Discussion:
Low lift speed pulsates

High speed lift seems to work fine. What could be the problem?
  • Posted 23 Aug 2007 01:13
  • By terry_t
  • joined 23 Aug'07 - 3 messages
  • Tennessee, United States
Showing items 1 - 4 of 4 results.
Contactor chattering would be cuased by a low voltage situation. Monitor the voltage,at the contactor coil terminals,and see if you are losing positive(+) or negative(-) voltage. Then trace that circuit back to what controls it.
  • Posted 24 Aug 2007 12:39
  • Modified 24 Aug 2007 12:40 by poster
  • By Truck_Tech
  • joined 30 Mar'07 - 152 messages
  • United States
I should clarify. The pump contactor is cycling in and out. Could this be a pressure switch or were you thinking the pump was running all the time?
  • Posted 24 Aug 2007 01:08
  • By terry_t
  • joined 23 Aug'07 - 3 messages
  • Tennessee, United States
No we have not. We will look into this possibility. Thanks
  • Posted 23 Aug 2007 23:27
  • By terry_t
  • joined 23 Aug'07 - 3 messages
  • Tennessee, United States
Hi Terry. Have you tested the relief pressure setting? Possible bad pump.
  • Posted 23 Aug 2007 10:35
  • By Truck_Tech
  • joined 30 Mar'07 - 152 messages
  • United States

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