[Rob Frink]

Dan,

I would say that it is from the belts. I've seen it over and over. Some belts run better than others.....even the same type from the same box. I think it depends on humidity changes and if the belt was left on the machine over the weekend.


Here is the quick check to determine belt or machine. Carefully watch to see if the belt moves the same amount at the same spot on the the belt.....say 1/8" every time the belt goes around once....you can even mark that spot on the belt. Since most of the other wheels on the grinder turn 6-15X more revs than the belt...you should expect the belt to jump 1/8" several times for one rev of the belt if you have problems with a wheel or bent shaft.


If this explaination wasn't clear...please let me know and I'll keep working on it.

I'd say with 99% certainty...it's the belts.

Please let me know,

Sincerely,
Rob



edit: grammer/spelling