2000 Komatsu PC100-6 and PC120-6 Hydraulic Excavator Shop Manual (P/N SEBM003307)

• Covers 1994–2001 Komatsu PC100-6 and PC120-6 hydraulic excavators, including standard and auxiliary service-valve variants.
• Official Komatsu publication SEBM003307 (2000 Edition), featuring 1036 pages of structural and functional data.
• Contains 15 detailed hydraulic circuit diagrams, encompassing breaker and crusher attachment circuits alongside comprehensive technical tables.

Technical Architecture and Workshop Utility

This comprehensive reference is partitioned into five primary technical segments designed for maximum workshop efficiency. The general section introduces machine assembly drawings, mass tables for every sub-assembly, and specific fluid-level requirements. This includes oil and coolant capacities optimized for diverse operating temperatures. Following the general introduction, the structure and function segment examines the mechanical architecture of the power train, hydraulic pumps, swing machinery, and track components. Diagnostic checks and calibration requirements are outlined in the testing and adjusting section. You will also find detailed component removal sequences. To assist in assessing components during a professional repair, the maintenance standards segment provides exhaustive tolerance charts and wear limits.

System Specifications and Safety Parameters

The manual thoroughly details the hydraulic system, providing essential pressure specifications for components such as the main pump, LS valve, and TVC valve. Performance data for the S4D95L-1 engine, including horsepower and torque, is documented alongside extensive electric wire coding tables. Key technical values include the 10,700 kg operating weight of the PC100-6 model and a 120-liter hydraulic tank capacity for both machines. Swing circle grease amounts are precisely listed at 10 liters for early series and 6.5 liters for later variants. Proper hoisting instructions and diagrams of push-pull couplers are provided to prevent handling damage. Because heavy machinery operations involve significant risks, always verify load capacities and follow established workshop safety protocols before interacting with pressurized hydraulic components or initiating heavy lifting procedures.