Liebherr R900C, R904C Litronic Wheel Excavator Manual

Product Overview

Explore comprehensive service and operation guidance with the Liebherr R900C and R904C Litronic Wheel Excavator Manual. This manual is essential for owners and operators of select Liebherr wheel excavator models. Available in PDF format, this manual, published in November 2011, includes detailed instructions to optimize the performance and longevity of your equipment.

Applicable Models

• R 900 C EDC Litronic: Serial number 43272 and onwards (Type 1076)
• R 900 C Litronic: Serial numbers starting from 15329 (Type 971 Std / 981 HDS / 982 HDSL)
• R 904 C Litronic: Serial number 12305 and onwards (Types 983 HDSL 2250 / 984 Std 2000 / 985 HDSL 2000 / 993 EW / 1017 Std 2000 / 1018 SLC 2250)

Key Features

• Language: English
• Publication Number: 10069965 & 10301850
• Service Manual: 1054 and 1377 pages
• Operation and Maintenance Manual: 230 pages

Benefits

• Provides detailed technical data and maintenance guidelines.
• Includes comprehensive design and functional descriptions.
• Contains numerous diagrams and detailed views for ease of use.
• Essential for troubleshooting and servicing to enhance equipment life and performance.

Table of Contents – Service Manual

• General Information
• Tools
• Technical Data / Maintenance Guidelines
• Engine
• Coupling / Splitterbox
• Hydraulic System
• Hydraulic Components
• Electrical System
• Swing Gear
• Swing Ring
• Travel Gear
• Track Components
• Options
• Cab / Heater / Air Conditioning System
• Central Lubrication

Usage Recommendations

• Designed to assist customer support services with accurate and reliable information.
• Recommended supplementary material for those who have undergone Liebherr operator training.
• Ideal for facilitating efficient diagnosis and repair operations.

Note: The manual does not replace professional technical training or the qualification process for equipment handlers. Operators are encouraged to participate in official Liebherr training courses.

Manual Extract: Pressure Valves and Feed Valves 511

The servo-controlled pressure relief valve 511, designed as a cartridge, is integrated into the control valve block 100. It features a hydraulic pressure cut-in stage for two distinct pressure ranges. This functionality ensures that, if pressure becomes excessive, damage to weak points like threaded unions or hydraulic hoses is prevented by a pre-designed break point, safely directing the pressure elsewhere.