Hyster H80C:
lifting problem

hello have a 1977 H80 with a perkins engine. tilt seems fine but will not lift any weight. forks go up very quickly when empty but put on a few ton and no lift. can jerk hoist lever and cylinder will go up tiny bit with each jerk of lever. also forks come down very slowly when lowering. what can I test?
  • Posted 27 Oct 2014 12:30
  • Discussion started by Johnnyb
  • Ontario, Canada
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Thanks so much Swoop. Will do these when I get back from golf. Heading for Santee tomorrow for 3 days and then to Myrtle Beach for 10. Will wave if I see you!!!
Thanks again.
  • Posted 28 Oct 2014 04:23
  • Reply by Johnnyb
  • Ontario, Canada
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check the relief valve in the main control valve.
might have a broken spring in it.

next would be the safety valve at the cylinders and lastly check the cylinder packing.

pressure is bypassing somewhere
  • Posted 27 Oct 2014 23:45
  • Reply by swoop223
  • North Carolina, United States
You've been swooped!
swoop223@gmail.com
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