Cat Lift Trucks (& Caterpillar) GC60K1:
GC70K Cat no hydraulics

I have a 2013 Cat GC70K with no hydraulics. There is a solenoid on top of the hydraulic control valve that is getting power, but nothing happens on any of the 4 functions. There is usually a unload solenoid fuse that blows in this type of issue accompanied by no forward or reverse, but this has directional travel, just no hydraulics. There are 2 wires going into the solenoid, one has power, meaning the seat switch is delivering power and the fuse isnt popping. You have to remove control valve to replace solenoid, I am hoping someone has a better plan?
  • Posted 27 Jan 2022 05:07
  • Discussion started by Gassan
  • California, United States
Norcallifttruck@aol.com
www.norcallifttruckrepairs.com
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Just a guess but did you check the pressure before the control valve to see if the pump is building pressure. also most cats used a drive shaft to drive the pump make sure it is not striped could have bad relief valve l would check pressure before going that root
  • Posted 29 Jan 2022 12:11
  • Reply by Scott_
  • Pennsylvania, United States
Scott

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