Something weird is going on with my belt/disc sander. It runs on an externally mounted 1/2 hp motor. The motor always worked fine until I put in on the sander. When I would turn it on, it would need some "help" to get going (and no the belt is not too tight), but that was the only issue. Then, two days ago, I flipped the switch and it started right up... the wrong way! I switched the clips on the motor... still the wrong way. Switched them back... still the wrong way. What happened??? Now I can't use the belt sander.