Re: Old box fan and 'Lectric Motors 101
IIRC, I used to know a bit about Electric Motors. That was back around 1970, and my memory is poor.
They must be building them to last. I haven't needed to work on one in many years.
But, when it rains, it pours. Now I got 'bout 3 EM's that might need repair.
One is an old K-mart box fan (a Lakewood K-223) that's gave good service for maybe 30 years. I even built a little stand for it ...
So I turn it on hi yesterday and after a few seconds I got a pop and spark out of where the wires enter the motor, and it stops. Today I clean 30 years of crud from the windings etc, reassemble, and test on lo. It runs for 20 secs then does the pop/spark again (and quits). I unplug quickly.
Here's the 'Lectric Motors 101 part. There's windings, brushes, and a rotor inside? Long time ago, it was practical to replace brushes as necessary for some EM's. What do you look for? What can you do/not-do?
It's a shot-in-the-dark, but I'd like to keep the fan going if possible.
I guess this is not a query for folks who pitch/buy- new without thinking about it. Might be a question for a good terminal tinker ...
TIA, Puddin'
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