Cat Lift Trucks (& Caterpillar) C3500:
Hydraulic problem

All hydraulic functions work fine except that it lowers much to slow, what controls the flow when lowering (where is the flow control valve located)?
With lowering too slow being the only problem, do you have any thoughts on whether it is the safety valve or the flow control valve?
  • Posted 14 Mar 2018 04:39
  • Modified 15 Mar 2018 00:07 by poster
  • Discussion started by keith_e
  • Georgia, United States
Showing items 1 - 4 of 4 results.
Thanks for your time to respond. I will try the flow control valve first and if no change, then the safety valve.
  • Posted 17 Mar 2018 00:21
  • Reply by keith_e
  • Georgia, United States
Flow control in the main valve is a guess.
  • Posted 16 Mar 2018 07:00
  • Reply by mrfixit
  • New York, United States
Any thoughts on which one is causing the slow lowering?
  • Posted 16 Mar 2018 04:53
  • Reply by keith_e
  • Georgia, United States
The flow control valve is on the top of the control valve in line with the lift spool. It has a screw and lock nut sticking out. The safety valve, in case a hose ruptures, is at the bottom of the right side lift cylinder.
  • Posted 14 Mar 2018 21:58
  • Reply by mrfixit
  • New York, United States

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