Is it possible (and electrically safe) to reverse the rotation of a Delta # 23-725 bench grinder (this the slow speed 8″ grinder)? I want to put a hard felt wheel on one side and want the wheel spinning away from the tool when I use the tool rest (as opposed to free hand manuerving of the tool edge).
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Replies
Motors of that type can be sometimes be reversed, but the internal wiring has to be designed for it. Being that the motor was designed for a use that wouldn't ordinarily be reversed, the wiring probably isn't there.
A second problem is that there is a risk that the nuts holding the wheels on will unthread themselves if the motor's rotation were reversed.
What I have done in a similar situation is to put the grinder on a lazy susan type base so that it was easy to turn the machine 180 degrees so that I could work from the back of the machine when I wanted the wheels to spin in the reversed direction.
Hope this helps,
John White
thanks for the response - I "forgot" the aspect of the retaining nuts would no longer act to retain the wheel. The lazy suzan approach to turn the entire machine sounds worth exploring. Again - thanks for the advice.
Marty
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