Komatsu WA470-3 Wheel Loader Shop Manual VEBM480104

Description

• Model List:
  • WA470-3 Wheel Loader

• 1. Contents
• 1.1. General
• 1.1.1. Up to SN WA470H20668
• 1.1.2. Dimensions and weights
• 1.1.3. Specifications
• 1.1.4. Weight table
• 1.1.5. List of lubricant and water
• 1.1.6. From SN WA470H20669 up to SN WA470H20941
• 1.1.7. Dimensions and weights
• 1.1.8. Specifications
• 1.1.9. Weight table
• 1.1.10. List of lubricant and water
• 1.1.11. SN WA470H20942 and up
• 1.1.12. Specifications
• 1.1.13. Weight table
• 1.1.14. List of lubricant and water
• 1.1.15. Outlines of service
• 1.1.16. General view of controls and gauges
• 1.1.17. Torque list
• 1.2. Structure and function
• 1.2.1. Power train
• 1.2.2. Power train system
• 1.2.3. Torque converter, transmission piping
• 1.2.4. Transmission hydraulic system diagram
• 1.2.5. Transmission hydraulic circuit diagram
• 1.2.6. Torque converter
• 1.2.7. Transmission
• 1.2.8. Clutch
• 1.2.9. Transmission control valve
• 1.2.10. Transmission solenoid valve
• 1.2.11. Main relief valve
• 1.2.12. Torque converter outlet port valve
• 1.2.13. Priority valve
• 1.2.14. Directional selector valve
• 1.2.15. HL selector valve and range selector valve
• 1.2.16. Emergency manual spool
• 1.2.17. Electronic control modulation valve (ECMV)
• 1.2.18. Pilot oil filter
• 1.2.19. Accumulator valve
• 1.2.20. Axle mount, center hinge pin
• 1.2.21. Steering piping
• 1.2.22. Steering column, orbit roll
• 1.2.23. Orbitroll valve
• 1.2.24. Steering demand valve
• 1.2.25. Overload relief valve
• 1.2.26. Steering relief valve
• 1.2.27. Operation of demand valve
• 1.2.28. Emergency steering
• 1.2.29. Brake piping
• 1.2.30. Brake circuit diagram
• 1.2.31. Brake valve
• 1.2.32. Charge valve
• 1.2.33. Accumulator for system brake
• 1.2.34. Slack adjuster
• 1.2.35. Brake pressure regulating valve
• 1.2.36. Accumulator for PPC valve
• 1.2.37. Brake accumulator unit
• 1.2.38. Brake
• 1.2.39. Parking brake control
• 1.2.40. Parking brake
• 1.2.41. Parking brake valve
• 1.2.42. Hydraulic piping
• 1.2.43. Work equipment hydraulic system diagram
• 1.2.44. Work equipment hydraulic circuit diagram
• 1.2.45. Work equipment lever linkage
• 1.2.46. Hydraulic tank
• 1.2.47. Breather
• 1.2.48. PPC valve
• 1.2.49. PPC relief valve
• 1.2.50. Accumulator for PPC valve
• 1.2.51. Cutoff valve
• 1.2.52. Main control valve
• 1.2.53. Relief valve
• 1.2.54. Safety valve (with suction)
• 1.2.55. Suction valve
• 1.2.56. Hydraulic safety system
• 1.2.57. Work equipment linkage
• 1.2.58. Bucket
• 1.2.59. Bucket positioner and boom kickout
• 1.2.60. Machine monitor system
• 1.2.61. Transmission autoshift control system
• 1.2.62. Transmission controller
• 1.2.63. (electronic controlled suspension system)
• 1.2.64. ALS system
• 1.2.65. Sensors
• 1.2.66. Engine start circuit
• 1.2.67. Engine stop circuit
• 1.2.68. Preheating circuit
• 1.2.69. Ribbon heater
• 1.2.70. Electric transmission control
• 1.2.71. Combination switch
• 1.2.72. Kickdown, hold switch
• 1.2.73. Transmission electric circuit diagram
• 1.2.74. Transmission cutoff switch
• 1.2.75. Transmission cutoff function
• 1.2.76. Electric parking brake control
• 1.2.77. Airconditioner
• 1.2.78. Wiring diagrams
• 1.3. Testing and adjusting
• 1.3.1. Standard value table for engine
• 1.3.2. Standard value table for chassis
• 1.3.3. Test certificate
• 1.3.4. Standard value table for electrical parts
• 1.3.5. Tools for testing, adjusting and troubleshooting
• 1.3.6. Frm SN WA470H20669 up to SN WA470H20941 MTA11(STC)
• 1.3.7. Measuring engine speed
• 1.3.8. Measuring intake air pressure
• 1.3.9. Testing and adjusting valves and injectors
• 1.3.10. Measuring blowby pressure
• 1.3.11. Measuring engine oil pressure
• 1.3.12. Testing the fan belt tension
• 1.3.13. Measuring stall speed
• 1.3.14. Up to SN WA470H20668 S6D1251 SN WA470H20942 and upSA6D125E2
• 1.3.15. Measuring engine speed
• 1.3.16. Measuring intake air pressure (boost pressure)
• 1.3.17. Adjusting valve clearance
• 1.3.18. Mesuring exhaust color
• 1.3.19. Measuring exhaust gas temperature
• 1.3.20. Measuring blowby pressure
• 1.3.21. Measuring compression pressure
• 1.3.22. Measuring engine oil pressure
• 1.3.23. Testing and adjusting fuel injection timing
• 1.3.24. Method for adjusting engine motor stop cable
• 1.3.25. Testing and adjusting fan belt tension
• 1.3.26. Measuring accelerator pedal
• 1.3.27. Basic adjustment of accelerator pedal
• 1.3.28. Measuring operating force, travel of speed lever
• 1.3.29. Measuring stall speed
• 1.3.30. Measuring torque converter, transmission, parking brake oil pressure
• 1.3.31. Method of operating emergency manual spool
• 1.3.32. Measuring clearance between tyre and wheel
• 1.3.33. Measuring steering oil pressure
• 1.3.34. Measuring brake performance
• 1.3.35. Testing brake oil pressure
• 1.3.36. Measuring brake disc wear
• 1.3.37. Bleeding air from brake system
• 1.3.38. Measuring parking brake performance
• 1.3.39. Method of manual release of parking brake
• 1.3.40. Testing wear of parking brake disc
• 1.3.41. Measuring work equipment control lever
• 1.3.42. Measuring work equipment hydraulic pressure
• 1.3.43. Measuring PPC valve pressure
• 1.3.44. Measuring work equipment
• 1.3.45. Testing and adjusting bucket positioner
• 1.3.46. Testing and adjusting boom kickout
• 1.3.47. Adjusting main monitor (speedometer modul)
• 1.3.48. Checking for abnormality in fuel level sensor
• 1.4. Disassembly and assembly
• 1.4.1. Method of using manual
• 1.4.2. Precautions when carrying out operation
• 1.4.3. Special tool list
• 1.4.4. Starting motor
• 1.4.5. Alternator
• 1.4.6. Engine oil cooler
• 1.4.7. Fuel injection pump
• 1.4.8. Torque converter charging pump
• 1.4.9. Torque converter, transmission
• 1.4.10. Torque converter
• 1.4.11. Tranmission
• 1.4.12. Transmission clutch pack
• 1.4.13. Parking brake
• 1.4.14. Transmission control valve
• 1.4.15. Transmission accumulator valve
• 1.4.16. Drive shaft
• 1.4.17. Front axle
• 1.4.18. Rear axle
• 1.4.19. Front differential
• 1.4.20. Rear differential
• 1.4.21. Differential
• 1.4.22. Final drive
• 1.4.23. Center hinge pin
• 1.4.24. Steering, orbit roll
• 1.4.25. Steering valve
• 1.4.26. Steering, switch pump
• 1.4.27. Steering cylinder
• 1.4.28. Brake valve
• 1.4.29. Right brake valve (tandem)
• 1.4.30. Left brake valve (single)
• 1.4.31. Slack adjuster
• 1.4.32. Brake
• 1.4.33. Parking brake disc
• 1.4.34. Hydraulic tank
• 1.4.35. Work equipment, PPC pump
• 1.4.36. PPC valve
• 1.4.37. Main control valve
• 1.4.38. Bucket cylinder
• 1.4.39. Boom cylinder
• 1.4.40. Hydraulic cylinder
• 1.4.41. Maintenance monitor
• 1.4.42. Air conditioner unit
• 1.4.43. Air conditioner condenser
• 1.4.44. Dry receiver
• 1.4.45. Air conditioner compressor
• 1.4.46. Tyres
• 1.5. Maintenance standard
• 1.5.1. Engine mount, transmission mount
• 1.5.2. Torque converter
• 1.5.3. Transmission
• 1.5.4. Transmission control valve
• 1.5.5. Drive shaft
• 1.5.6. Diffential
• 1.5.7. Final drive
• 1.5.8. Axle mount
• 1.5.9. Steerig column, orbit roll
• 1.5.10. Steering valve
• 1.5.11. Steering cylinder mount
• 1.5.12. Slack adjuster
• 1.5.13. Brake valve
• 1.5.14. Brake
• 1.5.15. Parking brake
• 1.5.16. Torque converter, transmission pump
• 1.5.17. Steering, switch pump
• 1.5.18. Hydraulic, PPC pump
• 1.5.19. PPC valve
• 1.5.20. Cutoff valve
• 1.5.21. Main control valve
• 1.5.22. Boom cylinder
• 1.5.23. Bucket cylinder
• 1.5.24. Center hinge pin
• 1.5.25. Work equipment linkage
• 1.5.26. Bucket
• 1.5.27. Bucket positioner and boom kickout
• 1.6. Diagrams
• 1.6.1. Diagrams_A3
• 1.6.2. Diagrams_A2