Liebherr Litronic Wheel Excavator Service Manual

Product Overview

The Liebherr Litronic Wheel Excavator Service Manual is designed for a range of models, providing comprehensive technical information and repair guidance for hydraulic excavators. This manual covers models including the R900B, R904, R914, R924, R934, and R944.

Applicable Models

• R900B from serial 6001 (Type 664)
• R904B from serial 6001 (Types 668, 669)
• R914 Standard, R914HD-SL, R914HD-S from serial 6001 (Types 640, 641, 642)
• R924HD-SL, R924EW from serial 6001 (Types 645, 646)
• R934HD-SL, R934HD-S, R934EW from serial 5001 (Types 647, 648, 649)
• R934B HD-SL, R934B HD-S, R934B EW from serial 5001 (Types 923, 924, 925)
• R944HD-SL, R944HD-S from serial 5001 (Types 650, 651)
• R944B HD-SL, R944B HD-S from serial 5001 (Types 650, 651)

Language: English
Publication: 8504335
Format: PDF
Publication Date: March 2002
Learn more about the Excavator Models

Key Features

• In-depth technical data and maintenance guidelines
• Detailed sections on engine, hydraulic system, and electrical system
• Comprehensive instructions on special attachments and additional hydraulic installations
• 1233 pages filled with drawings, schematics, and diagrams

Benefits

• Enhances understanding of the excavator’s design and functionality
• Enables precise troubleshooting and repairs
• Offers step-by-step guidelines for maintenance tasks and adjustments

Usage Recommendations

• Ideal for technicians handling routine maintenance and repairs
• Essential for troubleshooting complex hydraulic and electrical issues
• Use graphical schematics to simplify repair processes

Table of Contents

• 1 General Information
• 2 Tools
• 3 Technical Data / Maintenance Guidelines
• 4 Engine
• 5 Coupling / Splitterbox
• 6 Hydraulic System
• 7 Hydraulic Components
• 8 Electrical System
• 9 Swing Gear
• 10 Swing Ring
• 11 Travel Gear / Two Speed Gear Box
• 12 Track Components / Axles
• 13 Steering System
• 14 Oscillating Axle Stabilizer
• 15 Brake System
• 16 Special Attachments / Additional Hydraulic Installations
• 17 Cab / Air Conditioning System
• 18 Undercarriage / Uppercarriage Attachments
• 19 Arrangement of Tanks

Technical Insights

The manual delivers technical knowledge on the servo-control circuit of the excavator, highlighting features such as:

• Hydraulic control of spool valves in control valve blocks
• Installation of two pilot control joysticks for attachment and swing functions
• Foot pedals for forward and reverse travel, featuring pilot control valves
• Hydraulically moved spool valves proportional to lever or pedal movement

The manual describes maintenance-free pilot controls and specifies functions in sub-groups 7.50 and subsequent sections. For illustrative diagrams and in-depth descriptions, refer to the provided