Komatsu WA120-3 Wheel Loader Shop Manual SEBM018300
Komatsu WA120-3 Wheel Loader Shop Manual SEBM018300 - Image 2
Komatsu WA120-3 Wheel Loader Shop Manual SEBM018300 - Image 3
Komatsu WA120-3 Wheel Loader Shop Manual SEBM018300 - Image 4
Komatsu WA120-3 Wheel Loader Shop Manual SEBM018300 - Image 5

Komatsu WA120-3 Wheel Loader Shop Manual SEBM018300

$50.00

  • Type Of Manual: Shop Manual
  • Manual ID: SEBM018300
  • Format: PDF
  • Size: 41.5MB
  • Number of Pages: 533
Category:

Description

  • Model List:

    • WA120-3 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. TORQUE CONVERTER, TRANSMISSION PIPING
  • 4.4. TRANSMISSION HYDRAULIC SYSTEM DIAGRAM
  • 4.5. TRANSMISSION HYDRAULIC CIRCUIT DIAGRAM
  • 4.6. TORQUE CONVERTER
  • 4.7. TRANSMISSION
  • 4.8. TRANSMISSION CONTROL VALVE
  • 4.9. TRANSMISSION CONTROL
  • 4.10. DRIVE SHAFT
  • 4.11. AXLE
  • 4.12. FINAL DRIVE
  • 4.13. AXLE MOUNT
  • 4.14. CENTER HINGE PIN
  • 4.15. STEERING PIPING
  • 4.16. STEERING COLUMN
  • 4.17. PRIORITY VALVE
  • 4.18. STEERING VALVE (ORBITROLL)
  • 4.19. EMERGENCY STEERING PUMP
  • 4.20. SECURITY VALVE
  • 4.21. DIVERTER VALVE
  • 4.22. OPERATION OF EMERGENCY STEERING CIRCUIT
  • 4.23. BRAKE PIPING
  • 4.24. BRAKE CONTROL
  • 4.25. BRAKE BOOSTER
  • 4.26. BRAKE
  • 4.27. PARKING BRAKE CONTROL
  • 4.28. PARKING BRAKE
  • 4.29. HYDRAULIC PIPING
  • 4.30. WORK EQUIPMENT HYDRAULIC SYSTEM DIAGRAM
  • 4.31. WORK EQUIPMENT HYDRAULIC CIRCUIT DIAGRAM
  • 4.32. HYDRAULIC TANK
  • 4.33. MAIN CONTROL VALVE
  • 4.34. WORK EQUIPMENT LEVEL LINKAGE
  • 4.35. WORK EQUIPMENT LINKAGE
  • 4.36. BUCKET
  • 4.37. BUCKET POSITIONER AND BOOM KICKOUT
  • 4.38. PROXIMITY SWITCH
  • 4.39. CANOPY
  • 4.40. ROPS CAB
  • 4.41. AIR CONDITIONER
  • 4.42. TRAVEL DAMPER SYSTEM (OPTION)
  • 4.43. ELECTRICAL WIRING DIAGRAM
  • 4.44. CENTRAL PANEL
  • 4.45. ENGINE STARTING CIRCUIT
  • 4.46. ENGINE STOP CIRCUIT
  • 4.47. FUEL CUTOFF SOLENOID
  • 4.48. AUTOMATIC PREHEATING CIRCUIT
  • 4.49. ELECTRICAL TRANSMISSION CONTROL
  • 4.50. COMBINATION SWITCH
  • 4.51. TRANSMISSION CUTOFF FUNCTION
  • 4.52. PARKING BRAKE NEUTRALIZER RELAY FUNCTION
  • 4.53. KICKDOWN SWITCH, HOLD SWITCH
  • 4.54. KICKDOWN ELECTRICAL CIRCUIT
  • 5. TESTING AND ADJUSTING
  • 5.1. STANDARD VALUE TABLE FOR ENGINE
  • 5.2. STANDARD VALUE TABLE FOR CHASSIS
  • 5.3. TOOLS FOR TESTING, ADJUSTING, AND TROUBLESHOOTING
  • 5.4. ADJUSTING VALVE CLEARANCE
  • 5.5. TESTING AND ADJUSTING FUEL INJECTION TIMING
  • 5.6. MEASURING EXHAUST COLOR
  • 5.7. MEASURING BLOWBY PRESSURE
  • 5.8. MEASURING ENGINE OIL PRESSURE
  • 5.9. MEASURING ENGINE SPEED
  • 5.10. ADJUSTING ENGINE STOP SOLENOID
  • 5.11. MEASURING ACCELERATOR PEDAL
  • 5.12. MEASURING OPERATING FORCE, TRAVEL OF SPEED LEVER
  • 5.13. MEASURING STALL SPEED
  • 5.14. MEASURING TORQUE CONVERTER, TRANSMISSION, OIL PRESSURE
  • 5.15. METHOD OF OPERATING EMERGENCY MANUAL SOLENOID VALVE
  • 5.16. TESTING AND ADJUSTING STEERING WHEEL
  • 5.17. MEASURING STEERING OIL PRESSURE
  • 5.18. MEASURING OPERATING FORCE, TRAVEL OF BRAKE PEDAL
  • 5.19. TESTING AND ADJUSTING BRAKE PEDAL LINKAGE
  • 5.20. MEASURING BRAKE PERFORMANCE
  • 5.21. MEASURING BRAKE OIL PRESSURE
  • 5.22. TESTING FOR BRAKE DISC WEAR
  • 5.23. BLEEDING AIR FROM BRAKE SYSTEM
  • 5.24. MEASURING PARKING BRAKE PERFORMANCE
  • 5.25. TESTING AND ADJUSTING PARKING BRAKE LINKAGE
  • 5.26. TESTING PARKING BRAKE DISC WEAR
  • 5.27. MEASURING PARKING BRAKE DISC WEAR
  • 5.28. MEASURING WORK EQUIPMENT CONTROL LEVER
  • 5.29. MEASURING STROKE OF WORK EQUIPMENT VALVE SPOOL
  • 5.30. MEASURING WORK EQUIPMENT HYDRAULIC PRESSURE
  • 5.31. MEASURING WORK EQUIPMENT
  • 5.32. TESTING AND ADJUSTING BUCKET POSITIONER
  • 5.33. TESTING AND ADJUSTING BOOM KICKOUT
  • 5.34. TROUBLESHOOTING
  • 5.34.1. USING TROUBLESHOOTING CHARTS FOR ENGINERELATED FAILURE
  • 5.34.2. POINTS TO REMEMBER WHEN TROUBLESHOOTING
  • 5.34.3. TROUBLESHOOTING OF ENGINE (S4D102E) SYSTEM (S MODE)
  • 5.34.3.1. S1 STARTING PERFORMANCE IS POOR (STARTING ALWAYS TAKES TIME)
  • 5.34.3.2. S2 ENGINE DOES NOT START
  • 5.34.3.3. S3 ENGINE DOES NOT PICK UP SMOOTHLY (FOLLOWUP IS POOR)
  • 5.34.3.4. S4 ENGINE STOPS DURING OPERATIONS
  • 5.34.3.5. S5 ENGINE DOES NOT ROTATE SMOOTHLY (HUNTING)
  • 5.34.3.6. S6 ENGINE LACKS OUTPUT (NO POWER)
  • 5.34.3.7. S7 EXHAUST GAS IS BLACK (INCOMPLETE COMBUSTION)
  • 5.34.3.8. S8 OIL CONSUMPTION IS EXCESSIVE (OR EXHAUST GAS IS BLUE)
  • 5.34.3.9. S9 OIL BECOMES CONTAMINATED QUICKLY
  • 5.34.3.10. S10 FUEL CONSUMPTION IS EXCESSIVE
  • 5.34.3.11. S11 OIL IS COOLING WATER, OR WATER SPURTS BACK, OR WATER LEVEL GOES DOWN
  • 5.34.3.12. S12 OIL PRESSURE LAMP LIGHTS UP (DROP IN OIL PRESSURE)
  • 5.34.3.13. S13 OIL LEVEL RISES
  • 5.34.3.14. S14 WATER TEMPERATURE BECOMES TOO HIGH (OVERHEATING)
  • 5.34.3.15. S15 ABNORMAL NOISE IS MADE
  • 5.34.3.16. S16 VIBRATION IS EXCESSIVE
  • 5.34.4. TROUBLESHOOTING OF TRANSMISSION CONTROLLER SYSTEM (AUTOSHIFT TRANSMISSION) (AMODE)
  • 5.34.4.1. OUTLINE
  • 5.34.4.2. A1 TROUBLESHOOTING CODE 12 F SOLENOID SIGNAL SYSTEM
  • 5.34.4.3. A2 TROUBLESHOOTING CODE 13 R SOLENOID SIGNAL SYSTEM
  • 5.34.4.4. A3 TROUBLESHOOTING CODE 14 ABNORMALITY IN HL SOLENOID SIGNAL SYSTEM
  • 5.34.4.5. A4 TROUBLESHOOTING CODE 16 ABNORMALITY IN SPEED SOLENOID SIGNAL SYSTEM
  • 5.34.4.6. A5 TROUBLESHOOTING CODE 20 ABNORMALITY IN DIRECTIONAL LEVER SIGNAL SYSTEM
  • 5.34.4.7. A6 TROUBLESHOOTING CODE 21 ABNORMALITY IN GEAR SHIFT LEVER SIGNAL SYSTEM
  • 5.34.4.8. A7 TROUBLESHOOTING CODE 22 ABNORMALITY IN TRAVEL SPEED SIGNAL SYSTEM
  • 5.34.4.9. A8 TROUBLESHOOTING CODE 23 ABNORMALITY IN ENGINE SPEED SIGNAL
  • 5.34.4.10. A9 KICKDOWN SWITCH SYSTEM
  • 5.34.4.11. A10 TRANSMISSION CUTOFF SIGNAL SYSTEM
  • 5.34.4.12. A11 NEUTRALIZER RELAY SIGNAL SYSTEM
  • 5.34.4.13. A12 CAUTION BUZZER SIGNAL SYSTEM
  • 5.34.4.14. A13 CONTROLLER POWER SOURCE SYSTEM
  • 5.34.5. TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (T MODE)
  • 5.34.5.1. POWER TRAIN
  • 5.34.5.2. STEERING SYSTEM
  • 5.34.5.3. BRAKE SYSTEM
  • 5.34.5.4. WORK EQUIPMENT
  • 6. DISASSEMBLY AND ASSEMBLY
  • 6.1. METHOD OF USING MANUAL
  • 6.2. PRECAUTIONS WHEN CARRYING OUT OPERATION
  • 6.3. SPECIAL TOOL LIST
  • 6.4. STARTING MOTOR
  • 6.4.1. REMOVAL AND INSTALLATION
  • 6.5. ALTERNATOR
  • 6.5.1. REMOVAL AND INSTALLATION
  • 6.6. FUEL INJECTION PUMP
  • 6.6.1. REMOVAL
  • 6.6.2. INSTALLATION
  • 6.7. ENGINE OIL COOLER
  • 6.7.1. REMOVAL AND INSTALLATION
  • 6.8. WATER PUMP
  • 6.8.1. REMOVAL AND INSTALLATION
  • 6.9. NOZZLE HOLDER
  • 6.9.1. REMOVAL
  • 6.9.2. INSTALLATION
  • 6.10. THERMOSTAT
  • 6.10.1. REMOAVAL AND INSTALLATION
  • 6.11. TURBOCHARGER
  • 6.11.1. REMOVAL AND INSTALLATION
  • 6.12. TORQUE CONVERTER CHARGING PUMP
  • 6.12.1. REMOVAL AND INTALLATION
  • 6.13. TORQUE CONVERTER, TRANSMISSION
  • 6.13.1. REMOVAL
  • 6.13.2. INSTALLATION
  • 6.14. TORQUE CONVERTER
  • 6.15. TRANSMISSION CONTROL VALVE
  • 6.15.1. REMOVAL
  • 6.15.2. INSTALLATION
  • 6.15.3. DISASSEMBLY
  • 6.15.4. ASSEMBLY
  • 6.16. TRANSMISSION SOLENOID VALVE
  • 6.16.1. DISASSEMBLY AND ASSEMBLY
  • 6.17. TRANSMISSION ACCUMULATOR VALVE
  • 6.18. CENTER HINGE PON
  • 6.19. STEERING CYLINDER
  • 6.20. HYDRAULIC FILTER
  • 6.20.1. REMOVAL AND INSTALLATION
  • 6.21. HYDRAULIC, STEERING PUMP
  • 6.21.1. REMOVAL
  • 6.21.2. INSTALLATION
  • 6.22. MAIN CONTROL VALVE
  • 6.22.1. REMOVAL
  • 6.22.2. INSTALLATION
  • 6.22.3. DISASSEMBLY
  • 6.22.4. ASSEMBLY
  • 6.23. BUCKET CYLINDER
  • 6.24. HYDRAULIC CYLINDER
  • 6.24.1. DISASSEMBLY
  • 6.24.2. ASSEMBLY
  • 6.25. WORK EQUIPMENT
  • 6.25.1. REMOVAL AND INSTALLATION
  • 6.26. INSTRUMENT PANEL
  • 6.26.1. REMOVAL AND INSTALLATION
  • 6.27. ENGINE HOOD
  • 6.27.1. REMOVAL INSTALLATION
  • 7. MAINTENANCE STANDARD
  • 7.1. ENGINE MOUNT, TRANSMISSION MOUNT
  • 7.2. TORQUE CONVERTER CHARGING PUMP
  • 7.3. TORQUE CONVERTER
  • 7.4. TRANSMISSION
  • 7.5. TRANSMISSION CONTROL VALVE
  • 7.6. ACCUMULATOR VALVE
  • 7.7. DRIVE SHAFT
  • 7.8. DIFFERENTIAL
  • 7.9. FINAL DRIVE
  • 7.10. AXLE MOUNT
  • 7.11. CENTER HINGE PIN
  • 7.12. STEERING COLUMN
  • 7.13. PRIORITY VALVE
  • 7.14. STEERING CYLINDER MOUNT
  • 7.15. BRAKE BOOSTER
  • 7.16. BRAKE
  • 7.17. PARKING BRAKE
  • 7.18. HYDRAULIC AND STEERRING PUMP
  • 7.19. MAIN CONTROL VALVE
  • 7.20. HYDAULIC CYLINDER
  • 7.21. WORK EQUIPMENT LINKAGE
  • 7.22. BUCKET
  • 7.23. BUCKET POSITIONER AND BOOM KICKOUT
  • 8. OTHERS
  • 8.1. ELECTRICAL CIRCUIT DIAGRAM (1/2)
  • 8.2. ELECTRICAL CIRCUIT DIAGRAM (2/2)
  • 8.3. AIR CONDITIONER ELECTRICAL CIRCUIT DIAGRAM
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