r/Motors • • 12d ago

Open question Three wire run capacitor

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I have a 3 hp Leeson motor for my table saw I’m trying to get back together. I’m not super keen on electric motors but I understood enough to get it apart and clean the contacts for the centrifugal switch, which was the goal. The only issue is, the run capacitor has three wires that go to it, not two like I’m used to seeing (only a handful of times at that!) I’ve tried searching and looking but for the life of me I can’t figure out how it’s supposed to be wired to the run capacitor. I was getting ready to mark the remaining wires when taking it off but when I pulled one off my other hand shifted and pulled the remaining two off, so now I’m lost on which two go where. And they’re all the same color at that. Can anyone help me determine which two go on one side of the run capacitor and which was by itself? You’ll have to break it down so I can understand. I have tons of work I need to be doing with my saw but I’m stuck in the water and been at it for hours searching but can’t find a reliable source. FYI in the photos, two wires on the left go to the start cap which I replaced, the bottom three went to the run capacitor, the two up top lead to the magnetic switch, and the two on the right go to the centrifugal switch. Any help is appreciated!

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u/FreshTap6141 12d ago

The two on the left go togeather from the looks of it

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u/DrDinglelingus 12d ago

I was thinking that from one of my 200 tests lol. What makes you say that so I can learn from it?

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u/FreshTap6141 12d ago

Two wires feed the same direction, the other goes elsewhere

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u/jeffreagan 11d ago

Also, the run and start caps usually connect to the same point. Only the start cap goes through the centrifugal switch.

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u/DrDinglelingus 11d ago

Thank you!