Komatsu PC95-1 Excavator Shop Manual

Inside the Komatsu PC95-1 Hydraulic Excavator Shop Manual

• Covers 5000007 and up serial-numbered Komatsu PC95-1 hydraulic excavators equipped with the Perkins 1004-4 industrial engine
• Original OEM publication WEBMPC9500, printed July 1996 for the FAI Komatsu Industries product line
• Contains 47 labeled component diagrams, 5 hydraulic and electrical schematic overview plates, and 24 detailed technical specification tables
• File downloads to your account within seconds of checkout
• Accessible from your device as soon as the order is placed
• Full-text search finds any part number in seconds
• Laid out for standard letter and A4 printing
• This July 1996 edition serves as the foundational technical reference for the PC95-1 hydraulic excavator, documenting the complete series production from serial 5000007 forward

Technical Organization

This factory manual is segmented into four primary chapters that outline the technical architecture of the Komatsu PC95-1. The structural documentation details the operation and functionality of major assemblies including the power train, swing circle, track frame, and auxiliary pump systems. Subsequent testing and adjustment chapters categorize procedures for verifying hydraulic pressure, engine speed, and swing circuit performance. The final sections define the maintenance standards for inspecting disassembled components, providing the necessary criteria for evaluating wear limits in gear sets, pistons, and seal assemblies throughout the hydraulic excavator build.

Hydraulic and Mechanical Specifications

The technical data preview details critical operating parameters for the Perkins 1004-4 engine and the associated hydraulic circuitry. Hydraulic system relief valve pressure is specified at 350 bar for primary circuits. The track frame alignment baseline is documented at 165 mm in the maintenance standards. Engine oil pressure for the 1004-4 power unit is required to fall within the 3.4–4 kg/cm² range during high idle operation. The travel motor speed is governed by parameters defined by a 27 mm minimum travel speed threshold. Specific torque values for standard fasteners range from 9.5 Nm for 6 mm threads up to 4050 Nm for 39 mm diameter bolts in high-strength 10.9 applications.

Reference only — always consult a certified technician before performing service on this equipment. An official 315-page Komatsu OEM shop manual covering the PC95-1 hydraulic excavator, documenting engine, hydraulic, electrical, and structural specifications for the 5000007 and up serial number range.