I purchased an oscillating spindle sander by Rigid today; went through setup, which was easy, and installed the 1/12 inch rubber drum and sleeve with the correct washer. The sleeve rides up in use even though I’m using extremely light pressure. It appears there is no pressure on the rubber drum to make a tight fit inside the sleeve. The nut bottoms out before making contact with the washer that sits on top of the rubber drum.
What am I doing wrong? If I’m doing nothing wrong, what’s the fix?
Thanks for any help!