Komatsu WA500-1 Wheel Loader Service Manual

Komatsu WA500-1 Technical Scope

• Covers 10001 and up serial range Komatsu WA500-1 wheel loaders equipped with the S6D140-1 engine
• Official Komatsu publication S/N SEBM04250107, revision 05-91(02)03261
• Includes 105+ high-resolution diagrams, exploded-view component illustrations, and comprehensive torque-specification tables
• Downloads to your account within seconds of checkout
• Page spreads stay legible when printed at original size
• This 1991 first edition is the primary factory reference for the WA500-1 series, detailing engine mounting, cooling system parameters, and power train maintenance standards

Component and System Documentation

This manual provides detailed technical information for maintenance and shop-floor service on the Komatsu WA500-1 wheel loader. Major sections categorize the unit into groups including the engine, power train, steering system, brake and air system, work equipment system, and electrical/electronic systems. Each group provides specific structural overviews followed by testing, adjusting, disassembly, and assembly instructions for key assemblies like the engine, injection pump, radiator, and axle components. Extensive weight tables for individual components aid in safe handling and transport during workshop operations.

Specification Highlights

Technical data is provided for critical identification and maintenance. Intake valve clearance for the S6D140-1 is specified at 0.43 mm in the engine specification table. Radiator core dissipation capacity is documented at 89.9 cm² for the G7 core type. Standard torque for a 16 mm bolt is listed at 279 Nm in the tightening torque charts. Coolant capacity for the cooling system is 80 liters, and the engine assembly weighs 1453 kg. Learn more about the differences between an OEM shop publication for heavy equipment.

An official 900+ page Komatsu OEM shop manual covering the 10001 and up serial range WA500-1 wheel loader, documenting engine, drivetrain, chassis, and hydraulic system specifications for the S6D140-1 engine configuration.