Liebherr LR 611, LR 621, LR 631, LR 641 Crawler Dozer Repair Service Manual

Crawler Dozer Applicable Model : LR 611, LR 621, LR 631, LR 641
Language: English
Format: PDF

Liebherr LR 611, LR 621, LR 631, LR 641 Crawler Dozer Repair Service Manual – 812 Pages
Bulldozer Operating manual – 356 Pages

Table of Content of the Service Manual:

• Introduction
• Technical Data
• Maintenance
• Drive Group
• Cooling System
• Working Hydraulics
• Travel Hydraulics
• Hydraulic Components
• Steering System
• Brake System
• Electrical System
• Final Drive
• Track Components
• Attachments – front
• Attachments – rear
• Main Frame – Add On Components
• Tank Arrangement
• Operators cab, heating and air conditioning
• Special Equipment
• Additional Documentation

This service handbook is designed for trained specialists of the Liebherr organisation and their dealers.
This service handbook contains special knowledge for repairing Liebherr construction machines. Basic specialist knowledge on electronics, hydraulics, mechanics and engine technology is not contained in this service handbook. Therefore specialized training and qualifications are necessary. Liebherr recommends participation in the Liebherr training program for construction machines.

In this service handbook you will find information on LR 611, LR 621, LR 631, LR 641 Crawler Dozer:
– Special tools
– Technical data
– Maintenance intervals and maintenance tasks.
– Testing and adjustment tasks
– Structure and function descriptions
– Removal and installation tasks
– Circuit diagrams, hydraulic plans and technical drawings You will find information on controls and operation in the operating instructions.

Information on spare parts are in the spare parts catalogue.