Komatsu WA900-3E0 Wheel Loader Shop Manual Supplement Power Ladder and Added Systems (SEN05654-00)

SEN05654-00 is a 2011 supplement for the WA900-3E0, the 111-tonne loader with a 13 m3 bucket and the SAA12V140E-3 engine. It covers the systems added or changed from serial 60079.

Fits

WA900-3E0 from serial 60079. Komatsu says it covers only the parts that differ from the standard machine. For everything else, use the standard WA900-3E0 shop manual.

Quick facts

• Manual Number: SEN05654-00 (2011)
• Model: WA900-3E0
• Serial: 60079 and up
• Type: Shop manual supplement
• Engine: SAA12V140E-3
• Format: PDF, 170 pages

What's in it

It starts with specs, a weight table and fluids. Then come the cooling system, the power ladder system and its controller, the rear-view monitor, the engine service monitor, the parking brake circuit and their sensors.

The testing section gives standard values, a potentiometer check and ladder position calibration. The troubleshooting chapter is set out by failure code in E, H, K and M modes. Hydraulic and electrical circuit diagrams finish the book.

The power ladder is a safety item on a machine this tall, and when it stops working the loader is often parked. Mine electricians and dealer technicians will find the calibration and fault code pages the most useful.

Table of contents

• Specs, weight table and fluids
• Cooling system, power ladder system and controller
• Rear-view monitor, engine service monitor, parking brake circuit and sensors
• Standard values, potentiometer check and ladder position calibration
• Troubleshooting by failure code, E, H, K and M modes
• Hydraulic and electrical circuit diagrams

Good to know

A supplement like this is easy to overlook, which is why figures from the standard machine sometimes end up being used on a special version. If your machine has the equipment covered here, check these pages before you test or adjust anything in that area, then go back to the base manual for the rest.

Before you buy

This is a supplement. You'll need the base shop manual for everything it doesn't cover.

PDF, 170 pages, English. Download link straight after checkout. We're an independent seller with no link to Komatsu.