Hello good morning, it turns out that I have a skil orbital hand sander, I used it a lot for quite some time, and at a time like it was locked and made only a starter sound but it didn't move the part of the sandpaper. Disassemble and clean it well, check the bollards where the cito motor shaft starts, everything perfect, when I turn it on it works but when I put the sandpaper and press on the wood it slows down, in a moment until a white smoke, I slap and move but there is no case, when I disassemble it with the naked eye, everything is fine. But there is no case it stops when you want to sand. I don't know whether to discard it or it may be repaired. Cheers