There was a 'refurb' kit of sorts you used to be able to buy from I think musicdirect of chicago...
My center spindle broke off and I had to replace it, which if you follow the directions of the kit, works pretty well. I've had no problems since and that was maybe 10 years ago. Also the felt "lips" around the vacuum slot need replacing ever so often and replacements were part of the kit if I recall.
My center spindle broke off and I had to replace it, which if you follow the directions of the kit, works pretty well. I've had no problems since and that was maybe 10 years ago. Also the felt "lips" around the vacuum slot need replacing ever so often and replacements were part of the kit if I recall.