Komatsu WA900-3 Avance Wheel Loader Shop Manual SEBM013516

Description

• Model List:
  • WA900-3 Avance Wheel 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. ENGINE CONTROL
• 4.4. SERVO CYLINDER
• 4.5. RADIATOR AND COOLER
• 4.6. DAMPER
• 4.7. TORQUE CONVERTER AND TRANSMISSION PIPING
• 4.8. TRANSMISSION HYDRAULIC SYSTEM DIAGRAM
• 4.9. TRANSMISSION HYDRAULIC CIRCUIT DIAGRAM
• 4.10. TORQUE CONVERTER
• 4.11. TRANSMISSION
• 4.12. TRANSFER
• 4.13. TRANSMISSION CONTROL VALVE
• 4.14. TORQUE CONVERTOR OIL COOLER
• 4.15. CENTER HINGE PIN
• 4.16. TIRE AND WHEEL
• 4.17. STEERING PIPING DIAGRAM
• 4.18. STEERING COLUMN
• 4.19. JOYSTICK LINKAGE
• 4.20. STEERING PUMP
• 4.21. SWITCH PUMP
• 4.22. STEERING DEMAND VALVE
• 4.23. STEERING UNIT (ORBITROLL VALVE)
• 4.24. PROPORTIONAL SOLENOID VALVE
• 4.25. EPC VALVE
• 4.26. ROTARY VALVE
• 4.27. TOWWAY RESTRICTOR VALVE
• 4.28. DIVERTER VALVE
• 4.29. BRAKE PIPING
• 4.30. BRAKE CIRCUIT DIAGRAM
• 4.31. BRAKE VALVE
• 4.32. CHARGE VALVE
• 4.33. ACCUMULATOR (FOR BRAKE)
• 4.34. SLACK ADJUSTER
• 4.35. BRAKE
• 4.36. PARKING BRAKE
• 4.37. SPRING CYLINDER
• 4.38. PARKING BRAKE SOLENOID VALVE
• 4.39. HYDRAULIC PIPING
• 4.40. WORK EQUIPMENT HYDRAULIC CIRCUIT DIAGRAM
• 4.41. WORK EQUIPMENT LEVER LINKAGE
• 4.42. HYDRAULIC TANK
• 4.43. MAIN PISTON PUMP
• 4.44. ES VALVE (ENGINE SENSING VALVE)
• 4.45. SERVO VALVE
• 4.46. PPC VALVE (PROPORTIONAL PRESSURE VALVE)
• 4.47. PPC RELIEF VALVE
• 4.48. ACCUMULATOR (FOR PPC VALVE)
• 4.49. MAIN CONTROL VALVE
• 4.50. COOLING FAN HYDRAULIC PIPING
• 4.51. COOLING FAN HYDRAULIC CIRCUIT DIAGRAM
• 4.52. PRIORITY VALVE
• 4.53. COOLING FAN MOTOR
• 4.54. LUBRICATION OF WORK EQUIPMENT
• 4.55. WORK EQUIPMENT LINKAGE
• 4.56. BUCKET POSITIONER AND BOOM KICKOUT
• 4.57. OPERATION OF PROXIMITY SWITCH
• 4.59. ROPS CANOPY
• 4.60. AIR CONDITIONER
• 4.61. ELECTRIC CIRCUIT DIAGRAM
• 4.62. MACHINE MONITOR SYSTEM
• 4.63. MAIN MONITOR
• 4.64. MAINTENANCE MONITOR
• 4.65. MULTI MONITOR SYSTEM (IF EQUIPPED)
• 4.66. ENGINE STARTING CIRCUIT
• 4.67. ENGINE STOP CIRCUIT
• 4.68. PREHEATING CIRCUIT
• 4.69. ELECTRICAL TRANSMISSION CONTROL
• 4.70. KICKDOWN, HOLD SWITCH
• 4.71. JOYSTICK STEERING SYSTEM
• 4.72. TRANSMISSION AND JOYSTICK STEERING CONTROLLER
• 4.73. AJSS (ADVANCED JOYSTICK STEERING SYSTEM)
• 4.74. TRANSMISSION AND JOYSTICK STEERING CONTROLLER
• 4.75. ELECTRIC PARKING BRAKE CONTROL
• 4.76. BRAKE COOLING SYSTEM (IF EQUIPPED)
• 4.77. SPECIFICATION
• 4.78. EMERGENCY ENGINE STOP (FOR RIO TINTO)
• 4.79. HYDRAULIC OIL LEVEL SENSOR (FOR RIO TINTO)
• 4.80. BATTERY AND STARTER ISOLATOR, BATTERY JUMP START (FOR RIO TINTO)
• 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. TESTING AND ADJUSTING
• 5.5. TROUBLESHOOTING
• 6. DISASSEMBLY AND ASSEMBLY
• 6.1. HOW TO READ THIS MANUAL
• 6.2. STANDARD TIGHTENING TORQUE TABLE
• 6.3. PRECAUTIONS WHEN CARRYING OUT OPERATION
• 6.4. METHOD OF DISASSEMBLING AND CONNECTING PUSHPULL TYPE COUPLER
• 6.5. COATING MATERIALS LIST
• 6.6. SPECIAL TOOL LIST
• 6.7. SKETCHES OF SPECIAL TOOLS
• 6.8. STARTING MOTOR
• 6.9. ALTERNATOR
• 6.10. ENGINE OIL COOLER
• 6.11. FUEL INJECTION PUMP FOR LEFT BANK
• 6.12. FUEL INJECTION PUMP FOR RIGHT BANK
• 6.13. WATER PUMP
• 6.14. NOZZLE HOLDER
• 6.15. TURBOCHARGER
• 6.16. ENGINE FRONT SEAL
• 6.17. ENGINE REAR SEAL
• 6.18. TORQUE CONVERTER AND TRANSMISSION ASSEMBLY
• 6.19. TORQUE CONVERTER
• 6.20. TORQUE CONVERTER VALVE
• 6.21. TRANSMISSION
• 6.22. TRANSMISSION VALVE
• 6.23. EMERGENCY STEERING PUMP
• 6.24. DIVERTER VALVE
• 6.25. ACCUMULATOR CHARGE VALVE
• 6.26. STEERING STOP VALVE
• 6.27. STEERING CYLINDER
• 6.28. STEERING VALVE
• 6.29. BRAKE VALVE
• 6.30. SLACK ADJUSTER
• 6.31. BRAKE
• 6.32. PARKING BRAKE CALIPERS
• 6.33. PARKING BRAKE PAD
• 6.34. PARKING BRAKE SPRING CYLINDER
• 6.35. BRAKE OIL TANK
• 6.36. HYDRAULIC PUMP
• 6.37. SERVO CYLINDER
• 6.38. HYDRAULIC TANK AND FILTER CASE ASSEMBLY
• 6.39. PPC VALVE
• 6.40. WORK EQUIPMENT CONTROL VALVE
• 6.41. CENTER HINGE PIN
• 6.42. WORK EQUIPMENT
• 6.43. BOOM FRONT END BUSH
• 6.44. BUCKET CYLINDER
• 6.45. LIFT CYLINDER
• 6.46. HYDRAULIC CYLINDER
• 6.47. AIR CONDITIONER UNIT
• 6.48. AIR CONDITIONER COMPRESSOR
• 6.49. RECEIVER TANK
• 6.50. AIR CONDITIONER CONDENSER
• 6.51. TRANSMISSION AND STEERING CONTROLLER
• 7. MAINTENANCE STANDARD
• 7.1. ENGINE MOUNT
• 7.2. TRANSMISSION MOUNT
• 7.3. DAMPER
• 7.4. TORQUE CONVERTER CHARGING, PPC AND BRAKE PUMP
• 7.5. TORQUE CONVERTER
• 7.6. TORQUE CONVERTER REGULATOR VALVE
• 7.7. TRANSMISSION
• 7.8. TRANSFER
• 7.9. TRANSMISSION CONTROL VALVE
• 7.10. CENTER HINGE PIN
• 7.11. STEERING COLUMN
• 7.12. STEERING DEMAND VALVE
• 7.13. DIVERTER VALVE
• 7.14. STEERING CYLINDER MOUNT
• 7.15. EMERGENCY STEERING PUMP
• 7.16. PPC RELIEF VALVE
• 7.17. STEERING PUMP
• 7.18. SWITCH PUMP
• 7.19. MAIN PISTON PUMP
• 7.20. CONTROL PUMP (BAR025)
• 7.21. COOLING FAN MOTOR
• 7.22. MAIN CONTROL VALVE
• 7.23. HYDRAULIC CYLINDER
• 7.24. BUCKET LINKAGE
• 7.25. BUCKET POSITIONER AND BOOM KICKOUT
• 7.26. BRAKE COOLING PUMP
• 8. OTHERS
• 8.1. ELECTRIC CIRCUIT DIAGRAM 1/22
• 8.2. ELECTRIC CIRCUIT DIAGRAM 2/22
• 8.3. ELECTRIC CIRCUIT DIAGRAM 3/22
• 8.4. ELECTRIC CIRCUIT DIAGRAM 4/22
• 8.5. ELECTRIC CIRCUIT DIAGRAM 5/22
• 8.6. ELECTRIC CIRCUIT DIAGRAM 6/22
• 8.7. ELECTRIC CIRCUIT DIAGRAM 7/22
• 8.8. ELECTRIC CIRCUIT DIAGRAM 8/22
• 8.9. ELECTRIC CIRCUIT DIAGRAM 9/22
• 8.10. ELECTRIC CIRCUIT DIAGRAM 10/22
• 8.11. ELECTRIC CIRCUIT DIAGRAM 11/22
• 8.12. ELECTRIC CIRCUIT DIAGRAM 12/22
• 8.13. ELECTRIC CIRCUIT DIAGRAM 13/22
• 8.14. ELECTRIC CIRCUIT DIAGRAM 14/22
• 8.15. ELECTRIC CIRCUIT DIAGRAM 15/22
• 8.16. ELECTRIC CIRCUIT DIAGRAM 16/22
• 8.17. ELECTRIC CIRCUIT DIAGRAM 17/22
• 8.18. ELECTRIC CIRCUIT DIAGRAM 18/22
• 8.19. ELECTRIC CIRCUIT DIAGRAM 19/22
• 8.20. ELECTRIC CIRCUIT DIAGRAM 20/22
• 8.21. ELECTRIC CIRCUIT DIAGRAM 21/22
• 8.22. ELECTRIC CIRCUIT DIAGRAM 22/22
• 8.23. WITH ELECTRONIC GOVERNOR