Liebherr Fault Code
Free · no signup0x017E
Mast Erect / Lower Function Inhibited
System
Mast / Kinematics
Symptom
Mast Erect / Lower Function Inhibited
Diagnosis & fix steps
LOGIC: Mast Backstay Support Cylinder Length Sensor Implausible.
ACTION: Check draw-wire linear transducer mounted along backstay cylinder. Verify 4–20mA feedback against actual physical stroke length; calibrate mast geometry zero-points in Litronic service mode.
Red Seal field insights
Kinematic Geometry: Litronic calculates leader center-of-gravity dynamically; sensor disparity blocks backstay adjustment to prevent tipping or leader structural overload.
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