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

Post your Reply

Forkliftaction accepts no responsibility for forum content and requires forum participants to adhere to our rules of conduct. Click here for more information.

If you are having trouble using the Discussion Forums, please contact us for help.

Komatsu FD25T17
Braeside, Melbourne, Victoria, Australia
Hire
Taylor TX175
Coraopolis, Pennsylvania, United States
New - Sale & Hire
Global Industry News
edition #1252 - 16 October 2025
In this week’s Forkliftaction News , we report on the GEP Global Supply Chain Volatility Index which shows Asian supply chains are at their busiest since June 2022 while the US and Europe’s supply chains remain under-utilised. One of the report authors describes the situation as being “as stable as it’s going to get”... Continue reading
Fact of the week
Brussels Airport in Belgium, Europe is the world's largest sales point for chocolate, with over 800 tonnes of chocolate sold annually. This averages out to about 1.5 kilograms sold every minute.