Pump Motor Contactor - Technical Troubleshooting discussion in Forkliftaction's forums

Toyota 7FBCU15:
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
Discussion started by Troy_Rimes
Georgia, United States

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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
Reply by ron_k
North Dakota, United States

4kliftman

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