No power - Technical Troubleshooting discussion in Forkliftaction's forums

Cat Lift Trucks (& Caterpillar) M50B:
No power

Calling any old Cat guys. M50B
The customer spent a boat load on repainting and a new battery. 36 volt, currently 37.5 v.
The truck has no guts. It will not even pull over a 2x4. Maxes out at 60 amps.
Any direction would be appreciated.

Posted 12 Dec 2019 01:20
Discussion started by SunnyWrench
Florida, United States

Working for retirement

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Could be an issue with one of the drive motor fields could be an open at a field connection inside the motor. Also check to see if the drive motor is connected correctly. Older DC motors do vibrate although not enough to notice but enough to cause ridged motors connections to break creating an open circuit.

Posted 1 Sep 2021 07:05
Reply by Dave_Crownover
Arizona, United States

Dave Crownover

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