Komatsu WA320-3 Wheel Loader Shop Manual VEBM450104

Description

• Model List:
  • WA320-3 Wheel Loader

• 1. Contents
• 1.1. General
• 1.1.1. Dimensions and weights
• 1.1.2. Specification
• 1.1.3. Weight table
• 1.1.4. General view of controls and gauges
• 1.1.5. Dimensions and weights
• 1.1.6. Specification
• 1.1.7. List of lubricant and water
• 1.1.8. Ountlines of service
• 1.1.9. General view of controls and gauges
• 1.1.10. Torque list
• 1.2. Structure and function
• 1.2.1. Power train
• 1.2.2. Power train system
• 1.2.3. Toque converter, transmission piping
• 1.2.4. Transmission hydrqulic system diagram
• 1.2.5. Torque converter
• 1.2.6. Torque cnverter oil filter
• 1.2.7. Transmission
• 1.2.8. Clutch
• 1.2.9. Transmission control valve
• 1.2.10. Transmission solenoid valve
• 1.2.11. Pilot reducing valve
• 1.2.12. Main relief valve
• 1.2.13. Torque converter outlet port valve
• 1.2.14. Priority valve
• 1.2.15. Quick return valve
• 1.2.16. Directional selector valve
• 1.2.17. HL selector valve and range selector valve
• 1.2.18. Emergency manual spool
• 1.2.19. Modulation valve
• 1.2.20. Pilot oil filter
• 1.2.21. Accumulation valve
• 1.2.22. Drive shaft
• 1.2.23. Axle
• 1.2.24. Differential
• 1.2.25. Final drive
• 1.2.26. Axle mount, center hinge pin
• 1.2.27. Steering piping
• 1.2.28. Steering column, orbit roll
• 1.2.29. Priority valve
• 1.2.30. Steering valve (orbit roll)
• 1.2.31. Cushion valve
• 1.2.32. way restrictor valve
• 1.2.33. Emergency steering
• 1.2.34. Brake piping
• 1.2.35. Brake hydraulic circuit diagram
• 1.2.36. Brake valve
• 1.2.37. Accumulation charge valve
• 1.2.38. Accumulation (for brake)
• 1.2.39. Brake pressure regulation valve
• 1.2.40. Accumutator for PPC valve
• 1.2.41. Brake accumulator unit
• 1.2.42. Brake
• 1.2.43. Parking brake control
• 1.2.44. Parking brake
• 1.2.45. Parking brake valve
• 1.2.46. Hydraulic piping
• 1.2.47. Work equipment hydraulic circuit diagram
• 1.2.48. Work equipment lever linkage
• 1.2.49. Hydraulic tank
• 1.2.50. Oil filter bypass valve
• 1.2.51. PPC valve
• 1.2.52. Operation of PPC relief valve
• 1.2.53. Accumulator (for PPC valve)
• 1.2.54. Main control valve up to H20343
• 1.2.55. Relief valve up to H20343
• 1.2.56. Safety valve with suction up to H20343
• 1.2.57. Suction valve up to H20343
• 1.2.58. Main control valve from H20344 up to H20710
• 1.2.59. Safety valve with suction H20344 and up
• 1.2.60. Anticavitation valve H20344 and up
• 1.2.61. Main control valveH20711 and up
• 1.2.62. Operation of cutoff valve up to H20343
• 1.2.63. Work equipment valve operation
• 1.2.64. Hydraulic safety system up to H20710
• 1.2.65. Work equipment linkage
• 1.2.66. Bucket
• 1.2.67. Bucket positioner and boom kickout
• 1.2.68. Machine monitor system
• 1.2.69. Main monitor
• 1.2.70. Maintenance monitor
• 1.2.71. Transmission autoshift control function
• 1.2.72. Transmission controler
• 1.2.73. (ALSelectronic)
• 1.2.74. Sensors
• 1.2.75. Engine starting circuit
• 1.2.76. Etherstart (option)
• 1.2.77. Engine start/stop/preheating circuit
• 1.2.78. Ribbon heater H20561 and up
• 1.2.79. Electric transmission control
• 1.2.80. Kickdown/hold switch
• 1.2.81. Kickdown electric circuit diagram (normal)
• 1.2.82. Transmission cutoff switch
• 1.2.83. Transmission cutoff function
• 1.2.84. Electric parking brake control
• 1.2.85. Airconditioner
• 1.2.86. 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. Standard value table for electrical system
• 1.3.4. Test certificate WA3203
• 1.3.5. Tools for testing and adjusting
• 1.3.6. Measuring compression pressure
• 1.3.7. Measuring blowby pressure
• 1.3.8. Testing and adjusting fuel injection timing
• 1.3.9. Measuring exhaust color
• 1.3.10. Measuring intake air pressure (boost pressure)
• 1.3.11. Measuring engine oil pressure
• 1.3.12. Testing the fan belt tension
• 1.3.13. Measuring acceerator pedal
• 1.3.14. Basic adjustment of accelerator pedal
• 1.3.15. Measuring operating force, travel of speed lever
• 1.3.16. Measuring stall speed
• 1.3.17. Measuring torque converter, transmission, parking brake pressure
• 1.3.18. Method of operating emergency manuel spool
• 1.3.19. Measuring clearance between tire and wheel
• 1.3.20. Testing and adjusting steering wheel
• 1.3.21. Measuring steering oil pressure
• 1.3.22. Measuring operating force, travel of brake pedal
• 1.3.23. Measuring brake performance
• 1.3.24. Testing brake oil pressure
• 1.3.25. Testing for brake disc wear
• 1.3.26. Bleeding air from brake system
• 1.3.27. Measuring parking brake performance
• 1.3.28. Manual release note for parking brake
• 1.3.29. Testing wear of parking brake disc
• 1.3.30. Measuring work equipment control lever
• 1.3.31. Measuring work equipment hydraulic pressure
• 1.3.32. Measuring PPC valve pressure
• 1.3.33. Measuring work equipment
• 1.3.34. Testing and adjusting bucket positioner
• 1.3.35. Testing and adjusting boom kickout
• 1.3.36. Adjusting main monitor (speedometer module)
• 1.3.37. Gas side test and topping up gas pressure
• 1.3.38. Hydraulic accumulator
• 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. Sketches of special tools
• 1.4.5. SDtarting motor
• 1.4.6. Alternator
• 1.4.7. Engine oil cooler
• 1.4.8. Fuel injection pump
• 1.4.9. Torque converter charging pump
• 1.4.10. Torque converter, transmission
• 1.4.11. Torque converter
• 1.4.12. Transmission
• 1.4.13. Transmission clutch pack
• 1.4.14. Transmission control valve
• 1.4.15. Transmission accumulator valve
• 1.4.16. Transmission modulating valve
• 1.4.17. Center hinge pin
• 1.4.18. Priority valve
• 1.4.19. Steering valve
• 1.4.20. Steering cylinder
• 1.4.21. Right brake valve (tandem)
• 1.4.22. Left brake valve (single)
• 1.4.23. Parking brake disc
• 1.4.24. Hydraulic tank
• 1.4.25. Hydraulic filter
• 1.4.26. Hydraulic, steerring pump
• 1.4.27. Main control valve
• 1.4.28. PPC valve
• 1.4.29. Bucket cylinder
• 1.4.30. Boom cylinder
• 1.4.31. Hydraulic cylinder
• 1.4.32. Maintenance monitor
• 1.4.33. Air conditioner unit
• 1.4.34. Air conditrioner condenser
• 1.4.35. Dry receiver
• 1.4.36. Air conditioner compressor
• 1.5. Maintenance standard
• 1.5.1. Engine mount, transmission mount
• 1.5.2. Torque converter charging pump
• 1.5.3. Torque converter
• 1.5.4. Transmission
• 1.5.5. Transmission control valve
• 1.5.6. Modulation valve assembly
• 1.5.7. Accumulation valve
• 1.5.8. Drive shaft
• 1.5.9. Differential
• 1.5.10. Final drive
• 1.5.11. Axle mount
• 1.5.12. Center hinge pin
• 1.5.13. Steering column
• 1.5.14. Priority valve
• 1.5.15. Steering cylinder mount
• 1.5.16. Brake
• 1.5.17. Brake valve
• 1.5.18. Parking brake
• 1.5.19. Hydraulic pump
• 1.5.20. Main control valve
• 1.5.21. PPC valve
• 1.5.22. Hydraulic cylinder
• 1.5.23. Work equipment linkage
• 1.5.24. Bucket
• 1.5.25. Bucket positioner and boom kickout