Komatsu WB140PS-2 and WB150PS-2 Power-Shift Backhoe Loader Shop Manual (WEBM004700)

WEBM004700 is the latest of the three WB140PS-2 and WB150PS-2 shop manuals, for machines from the later serial numbers on.

Fits

WB140PS-2 from serial 140F50098 and WB150PS-2 from 150F50032. Earlier machines use WEBM002502 (from 140F50001 / 150F50001) or WEBM004300 (from 140F50092 / 150F50020). We stock all three.

Quick facts

• Manual Number: WEBM004700
• Models: WB140PS-2, WB150PS-2
• Serials: 140F50098 / 150F50032 and up
• Drive: Power-shift
• Machine Type: Backhoe loader
• Format: PDF, 492 pages

What's in it

It covers the power-shift transmission, the front and rear axles, the hydraulic pump, the loader and backhoe valves, the cylinders and the steering. The electrical system and sensors follow. Testing, adjusting and troubleshooting gives the pressures and procedures, then disassembly and assembly and the maintenance standards with wear limits.

Owners and mechanics use it for shuttle and transmission faults, axle and brake work, and weak or slow hydraulic functions. A few pages carry a PC15R-8 footer from the original file, but the content is for the backhoes.

Table of contents

• Structure and function: power-shift transmission, front and rear axles, hydraulic pump, loader and backhoe valves, cylinders and steering
• Electrical system and sensors
• Testing, adjusting and troubleshooting
• Disassembly and assembly
• Maintenance standards and wear limits

Good to know

A tip from shops that use these books every day: read the structure and function pages for a system before you start testing it. Knowing how the valves and circuits are meant to work makes the test results much easier to read. The standard values then tell you whether a reading is normal, borderline or out of spec, and the wear limits decide whether a part goes back in.

Before you buy

If your serial is lower than the numbers above, you need one of the earlier editions.

PDF, 492 pages, English. Download link straight after checkout. We're an independent seller with no link to Komatsu.