDER
• 5.29. STEERING CYLINDER
• 5.30. BUCKET
• 5.31. BUCKET POSITIONER AND BOOM KICK OUT
• 6. OTHERS
• 6.1. ELECTRICAL CIRCUIT DIAGRAM (1 OF 4)
• 6.2. ELECTRICAL CIRCUIT DIAGRAM (2 OF 4)
• 6.3. ELECTRICAL CIRCUIT DIAGRAM (3 OF 4)
• 6.4. ELECTRICAL CIRCUIT DIAGRAM (4 OF 4)