Komatsu WA250-3 Wheel Loader Workshop Manual (1995-2005)

This workshop manual details the Komatsu WA250-3 Wheel Loader (SN 50001-52999 & 53001+), covering structure, function, testing, and assembly. Ref: SEBM005908

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Document Details

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Document Number / Seller:
25581 / Margaret Hicks
File Size:
40.22 MB
File Type:
PDF
Language:
English
Pages:
740
Printable:
Yes
Category:
Wheel Loader
Last updated / verified
Jan 7, 2026

Models Covered & Key Technical Specifications

Komatsu WA250-3 (SN 50001-52999) | 1995-2005

  • Reference Data: 740 pages cover the Komatsu WA250-3 Wheel Loader for serial numbers 50001 and up.
  • Integral Specifications: The manual includes detailed specs for both WA250-3 (50001-52999) and WA250-3 (53001 and up) models.
  • General Coverage: The document outlines the structure and function of various components, from the engine to the drivetrain.
  • Essential Testing & Adjusting: Provides procedures for testing, adjusting, and troubleshooting specific systems.
  • Baseline Procedures: Details disassembly and assembly steps for proper maintenance and repair.
  • Established Maintenance: Includes maintenance standards and lubrication charts for optimal performance.

Manual Description & Preview

Komatsu WA250-3 Wheel Loader Workshop Manual (50001+)

Technical-Domain: Komatsu Wheel Loader // Technical-Scope: Comprehensive Workshop Manual / Power Train Logic // Technical-Domain: Diagnostics & Repair

Table of Contents Summary

  • Structure and Function
  • Testing and Adjusting
  • Disassembly and Assembly
  • Maintenance Standard
  • Hydraulic Piping

The documentation is partitioned into the following chapters: Power train, Path of power transmission, Torque converter, Transmission, and more.

Structure and Function

This section explains the structure and function of each component, serving as reference material for troubleshooting and including diagrams.

Testing and Adjusting

This section details checks and adjustments required before and after repairs, with troubleshooting charts included.

Disassembly and Assembly

This section outlines the procedures for removing, installing, disassembling, and assembling components.

Maintenance Standard

This section provides judgment standards for inspecting disassembled parts.

Hydraulic Piping

This section covers the hydraulic system, including work equipment and steering circuits.

This manual documents torque specifications for various components to ensure proper thread engagement security.

FAQ

Assess the **critical** calibration settings for this machine? keyboard_arrow_down

14.0 MPa is the critical calibration setting for the steering system's priority valve.

What components have **required** clearance measurements? keyboard_arrow_down

Multiple components require clearance measurements, including the engine valve clearance, with specific values like 0.25 mm for intake valves and 0.51 mm for exhaust valves.

Confirm the **specified** torque specifications for the brake system? keyboard_arrow_down

For the brake system, the specified torque for the caliper assembly is 24.0 Nm, with a locknut adjustment of 44.1 Nm.

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