Crown FC 4500 AC DRIVE:
Lifting Problem

Dear Swoop,
Thanks for your support, Rollers are okey as free lift working fine, once fork cross the free lift, the main lift cylinder lift approx. 8 inches and then stopped, no pump motor not running (shut off Completely) and no error code showing on display,
  • Posted 17 Nov 2015 05:54
  • Discussion started by qasim_a
  • Sindh, Pakistan
Qasim Afridi
Showing items 1 - 4 of 4 results.
Thanks for the reply Edward, yes I just changed the switch from open to close to make sure the lift is working or not, it's mean I have to change only tilt position safety switch and both lifting and tilt functions will be working fine?
  • Posted 29 Nov 2015 16:58
  • Reply by qasim_a
  • Sindh, Pakistan
Qasim Afridi
you will need to correctly fix the operation of the safety device of the tilt switch.
(not reverse the switch, which, If I understand what you did, you changed the switch from a normally open switch to a normally closed switch).
  • Posted 29 Nov 2015 00:57
  • Reply by edward_t
  • South Carolina, United States
"it's not rocket surgery"
Thanks for the support, I found the tilt position switch faulty, temporarily I bypass that switch ( change the cables Position from lower two points to upper point), mast is lifted to max height without any problem.
but I notice one more fault, the mast tilt down function is not working while the motor is still running only tilt up is working.

your support will be highly appreciated.

thanks again.
  • Posted 28 Nov 2015 20:40
  • Reply by qasim_a
  • Sindh, Pakistan
Qasim Afridi
Check your tilt position switch. When mast is tilted full fwd the machine cuts lift above freelift zone.
  • Posted 18 Nov 2015 03:44
  • Reply by chevotaman
  • Washington, United States
It's all just nuts n' bolts.

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