“We have rewound a motor, and now that it is back in service, our customer says it’s running hot. The frame is getting so hot that he can’t put his hand on it, and now he is blaming us for rewinding the motor incorrectly!”
Has this ever happened to you? You have rewound a motor without changing the design at all; you tested the motor before you sent it out, and everything appeared to be fine. But now your customer wants you to figure out what is wrong, or rewind the motor again.
Before you consider this, there are a few things to check to see if the motor is, in fact, running properly. It is quite possible that the motor ran “hot” before it failed, but what are the chances that someone on-site put their hand to the frame before it had to be rewound?
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