Komatsu WA120-3MC Wheel Loader Shop Manual CEBM005101

Description

• Model List:
  • WA120-3MC Wheel Loader

• 0.1. GENERAL
• 0.2. HOW TO READ THE SHOP MANUAL
• 0.3. HOISTING INSTRUCTIONS
• 0.4. COATING MATERIALS
• 0.5. STANDARD TIGHTENING TORQUE
• 0.6. ELECTRIC WIRE CODE
• 0.7. CONVERSION TABLES
• 1. GENERAL
• 1.1. SPECIFICATION DRAWING
• 1.2. SPECIFICATIONS
• 1.3. WEIGHT TABLE
• 1.4. LIST OF LUBRICANT AND WATER
• 1.5. ENGINE OIL SPECIFICATIONS
• 1.6. DIESEL FUEL SPECIFICATIONS
• 1.7. COOLANT SPECIFICATIONS
• 2. STRUCTURE AND FUNCTION
• 2.1. POWER TRAIN
• 2.2. POWER TRAIN SYSTEM
• 2.3. TORQUE CONVERTER, TRANSMISSION PIPING
• 2.4. TRANSMISSION HYDRAULIC 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. TRANSMISSION CONTROL
• 2.11. DRIVE SHAFT
• 2.12. AXLE
• 2.13. FINAL DRIVE
• 2.14. AXLE MOUNT
• 2.15. CENTER HINGE PIN
• 2.16. STEERING PIPING
• 2.17. STEERING COLUMN
• 2.18. PRIORITY VALVE
• 2.19. STEERING VALVE (ORBITROLL)
• 2.20. HYDRAULIC
• 2.21. WORK EQUIPMENT
• 2.22. ROPS CAB
• 2.23. AIR CONDITIONER
• 2.24. ECSS (ELECTRONIC CONTROLLED SUSPENSION SYSTEM)
• 2.25. CENTRAL PANEL
• 2.26. SENSORS
• 2.27. ENGINE
• 2.28. AUTOMATIC PREHEATING CIRCUIT
• 2.29. TRANSMISSION AUTOSHIFT CONTROL
• 2.30. TRANSMISSION AUTOSHIFT CONTROL SYSTEM
• 2.31. ELECTRICAL WIRING ILLUSTRATION
• 2.32. ELECTRICAL WIRING DIAGRAM (1/4)
• 2.33. ELECTRICAL WIRING DIAGRAM (2/4)
• 2.34. ELECTRICAL WIRING DIAGRAM (3/4)
• 2.35. ELECTRICAL WIRING DIAGRAM (4/4)
• 3. TESTING, ADJUSTING AND TROUBLESHOOTING
• 3.1. STANDARD VALUE TABLE
• 3.2. SERVICE TOOLS TABLE
• 3.3. ENGINE COMPONENTS
• 3.4. ACCELERATOR PEDAL
• 3.5. SPEED LEVER
• 3.6. STALL SPEEDS
• 3.7. TORQUE CONVERTER OIL PRESSURE
• 3.8. TRANSMISSION OIL PRESSURE
• 3.9. EMERGENCY MANUAL SPOOL
• 3.10. STEERING WHEEL
• 3.11. STEERING OIL PRESSURE
• 3.12. BRAKE
• 3.13. PARKING BRAKE
• 3.14. WORK EQUIPMENT
• 3.15. TROUBLESHOOTING GENERAL
• 3.16. TROUBLESHOOTING ELECTRICAL CONNECTORS
• 3.17. TROUBLESHOOTING OF TRANSMISSION CONTROLLER SYSTEM (AMODE)
• 3.18. TROUBLESHOOTING ELECTRONICALLY CONTROLLED SUSPENSION SYSTEM DMODE (ECSS)
• 3.19. TROUBLESHOOTING OF ELECTRICAL SYSTEM (EMODE)
• 3.20. TROUBLESHOOTING OF ENGINE SYSTEM (SMODE)
• 3.21. TROUBLESHOOTING OF HYDRAULIC MECHANICAL SYSTEMS (TMODE)
• 3.22. TROUBLESHOOTING OF AIRCONDITIONER
• 4. DISASSEMBLY AND ASSEMBLY
• 4.1. METHOD OF USING MANUAL
• 4.2. PRECAUTIONS DURING OPERATION
• 4.3. SPECIAL TOOL LIST
• 4.4. ENGINE COMPONENTS
• 4.5. COVERS AND LADDER
• 4.6. EXHAUST MUFFLER
• 4.7. AIR CLEANER
• 4.8. TORQUE CONVERTER CHARGING PUMP
• 4.9. TORQUE CONVERTER, TRANSMISSION
• 4.10. TORQUE CONVERTER
• 4.11. TRANSMISSION
• 4.12. TRANSMISSION CLUTCH PACK
• 4.13. TRANSMISSION CONTROL VALVE
• 4.14. TRANSMISSION SOLENOID VALVE
• 4.15. TRANSMISSION ACCUMULATOR VALVE
• 4.16. CENTER HINGE PIN
• 4.17. MAIN CONTROL VALVE
• 4.18. PPC VALVE TO MAIN CONTROL VALVE HYDRAULIC LINES
• 4.19. PPC VALVE
• 4.20. STEERING CYLINDER
• 4.21. HYDRAULIC FILTER
• 4.22. STEERING PUMP
• 4.23. BUCKET CYLINDER
• 4.24. BOOM CYLINDER
• 4.25. HYDRAULIC CYLINDER
• 4.26. ECSS SYSTEM
• 4.27. INSTRUMENT PANEL
• 4.28. AIR CONDITIONING
• 5. MAINTENANCE STANDARD
• 5.1. ENGINE MOUNT, TRANSMISSION MOUNT
• 5.2. TORQUE CONVERTER CHARGING PUMP
• 5.3. TORQUE CONVERTER
• 5.4. TRANSMISSION
• 5.5. TRANSMISSION CONTROL VALVE
• 5.6. ACCUMULATOR VALVE
• 5.7. DRIVE SHAFT
• 5.8. DIFFERENTIAL
• 5.9. FINAL DRIVE
• 5.10. AXLE MOUNT
• 5.11. ADDITIONAL COUNTERWEIGHT
• 5.12. CENTER HINGE PIN
• 5.13. STEERING COLUMN
• 5.14. PRIORITY VALVE
• 5.15. STEERING CYLINDER MOUNT
• 5.16. BRAKE BOOSTER
• 5.17. BRAKE
• 5.18. PARKING BRAKE
• 5.19. HYDRAULIC PUMP, SAL45SB(1)8
• 5.20. MAIN CONTROL VALVE
• 5.21. PPC VALVE
• 5.22. HYDRAULIC CYLINDER
• 5.23. WORK EQUIPMENT LINKAGE
• 5.24. BUCKET
• 5.25. BUCKET POSITIONER AND BOOM KICKOUT
• 6. OTHERS
• 6.1. AIR CONDITIONING AND HEATER ELETRICAL DIAGRAM
• 6.2. ELECTRICAL WIRING DIAGRAM