Liebherr crane LTM 1400

[Nik54]

Good day to all,any one to assist with the crane Liebherr LTM 1400,model year 1998.It is not unlocking first section of the boom.Solenoid valve is OK,power is missing on the wire No 110.
Many thanks in advance

 

[CraneMechanic73]

Curious, T1 section on extend or retract?? Have you tried a tele reset?

 

[Nik54]

Curious, T1 section on extend or retract?? Have you tried a tele reset?

Thanks for reply,we found that somehow cable for pressure sensor(4core)was broken.Most probably while boom was disassembled to fix some leaks and assembled recently.