Well after tightening the belt, problem persisted, motor pully was loose and could slide on shaft. Could not find diagram to even tell me what the size of the set screw was (think it is a 2.5mm), but it is stuck solid (red substance in it- locktite?). Anyway without being able to loosen it up, can't retighten it obviously. Sent correspondence to ridgid already, but wondering if any others had same problem.
Why can't I get a decent parts diagram for this on the ridgid website?
I really like the saw, but something as simple as this should be easier.