Sand flee drum sander

Does anyone have a Sandflee drum sander and still have the manuals?
I just picked up a 9” Sandflee and a friend got a 18” one at the same time (and place) but we do not have the manuals and I need to know how to cut the sanding belt.
The manufactor is no longer in business.

Let me know I’ll be glad to pay for copying the book or would be glad to digitize it for us.