I have an old B & D 24" Belt Sander that has become a problem. The belt keeps tracking off the sander. The sander had two adjustments. One is a lever that will reduce belt tension and makes it easy to replace the belt. The other control is a knob under spring tension that can be turned either clockwise or counter clockwise. I suspect this is to correct a tracking problem. However, I have tried adjusting this knob while running as well as in an off position. In neither case have I been able to get the belt to track down the center.
I haven't tried taking it apart as I don't know what I am doing. Can anyone offer a suggestion on how to repair this belt sander?