2004 Komatsu PC100-6, PC100L-6, PC120-6, PC120LC-6, PC130-6 Shop Manual (P/N SEBM010611)

• Covers the 2004 Komatsu PC100-6, PC100L-6, PC120-6, PC120LC-6, and PC130-6 series, documenting specific mechanical components and hydraulic system configurations for the S4D102-1 and SAA4D102E-2 engine setups.
• Official Komatsu publication SEBM010611, printed in Japan 04-02(02).
• Contains over 150 detailed structural diagrams, hydraulic system flow schematics, and comprehensive torque-specification tables for standard hardware and flared fittings.
• Includes detailed weight tables for major assemblies, including track frames, counterweights, and boom or arm cylinders.
• Features indexable conversion tables for pressure, temperature, and torque units to aid in technical assessments.
• This 865-page technical documentation provides the foundational schematics and system descriptions for the 2004 Komatsu PC100–130-6 range. It serves as an authoritative reference for factory-specified mechanical standards and component layouts.

System Structure and Hydraulic Documentation

This reference details the internal systems of the Komatsu PC100-6 and PC130-6 series. It breaks down the fundamental structure of the primary drivetrain, hydraulic pump assemblies, and power transmission components. Mechanics get a clear look at the inner workings of the swing machinery and track frames, mapping out the exact relationship between engine output and hydraulic activation. The text outlines the operational logic of the LS and PC valves. This clarifies exactly how hydraulic pump discharge adapts to actuator loads under varying field conditions.

Component Specifications and Reference Data

Technical specifications for the PC100-6 and PC120LC-6 are documented across numerous quick-reference tables. For instance, the hydraulic tank capacity for these units is 140 liters, and the standard tightening torque for a 16 mm bolt is set at 279 Nm. The PC120-6 travel motor utilizes a variable displacement piston design. Each section includes precise data on sealants, lubricant volumes, and standard tolerances to help verify component wear. Always verify system pressures and load limits against these factory baselines before operating or servicing heavy machinery to prevent equipment damage or personal injury.