Komatsu WA70-7 Wheel Loader Shop Manual VENBM02000

Description

• Model List:
  • WA70-7 Wheel Loader

• 1. Contents
• 2. Safety
• 3. General
• 4. Structure and Function
• 5. Testing and Adjusting
• 6. Disassembly and Assembly
• 7. Diagrams
• 8. SAFETY
• 8.1. Safety notice
• 8.2. Foreword
• 8.3. How to read the shop manual
• 8.4. Hoisting instructions
• 9. GENERAL
• 9.1. Dimensions, weights and operating data
• 9.2. Weight tables
• 9.3. Lubricants and operating mediums
• 9.4. Basic procedures of maintenance
• 9.5. Torque list Screws and nuts
• 10. STRUCTURE AND FUNCTION
• 10.1. Powertrain
• 10.2. Closed circuit
• 10.3. Hydraulic drive system
• 10.4. Variable displacement pump (HST pump)
• 10.5. Variable displacement motor (HST motor with HA Control)
• 10.6. Drive shaft
• 10.7. Front axle Mounting
• 10.8. Rear axle Mounting
• 10.9. Front axle
• 10.10. Rear axle with transfer box
• 10.11. Transfer box TB172
• 10.12. Limited slip differential
• 10.13. Wheel hub Font axle and rear axle
• 10.14. Service and parking brake Front axle
• 10.15. Service and parking brake circuit
• 10.16. Service brake assembly
• 10.17. Mainbrake valve
• 10.18. Steering articulation joint
• 10.19. Steering system
• 10.20. Work equipment hydraulic
• 10.21. Main control valve
• 10.22. Lift cylinder
• 10.23. Dump cylinder
• 10.24. Steering cylinder
• 10.25. Loader Linkage with quickcoupler
• 10.26. Quickcoupler
• 10.27. Monitor display
• 10.28. Sensors
• 10.29. Preheater
• 10.30. Engine stop / start / preheating circuit
• 10.31. Electrical fuses and relays
• 10.32. Diagrams
• 10.33. Air conditioner (option)
• 11. TESTING AND ADJUSTING
• 11.1. Standard value table for engine
• 11.2. Valve lash clearance
• 11.3. Engine compression test
• 11.4. Fuel system
• 11.5. Vbelt tension
• 11.6. Engine RPM
• 11.7. Testing travel speed
• 11.8. Engine stall torque RPM
• 11.9. Hydraulic pressure cutoff
• 11.10. Working hydraulic pressure
• 11.11. Steering oil pressure
• 11.12. Operating time for steering wheel
• 11.13. Operating force of steering wheel
• 11.14. Brake
• 11.15. Main brake valve basic adjustment
• 11.16. Brake efficiency
• 11.17. Parking brake efficiency
• 11.18. Bleeding/ filling up the brake circuit
• 11.19. Cabin adjustment
• 11.20. Proportional amplifier
• 12. DISASSEMBLY AND ASSEMBLY
• 12.1. Comments
• 12.2. Starter assembly
• 12.3. Alternator assembly
• 12.4. Radiator assembly
• 12.5. Fan assembly
• 12.6. Water pump assembly
• 12.7. Fuel tank assembly
• 12.8. Engine cover assembly
• 12.9. Engine cover support assembly
• 12.10. Engine assembly
• 12.11. Clutch assembly
• 12.12. Main brake valve assembly
• 12.13. Priority valve assembly
• 12.14. Orbitrollvalve assembly
• 12.15. Counterweight assembly
• 12.16. Main control valve assembly WA707
• 12.17. Monitor assembly
• 12.18. Articulated joint assembly
• 12.19. Variable motor assembly
• 12.20. Rear axle assembly
• 12.21. Front axle assembly
• 12.22. Front axle
• 12.23. Brake caliper
• 12.24. Rear axle
• 12.25. Epicyclic reduction gear group
• 12.26. Wheel hub
• 12.27. Wheel shaft WA707
• 12.28. Differential support group
• 12.29. Differential locking group
• 12.30. Differential group (LSD 25)
• 12.31. Pinion group
• 12.32. Transmission box
• 12.33. Variable displacement pump assembly
• 12.34. Hydraulic pump assemblies
• 12.35. Quick coupler assembly
• 12.36. Steering cylinder assembly
• 12.37. Lift cylinder assembly
• 12.38. Dump cylinder assembly
• 12.39. Replacing windows in drivers cab
• 13. others
• 13.1. Hydraulic circuit diagram WA707
• 13.2. Wiring diagram 1/5 WA707
• 13.3. Wiring diagram 2/5 WA707
• 13.4. Wiring diagram 3/5 WA707
• 13.5. Wiring diagram 4/5 WA707
• 13.6. Wiring diagram 5/5 WA707