Description

Liebherr LH150C, LH150M Tier 4F Hydraulic Excavator Service Manual

Excavator Model :
LH 150 C (4f) 71201 and up (Type 1231)
LH 150 M (4f) 86329 and up (Type 1230)
Language: English
Publication: 11826709
Format: PDF
January 2018

Liebherr LH150C, LH150M Tier 4F Excavator Service Manual – 954 Pages
Operator’s manual – 284 Pages

Table of Content of the Service Manual:

• Introduction
• Technical data
• Maintenance
• Drive group
• Cooling system
• Working hydraulics
• Hydraulic components
• Steering System
• Brake System
• Electrical system
• Transmission /Travel gearbox
• Axles / Drive
• Steel components – basic machine
• Working attachment
• Operator’s cab, heating and air conditioning
• Lubrication system
• Slewing gearbox and slewing ring
  
• Equipment / options
• Diagnosis

This manual contains technical data, design and functional descriptions as well as instructions for the operation and the adjustment of machine settings. The document includes a number of drawings, functional schematics and detailed views of units and assemblies of Liebherr hydraulic excavators.

The documentation has been designed to support customer support services, but does of course not replace proper technical training and qualification of the user, and participation in Liebherr operator training courses.
General basic technical information is not included in this manual. For operating instructions and information on spare parts, please refer to the separate documentation.

Manual Extract – Accumulator

Liquids are practically incompressible and are therefore unable to store pressure energy.
To achieve the storage of liquids, the compressibility of a gas is used. In the accumulators used in the machine, “nitrogen” is used as the medium.
The tasks of the accumulator are:
– Storage of pressure oil for the servo control system, brake system and oscillating axle support.
– Cushioning of hoist movements for hydraulic operator’s cab elevation and industrial stick.
The accumulator consists of a hydraulic section and a gas section in a metal pressure vessel.
Accumulators are classified according to their design:
– Diaphragm accumulator 10
– Bladder accumulator 20
– Piston accumulator 30
See design and functional descriptions below.