Hey folks. I have a Delta 18" open ended drum sander and I've run into some trouble lately. When I turn the wheel to adjust the height of the bed relative to the drum, I often get a grinding noise and the bed doesn't always move even though the handle spins. I've checked the set screw in the handle and it's tight, as is the set screw just inside the housing that attaches the handle to a long shaft leading to even more gears also seem tight.
I'm not particularly mechanically inclined, so I'm not sure what else to look for. Could too much dust be a problem? I've got a 1 HP dust collector that I use with the sander, but there's still alot of fine dust everywhere.
I would definitely appreciate any advice. Thanks!!