Komatsu WA320-5H Wheel Loader Shop Manual VEBM240100

Description

• Model List:
  • WA320-5H Wheel Loader

• 1. SAFETY
• 1.1. SAFETY NOTICE
• 2. FOREWORD
• 2.1. GENERAL
• 2.2. HOW TO READ THE SHOP MANUAL
• 2.3. HOISTING INSTRUCTIONS
• 2.4. METHOD OF DISASSEMBLING, CONNECTING PUSHPULL TYPE COUPLER
• 2.5. COATING MATERIALS
• 2.6. STANDARD TIGHTENING TORQUE
• 2.7. ELECTRIC WIRE CODE
• 2.8. CONVERSION TABLE
• 2.9. UNITS
• 3. GENERAL
• 3.1. GENERAL ASSEMBLY DRAWINGS
• 3.2. SPECIFICATIONS
• 3.3. WEIGHT TABLE
• 3.4. PROPER SELECTION OF FUEL, COOLANT AND LUBRICANTS
• 4. STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
• 4.1. Engine mount and transfer mount
• 4.2. Power train system diagram
• 4.3. Drive shaft (propeller shaft)
• 4.4. HST hydraulic piping diagram
• 4.5. Highpressure relief valve
• 4.6. Lowpressure relief valve
• 4.7. HST charge pump
• 4.8. Speedrelated valve (DA valve)
• 4.9. Highpressure cutoff valve
• 4.10. Forwardreverse shuttle valve
• 4.11. Transfer
• 4.12. Clutch solenoid valve
• 4.13. Axle
• 4.14. Differential
• 4.15. Limitedslip differential
• 4.16. Final drive
• 4.17. Axle mounting and center hinge pin
• 4.18. Steering piping
• 4.19. Steering column
• 4.20. Priority valve
• 4.21. Orbitroll valve
• 4.22. Cushion valve
• 4.23. Steering cylinder
• 4.24. Emergency steering piping
• 4.25. Emergency steering valve
• 4.26. Brake piping
• 4.27. Brake valve
• 4.28. Accumulator (for brake)
• 4.29. Slack adjuster
• 4.30. Brake
• 4.31. Parking brake control
• 4.32. Parking brake
• 4.33. Hydraulic piping
• 4.34. Work equipment lever linkage
• 4.35. Hydraulic tank
• 4.36. gear pump unit
• 4.37. Accumulator (for PPC circuit)
• 4.38. Lock valve
• 4.39. valve
• 4.40. Accumulator (forE.C.S.S.)
• 4.41. Hydraulic piping of cooling system
• 4.42. Cooling fan motor
• 4.43. Work equipment control valve
• 4.44. Work equipment PPC valve
• 4.45. Attachment PPC valve
• 4.46. Work equipment linkage
• 4.47. Bucket
• 4.48. Bucket positioner and boom kickout
• 4.49. Work equipment cylinder
• 4.50. Air conditioner
• 4.51. Machine monitoring system
• 4.52. Machine monitor
• 4.53. List of items displayed on monitor
• 4.54. Electrical system (HST controller system)
• 4.55. HST controller
• 4.56. Function of selecting directional selector switch
• 4.57. Engine start circuit
• 4.58. Engine stop circuit
• 4.59. Preheating circuit (automatic preheating system)
• 4.60. Parking brake circuit
• 4.61. Electronically controlled suspension system
• 4.62. Sensors
• 4.63. STANDARD VALUE TABLE FOR engine
• 4.64. STANDARD VALUE TABLE FOR CHASSIS
• 5. TESTING AND ADJUSTING
• 5.1. Tools for testing, adjusting, and troubleshooting
• 5.2. Measuring engine speed
• 5.3. Measuring exhaust gas color
• 5.4. Adjusting valve clearance
• 5.5. Measuring compression pressure
• 5.6. Measuring blowby pressure
• 5.7. Testing and adjusting fuel injection timing
• 5.8. Measuring engine oil pressure
• 5.9. Measuring, testing operating force of accelerator pedal
• 5.10. Adjusting engine stop solenoid
• 5.11. Adjusting engine speed sensor
• 5.12. Testing and adjusting air conditioner compressor belt tension
• 5.13. Measuring directional lever
• 5.14. Testing and adjusting HST oil pressure
• 5.15. Measuring clutch control pressure
• 5.16. Testing and adjusting steering wheel
• 5.17. Testing and adjusting steering oil pressure
• 5.18. Bleeding air from steering circuit
• 5.19. Testing hydraulic fan
• 5.20. Measuring brake pedal
• 5.21. Testing and adjusting brake pedal linkage
• 5.22. Measuring brake oil pressure
• 5.23. Bleeding air from brake circuit
• 5.24. Measuring parking brake performance
• 5.25. Measuring and adjusting work equipment control lever
• 5.26. Testing and adjusting work equipment hydraulic pressure
• 5.27. Testing and adjusting work equipment PPC oil pressure
• 5.28. Bleeding air
• 5.29. Releasing remaining pressure in hydraulic circuit
• 5.30. Testing and adjusting bucket positioner
• 5.31. Testing and adjusting of boom kickout
• 5.32. Checking proximity switch actuation display lamp
• 5.33. Special functions of machine monitor
• 5.34. Pm CLINIC INSPECTION CHART
• 5.35. TESTING AND ADJUSTING
• 5.36. Points to remember when troubleshooting
• 5.37. Sequence of events in troubleshooting
• 5.38. Precautions when carrying out maintenance
• 5.39. Check before troubleshooting
• 5.40. Categories, procedure, and method of using troubleshooting charts
• 5.41. Phenomena considered to be failures and troubleshooting no.
• 5.42. Connection table for connector pin numbers
• 5.43. Tadapter table
• 5.44. Connector types and mounting locat
• 5.45. ions
• 5.46. Connector layout drawing
• 5.47. TROUBLESHOOTING
• 5.48. Before troubleshooting code display
• 5.49. Before troubleshooting electrical system
• 5.50. Information contained in troubuleshooting table
• 5.51. TROUBLESHOOTING OF HST CONTROLLER SYSTEM (HST MODE)
• 5.52. Before troubleshooting code display
• 5.53. Before troubleshooting electrical system
• 5.54. Information contained in troubuleshooting table
• 5.55. TROUBLESHOOTING OF monitor SYSTEM (mon MODE)
• 5.56. Before troubleshooting electrical system
• 5.57. Information contained in troubuleshooting table
• 5.58. TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE)
• 5.59. Method of using troubleshooting chart
• 5.60. Failure code and cause table
• 5.61. TROUBLESHOOTING OF HYDRAULIC, MECHANICAL SYSTEM (H MODE)
• 5.62. Method of using troubleshooting charts
• 5.63. TROUBLESHOOTING OF ENGINE (S MODE)
• 5.64. How to read this manual
• 5.65. Precautions when carrying out operation
• 5.66. Special tool list
• 5.67. Sketch of special tools
• 5.68. Removal, installation of fuel injection pump assembly
• 5.69. Removal, installation of nozzle holder assembly
• 5.70. Removal, installation of cylinder head assembly
• 5.71. Removal, installation of engine assembly
• 5.72. Removal, installation of radiator assembly
• 5.73. Removal, installation of air aftercooler
• 5.74. Removal, installation of hydraulic oil cooler assembly
• 5.75. Removal, installation of cooling fan and fan motor assembly
• 5.76. Removal, installation of fuel tank assembly
• 5.77. Removal, installation of transfer
• 5.78. Disassembly, assembly of transfer assembly
• 5.79. Removal, installation of parking brake assembly
• 5.80. Disassembly, assembly of parking brake assembly
• 5.81. Removal, installation of front axle assembly
• 5.82. Removal, installation of rear axle assembly
• 5.83. Disassembly, assembly of axle housing assembly
• 5.84. Disassembly, assembly of differential assembly
• 5.85. Removal, installation of HST pump and 4gear pump assembly
• 5.86. Removal, installation of HST motor 1 assembly
• 5.87. Removal, installation of HST motor 2 assembly
• 5.88. Removal, installation of work equipment control valve assembly
• 5.89. Removal, installation of travel damper valve assembly
• 5.90. Removal, installation of hydraulic tank assembly
• 5.91. Removal, installation of work equipment assembly
• 5.92. Disassembly and assembly of HST pump assembly
• 5.93. Disassembly and assembly of HST motor assembly
• 5.94. Disassembly, assembly of hydraulic cylinder assembly
• 5.95. Removal, installation of operators cab assembly
• 5.96. Removal, installation of operators cab glass (Stuckglass)
• 5.97. Removal, installation of center hinge pin
• 5.98. Removal, installation of counterweight
• 5.99. Removal, installation of air conditioner unit assembly
• 5.100. Removal, installation of air conditioner compressor assembly
• 5.101. Removal, installation of monitor panel
• 6. DISASSEMBLY AND ASSEMBLY
• 7. OTHERS