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Jon Elson Jon Elson is offline
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Default Old Grob bandsaw.. no torque/ power




wrote:
Hi all, our old bandsaw stopped working so well. It has no torque/
power and when you turn on the unloaded motor it sometimes runs
backwards.

The thought here is that maybe a start or run capacitor had gone bad...
but we are all mostly clueless when it comes to motors. Any ideas
before I try and get the motor out.

(Oh dear.. I think it's a three phase motor... (no cap))

Ah, well, the running backwards strongly indicates it is running on
single phase. Check the power switch/motor starter to make sure all 3
phases are connecting. Check any fuses. Look for loose/broken wires.
Without knowing what sort of switch/motor starter it has, I can't get
more detailed. It COULD be the motor, but could as likely be something
external.

Jon