Discussion:
Pump Motor Contactor

Pump motor contactor assembly keeps burning up.... When replaced the contactor assembly, it will short out. As soon as action lever is pressed, the clamps will move then stop almost immediately. i have checked the voltage and it reads 36V as it should.. I also checked the resistance of the contactor assembly and it reads 20.1... Any idea why they keep burning up..
  • Posted 18 Sep 2020 00:49
  • Modified 18 Sep 2020 00:50 by poster
  • By Troy_Rimes
  • joined 18 Sep'20 - 1 message
  • Georgia, United States
Showing items 1 - 1 of 1 results.
Check the amp draw of the pump motor. Use a clamp on meter to determine if it's excessive. Could have a bad bearing, field short. Battery condition is also something to look at. What's the draw and load voltage. If your drawing to much on a old battery, it will damage contractors
  • Posted 13 Nov 2020 00:24
  • By ron_k
  • joined 2 Apr'15 - 121 messages
  • North Dakota, United States
4kliftman

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.

Upcoming industry events …
September 4, 2025 - Melbourne, Australia
September 17-18, 2025 - Miami, FL, United States
October 21-23, 2025 - Barcelona, Spain
Global Industry News
edition #1244 - 21 August 2025
In our feel good story for the week, we report on a donation from Wisconsin-headquartered Big Joe Forklifts to the University of Wisconsin-Madison’s College of Engineering, after discovering the institution was still using one of its 1960s walkie stackers... Continue reading
Movers & Shakers
Jan Zuurbier Jan Zuurbier
Global CEO, Swisslog
Board member, UKMHA
Strategic advisor, Roboteon
CEO Americas, Hai Robotics
Latest job alerts …
Orlando area, United States
Highland, IL, United States
Dallas, TX or Lexington, KY, United States
Tacoma, WA, United States