2001-2005 Komatsu WA500-3 / WA500-3H Wheel Loader Service Manual

Inside the 2001–2005 Komatsu WA500-3 Wheel Loader Shop Manual

• Covers 2001–2005 Komatsu WA500-3 and WA500-3H wheel loaders with S6D140E-2 or SA6D140E-3 engine variants
• Official Komatsu publication SEBM009014, revised edition dated February 2005
• Contains 12 detailed chapters on structure, hydraulic circuits, transmission components, and electrical wiring systems
• Stored against your account so you can retrieve it after a hard-drive loss
• Full-text search finds any part number in seconds
• Accessible from your device as soon as the order is placed
• Suitable for printing individual sections for shop-floor use
• This 2005 shop manual is the primary reference for the 50001 and up serial number range, documenting essential component interaction and technical specifications for the WA500-3 build.

Technical Documentation Scope

This Komatsu WA500-3 workshop manual provides comprehensive documentation regarding the structure and function of major machine systems. The content includes detailed assembly drawings, torque specifications, and system-level overviews of the engine, transmission, steering, and hydraulic circuits. Detailed chapters describe the power flow from the engine through the damper, torque converter, and transfer to the final drives, as well as the operation of the Electronic Control Modulation Valve (ECMV) for gear shifting and the limited-slip differential mechanism.

Specification and Reference Data

Engine performance parameters such as horsepower, torque, and idle speeds are provided alongside essential capacity data for fuel, coolant, and hydraulic systems. Standard tightening torque values for bolts, tapered screws, and O-ring boss piping are listed to assist in maintaining hardware integrity. The manual further documents electrical wiring codes and how factory workshop documentation is structured to aid in diagnostic tasks. Reference values for sensor thresholds, hydraulic pressures, and outboard maintenance intervals are standard across the included chapters. The intake valve clearance is listed as a reference for engine assembly tasks. System capacity for the hydraulic unit is documented at 284 liters. The steering valve relief pressure is specified at 20.6 MPa for system stability. All service data shown here is for reference only — qualified technicians and the original OEM documentation remain the authoritative source for any hands-on work. An official 1200-page Komatsu OEM workshop manual covering the 2001–2005 WA500-3 and WA500-3H, documenting chassis, powertrain, hydraulic, and electrical specifications for the 50001 and up serial number range.