I have an old Clay Boss wheel, not sure how old, maybe 15 years or so. It has not had a lot of use and has sat for a few years. My daughter was using it recently and said she felt it was off center, but not sure. It was definitely making a scraping noise. I have not tried to center clay on it yet but I did take the guard off the bottom to check the belt. The belt seems fine. But the noise is constant. It’s like it’s hitting something at the same spot during all the rotations. I have sent a note to speedball to see if they have any recommendations, but thought I’d ask here. I don’t think there any way to just lift the wheel head off without unbolting it, but I’m wondering if something needs cleaning. I did take a video and when looking underneath it I did wonder if it was not super even when it was turning. Any advice?