Liebherr ER934C, ER944C, ER954C, EP934C, ER944C, ER954C Excavator Service Repair Manual

PIN/Type:
ER934 C from serial number 27082 – Types 1295 ,1361, 1382, 1429
EP934 C from serial number 27082 – Types 1295 and 1429
EP944 C from serial number 25251 – Types 1172 and 1173
ER944 C from serial number 28053 – Types 1340, 1408 and 1430
ER954 C from serial number 28882 – Types 1326 and 1431
ER954 C from serial number 32643 – Types 1380 and 1425
Manuals: Operators Manual, Repair Manual

Table of Content of the ER934C, ER944C, ER954C, EP934C, ER944C, ER954C Manual:

General information
Tools
Technical data / Maintenance guidelines
Engine / Motor
Coupling / Splitterbox
Hydraulic system
Hydraulic components
Electrical system
Swing gear
Swing ring
Travel gear
Options
Cab / Heater / Air conditioning system
Central lubrication
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: Bleeding the line break safety valves

The LBS – valves must be bled in case delays or irregularities are noticed when actuating the corresponding hydraulic cylinders. The bleeder screw 40 designed for bleeding action is mounted to the control cover 26 of the LBS – valve.

– Lower the working attachment to the ground and position so to ensure good accessibility to the LBS – valve to be bled and to the bleeder screw.
– Unscrew the bleeder screw 40 by approx. one complete turn.
– Slowly actuate all the way to the stop the pilot control valve, in direction of the lowering movement which is locked by the LBS – valve.
– Maintain the movement actuated for approx. one minute, resp. until it can be noticed, that bubble free oil escapes from the bleeder screw.
– Screw in the bleeder screw 40 all the way, and tighten the screw to the prescribed torque.