Quote:
Originally Posted by SenorZ
Our solution was to rotate the CIM 180degrees, and while tightening it down to pull it as far to the direction "away" from the first gear as possible. That reduced the noise considerably and made it easy to manual turn.
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CIM rotation solved the problem - quiet as can be

. Now I have to flip them back again and let the students figure it out - LOL. Thanks for all the feedback.