2004 Komatsu PC100-6, PC100L-6, PC120-6, PC120LC-6, PC130-6 Shop Manual

Excavator Technical Reference

• 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.
• Accessible from your device as soon as the order is placed.
• Suitable for printing individual sections for shop-floor use.
• Includes detailed weight tables for major assemblies, including track frames, counterweights, and boom/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, serving as an authoritative reference for factory-specified mechanical standards and component layout.

System Structure and Hydraulic Documentation

This manual provides a detailed look at the internal systems of the Komatsu PC100-6 and PC130-6 series. The content encompasses the fundamental structure and function of the primary drivetrain, hydraulic pump assemblies, and power transmission components. It documents the inner mechanics of the swing machinery and track frames, providing clear visualization of the relationship between engine output and hydraulic activation. This technical manual for Komatsu outlines the operational logic of the LS and PC valves, ensuring clarity on how the hydraulic pump discharge adapts to actuator loads under varying conditions.

Component Specifications and Reference Data

Technical specifications for the PC100-6 and PC120LC-6 are documented across numerous tables. Hydraulic tank capacity for these units is 140 liters. The standard tightening torque for a 16 mm bolt is 279 Nm. The PC120-6 travel motor uses a variable displacement piston type design. Each section includes data on sealants, lubricant volumes, and standard tolerances to assist in verifying component condition during what an OEM service publication covers for these machines. 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.

Document Reference: SEBM010611, 2004