Control and operation
Operating manual
The access and the outfit of the cab
Note! The ladder can only be swung up with the Diesel engine running.
For the rotating access ladder Push the switch S155 until the ladder has reached its top position. When the top position is reached, the ladder is locked and control light H67 goes out. Push the switch S156 to lock the ladder (when locked the red indicator light H68 goes out). Caution! For safety reason, the excavator can only be operated if the ladder is locked in its top position. Otherwise, the red indicator light goes on. This means that the swing and travel movements remain locked. This safety measure can be momentarily by-passed by pushing and holding the button S122 on the control board. The ladder can only be locked after it has reached its upper stop position (H67 is off). The ladder can only be swung up or down when the locking device is in unlocked position (H68 is on).
In case of defect (service batteries out of order, defective solenoid valve or wiring...) avoiding the regular lowering procedure of the ladder, Open valves V1 and V2 to lower the ladder. If an emergency stop is operated, the ladder is lowered automatically.
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copyright © Liebherr-Mining Equipment Colmar SAS 2021
MJFCIFSS
R 9350 E / 11695771
LEC/en/Edition: 03 / 2021
To bring the 45° access ladder into lower position in case of emergency:
