Reversing AC motor rotation
#1
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Reversing AC motor rotation
Similar questions have been asked here before but didn't address my particular problem. I have a new split phase AC motor (for drill press) that I need to reverse the rotation of. The motor is constructed so that reversing rotation is easily accomplished. It even says right on the motor that to reverse rotation, switch the red and black leads. Everything easily accessible. No problem. Simple, right? Except that switching the leads does not in fact reverse the rotation. I've switched them back and forth 5 times now and it always rotates in the same direction; the wrong way. So my question is: what is causing this? And what can I do to rectify the situation?
Craftsman Split phase AC motor. 115V 60 HZ 1/3HP Model #113.12037
(Getting knowledgeable help from Sears has proved impossible)
Thanks in advance----
Craftsman Split phase AC motor. 115V 60 HZ 1/3HP Model #113.12037
(Getting knowledgeable help from Sears has proved impossible)
Thanks in advance----
#2
Welcome to the forums.
The red and black lines connect to the start winding. If the motor is already spinning.... reversing those wires will do nothing.
The motor must be started with the wires reversed.
The red and black lines connect to the start winding. If the motor is already spinning.... reversing those wires will do nothing.
The motor must be started with the wires reversed.
#3
Look at the motor wires and see if you can find two wires with labels stating T5 and T8. If so swap their positions and your motor will run the opposite direction.
Most likely the red and black leads are the input voltage.
Good luck!
RR
Most likely the red and black leads are the input voltage.
Good luck!
RR


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So my question is, what would cause it to not reverse when the leads are reversed (the motor is unplugged and stopped when the wires are switched). As the picture below depicts, the wires to be switched are clearly illustrated. Could it have anything to do with the house wiring?