Shopsmith Forums

Thanks, everyone. I finally had time to do the disassembly and it turns out JPG was right. The quadrant is ground up enough to warrant replacement, though the rest of the speed control looks good. And after close inspection I have little confidence in what remains of the control sheave shaft, so I ...

More information... I found this photo in another post:
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Notice how the shaft has that smaller black button and bearing between the quadrant and the shaft? With a little loop and spring that goes around the speed quadrant? I don't have any of that. My speed quadrant is coming in direct ...

It's not electrical.

The source of the spark is from where the speed quadrant is pressing against the end of the shaft. The edge of the end of the shaft looks somewhat burnt. There wasn't much lubrication there so I've gone ahead and re-oiled the sheaves; the lubrication is now improved but I still ...

First off, the machine has been sitting idle about 18 months as my workshop was temporarily taken over as living space. This is not the first time it's been used since I got back in the shop, but pretty close.

I was doing some disk sanding at around speed "F", and for a few moments a loud "roar ...