Liebherr R 900 B Excavator Service Manual

The R 900 B digs, loads and moves material on excavation, utility and quarry jobs, and it works hard all day. When it goes down out of warranty, the person under it is usually a shop mechanic or fleet technician who needs the repair steps, not a guess. This service manual is the workshop book for that job. It covers the R 900 B and the R 944 B.

What this manual helps you do

• Trace the hydraulic system and work through the hydraulic components when a function is slow or dead.
• Check technical data and follow the adjustment steps for the engine and coupling splitterbox.
• Rebuild the swing gear and swing ring, or replace worn parts in them.
• Diagnose electrical system faults with the wiring and electrical section in front of you.
• Service the travel gear and track components, and keep the greasing system working.

Who this is for

An independent repair shop, rental fleet mechanic or dealer technician who is fixing an R 900 B or R 944 B in-house. It also suits plant maintenance staff who keep one of these machines running and want a procedure to follow.

FAQ

Q: What do I receive and how is it organised?

A: You get one PDF file of 1,184 pages in English. It is arranged by section, from general information and special tools through technical data, engine, hydraulics, electrical, swing, travel and track, cab heater, greasing system and special attachments.

Q: Which machine does it fit?

A: The title reads "R900B and R944B Hydraulic Excavator Service Manual," so it applies to the R 900 B and the R 944 B.

Q: How does it fit the job I'm doing?

A: If you're pulling a pump, resealing a swing drive, chasing an electrical fault or checking a track component, you'd expect to find the matching section and the special tools list to go with it. Work from the section that matches the system you're in.

Keep it on the shop computer or tablet and work through the repair from the first teardown to the final check.

Click here to view the preview (PDF)

Models covered by this manual

This service manual is also used for one further Excavator model: R 944 B. Check the model and serial number on your data plate before ordering.

Table of Contents:

• general information
• Special tools
• Technical data
• Engine
• Coupling spilitterbox
• Hydraulic System
• Hydraulic Components
• Electrical system
• Swing gear
• Swing ring
• Travel gear
• Track components
• Cab heater
• Greasing system
• Special attachments

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