|Forum topic by Holbs||posted 04-17-2016 05:06 AM||846 views||0 times favorited||5 replies|
04-17-2016 05:06 AM
Finally getting back in the shop after a month hiatus. I’ve been working on new blast gates and my Jet 15” planer motor woes. Last month, I went to turn on the planer. The motor hummed but no belts turned. Oh crap… I can not afford a new 3HP motor. So, investigation and research time…
The Jet 3HP motor has a start capacitor of 500 MFD. I took this unit down to my local motor repair place (the kind of place that rewinds motors and mostly work on 3phase boys). And they verified it was a faulty capacitor. Oddly enough, there were no physical / visual identifiers of it being bad. A tester was the only method. They sold me a somewhat similar brand with different terminals. Brought it home, and this was the test:
Hooked it all up and the motor starts flawlessly. Whew. Now to re-install back into the planer. Just wanted to let other LJ’s know about start capacitors and easy/cheap fixes.
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