Komatsu WB140PS-2 and WB150PS-2 Backhoe Loader Shop Manual (WEBM002502)

WEBM002502, from February 2001, is the first of three shop manuals Komatsu issued for the WB140PS-2 and WB150PS-2 backhoe loaders. It covers the earliest machines, from the very first serial numbers.

Fits

WB140PS-2 from serial 140F50001 and WB150PS-2 from 150F50001. The later editions are WEBM004300 (140F50092 / 150F50020 and up) and WEBM004700 (140F50098 / 150F50032 and up), both in our catalog. Pick the one whose range includes your serial.

Quick facts

• Manual Number: WEBM002502 (Feb 2001)
• Models: WB140PS-2, WB150PS-2
• Serials: 140F50001 / 150F50001 and up
• Drive: Torque converter transmission
• Machine Type: Backhoe loader
• Format: PDF, 419 pages

What's in it

The power train chapter explains the torque converter, the transmission and shuttle, and the front and rear axles. There's engine data for the Komatsu 4D106 engines listed. The hydraulics chapter covers the pump, the loader and backhoe valves, the cylinders and the steering. The electrical chapter covers the sensors. Testing, adjusting and troubleshooting comes next, then disassembly, assembly and maintenance standards.

Some pages are printed in Italian as well as English. It's a solid reference for owners and mechanics dealing with shuttle problems, weak backhoe or loader functions, axle work or electrical faults.

Table of contents

• Structure and function: torque converter, transmission and shuttle, front and rear axles
• Engine data for the Komatsu 4D106 engines listed
• Hydraulic pump, loader and backhoe valves, cylinders and steering
• Electrical system and sensors
• Testing and adjusting, troubleshooting
• Disassembly and assembly, maintenance standards

Good to know

If you're new to Komatsu manuals, the layout takes a few minutes to learn and then saves a lot of time. Each system is covered in the same order: how it works, the values it should meet, how to test it, and how to take it apart. Search works on most pages, and printing one procedure for the job keeps the rest of the book clean.

Before you buy

Three editions, three serial ranges. Check yours first.

PDF, 419 pages, English, with some pages also in Italian. Download link straight after checkout. We're an independent seller with no link to Komatsu.