2003 Komatsu WB140-2N / WB150-2N Shop Manual

Get your Komatsu WB140-2N / WB150-2N backhoe loader running like new with this Shop Manual. Provides essential diagrams, troubleshooting, and repair procedures. Part No. CEBM009800.

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Document Details

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Document Number / Seller:
28460 / Harold Collins
File Size:
110.21 MB
File Type:
PDF
Language:
English
Pages:
406
Printable:
Yes
Category:
Backhoe Loader
Last updated / verified
Feb 15, 2025

Models Covered & Key Technical Specifications

Komatsu WB140-2N and WB150-2N (CEBM009800) Shop Manual: 2003 Blueprints

Komatsu WB140-2N & WB150-2N (CEBM009800) -- 2003 Backhoe Loader Manual. Analytical & Overview Documentation | Kit.

  • Approved Size Parameters: 50 mm is rated at a standard size for shafts and holes.
  • Baseline Installation Footprint: For mounting pins, provides a clearance limit of 0.114 mm Framework.
  • Primary Coupling Torques: is designed for piston rod and cylinder heads at 2845 Nm.
  • General System Fill: is specified as 45 C for oil temperature.
  • Certified Power Framework: supports a maximum hydraulic pressure of 15 MPa.
  • Reference Mass Specs: is calibrated to a 40 kg limit for bucket cylinder tests.

Professional Workshop Service Manual & Technical Specifications

Komatsu WB140-2N and WB150-2N (CEBM009800) Shop Manual: 2003 Blueprint-Vault

Engineering-Base: CEBM009800 / Reference-Category: Backhoe Loader / Engine-Type: 4D106-1FA Properly mandating the operation and maintenance of your Komatsu WB140-2N and WB150-2N backhoe loaders, this manual outlines critical procedures and specifications. Featuring a modular arrangement of sections, it details component structures, diagnostic routines, and assembly sequences.

Metric Diagnostic-Logic Calibration-Standards
Technical Data Covers core system specifications Details operational parameters
Component Analysis Explains structure and function Offers troubleshooting reference
Repair Procedures Outlines disassembly and assembly Details maintenance standards

The manual includes coverage of power train systems, including the hydraulic convertor-transmission circuit. Brake system specifications are included for testing the circuits and pump tightness, as well as leak tightness for the braking group. Safety procedures are documented for various operations, including safe handling of heavy components and proper tool usage. Fluid capacities are listed for the engine, along with specifications for oil temperature and fan belt tension. Tool requirements are listed for special tools such as feeler gauges, pressure gauges, and tachometers, essential for accurate adjustments and diagnostics.

This document meticulously details the disassembly and assembly of components, including the front and rear axles, steering cylinder, and the various control valves. Torque specifications for bolts and nuts are provided to ensure proper clamp load consistency. Coverage extends to the hydraulic pump, including its function, structure, and operation, as well as the PC valve, LS valve, and servo piston. It also details the unloading valve, priority valve, and the steering control system pressure, offering a comprehensive look at the machine's hydraulic systems. Specific procedures for air conditioning unit testing and troubleshooting are also included, ensuring optimal performance and comfort.

FAQ

What components have **documented** safety precautions? keyboard_arrow_down

Safety precautions are documented for components like the accelerator pedal, brake system, and when handling heavy components during disassembly and assembly.

Confirm the **precise** lubrication requirements. keyboard_arrow_down

Oil temperature specifications are listed for the engine (45-55°C) and power train (80±5°C) to ensure proper lubrication.

What tools are **proper** for testing parameters? keyboard_arrow_down

Proper tools include feeler gauges for valve clearance adjustments, pressure gauges for hydraulic systems and brake tests, and tachometers for engine speed checks.

Identify the **standard** diagnostic procedures. keyboard_arrow_down

Standard diagnostic procedures involve checking engine speeds under load, compression pressures, and hydraulic oil pressure to identify potential malfunctions.

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Reviews (3)

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New
This service manual is incredibly detailed and easy to navigate. The troubleshooting section is particularly helpful!
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I had a smooth download experience, and the information provided is top-notch. Highly recommend for anyone with a WB140 or WB150!
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Rated 5 out of 5 stars