Made a run on the lathe, turned it off, reset it and it turned on but made a grinding noise like it was hitting something. Took it apart and when I wiggle it a little it comes loose and spins for a second then locks up again. Now it won't turn on at all. I'm guessing the button that that you press to tighten and loosen the nut might be getting stuck? Ideas? Thanks
Porter Cable 7310
Porter Cable 7310