Komatsu WA320-6 Wheel Loader Workshop Manual
Komatsu Wa320-5h Sn H50051 Wheel Loader Service Manual
Komatsu WA320-6 & WA320PZ-6 Shop Manual (VEBM620100)
This comprehensive service manual (Publication No. VEBM620100) covers serial numbers 70001+, 70092+, and H00051+. It is the essential guide for technicians performing maintenance, diagnostics, and repairs on Komatsu wheel loaders.
1. General Info & Specifications
- 00 Index and Foreword [SEN04163-00]: General information and guide for the WA320-6 loader.
- 01 Specification [SEN04164-00]: Detailed technical data and performance specs for the SAA6D107E-1 engine.
2. Structure and Function [SEN04165-00]
- Engine & Cooling: Maintenance standards for the radiator and cooling circuits [SEN04174-00].
- Power Train & Steering: Components and functioning of the HST (Hydrostatic Transmission).
- Hydraulic System: Detailed analysis of the pump, valves, and work equipment [SEN04179-00].
3. Testing, Adjusting & Standard Values
- Standard Service Value Table [SEN04184-00]: Critical baseline data for machine inspection.
- Testing and Adjusting [SEN04185-00]: Procedures to calibrate engine speed and hydraulic pressure.
4. Troubleshooting & Error Codes [SEN04168-00]
- Failure Code Table: Identification and clearing of Komatsu error codes.
- Electrical System (E-mode): Diagnostics for sensors and controllers [SEN04197-00].
- Mechanical System (H/S-mode): Troubleshooting for the hydraulic and engine subsystems.
5. Disassembly and Assembly [SEN04169-00]
- Major Components: Step-by-step removal of the ROPS/FOPS cab and engine attachments.
- Power Train Parts: Detailed disassembly of the transmission and axle units.
6. Diagrams and Drawings [SEN04170-00]
- Hydraulic Circuit Diagrams: Visual schematics for pump and valve flow [SEN04209-00].
- Electrical Schematics: Full wiring diagrams for the monitoring and electrical system.
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