Komatsu PC80MR-3 Hydraulic Excavator Shop Manual PDF Download

Description

Komatsu PC80MR-3 Shop Manual Overview

This comprehensive shop manual provides detailed technical information for servicing the Komatsu PC80MR-3 hydraulic excavator. It covers the machine from serial number PC80MR-3 F00003 and up, with publication number WEBM008601. The document is structured for workshop use and includes everything needed for accurate diagnosis, repair, and reassembly.

Models and Serial Range Covered

This manual applies specifically to the PC80MR-3 hydraulic excavator, serial numbers PC80MR-3 F00003 and up. The engine is identified as the 4D88E-5KFD. No other models are covered in this document.

Main Systems and Subjects Included

• Structure and Function – power train, swing circle and machinery, track frame, idler, rollers, sprocket, track shoes, swivel joint, travel motor, work equipment cylinders, solenoid valves, control valve, CLSS system, swing motor, attachments and PPC valves
• Testing and Adjusting – standard technical data, engine checks, pump features, pressure testing and regulation, travel deviation and speed, leakage tests, air-conditioning checks, special tools
• Disassembly and Assembly – removal and installation procedures for engine components, pumps, swing motor and reduction gear, control valve, PPC valves, fuel tank, control modules, cab, cylinders, track assemblies and more
• Other – hydraulic circuit diagrams (standard version) and electrical diagrams

Repair, Testing and Maintenance Coverage

The manual enables full workshop capability including measurement of engine speed, compression pressure, valve clearance, injection timing, oil pressures, hydraulic system pressures, travel performance, cylinder drift, and internal leakage. Detailed step-by-step removal and installation instructions are provided for major components together with tightening torque values, special tool lists, and safety precautions. Oil and coolant quantity tables, standard torque charts, and conversion tables support accurate service work.

Why This Manual Is Useful

Technicians and owners gain precise guidance for diagnosing and correcting performance issues on the PC80MR-3, from hydraulic pressure regulation and CLSS system operation to complete component overhaul. The clear structure-and-function explanations combined with testing data and disassembly sequences reduce guesswork and support correct reassembly to factory specifications.

Instant PDF download – available immediately after purchase for use on any device.