Komatsu WA380-7 Wheel Loader Repair Service Manual

Table of Contents

Komatsu WA380-7 Manual

Main sections and selected subjects identified in the source documentation:

• Manuals: Shop Manual and Field Assembly Manual
• Index and Foreword
• Specification
• Structure, Functions, Maintenance Standard
• Standard Value Table
• Testing and Adjusting
• Troubleshooting
• Disassembly and Assembly
• Diagrams and Drawings
• Manual Extract Precautions
• Precautions for installation work
• Tighten all of the bolts and nuts (sleeve nuts) to the specified torque (KES).
• Install the hoses without twisting or interference and fix them with intermediate clamps, if equipped.
• Replace all of the gaskets, O-rings, cotter pins, and lock plates with new parts.
• Bend the cotter pins and lock plates securely.
• When coating with adhesive, clean and degrease the part, and coat the threaded portion with two to three drops of adhesive.
• Clean all of the parts, and correct any damage, dents, burrs, or rust found on them.
• Coat the rotating parts and sliding parts with engine oil.
• When press-fitting parts, coat the surface with molybdenum disulfide lubricant (LM-P).
• After installing the snap rings, check that the snap ring is settled in the ring groove completely.
• When connecting wiring connectors, clean the connector to remove all oil, dirt, or water, then connect them securely.
• When using eyebolts, check that there is no deterioration or deformation, screw them in fully, and align the direction of the hook.
• When installing split flanges, fasten them uniformly and alternately to prevent excessive tightening on one side.
• Start and run the engine at low idle.
• Next, operate the hydraulic cylinder three to four times to the end of its stroke.