Help with Wiring Two Speed Packard/Sunlight 110 fan Motor

[Pittsjock]

Greetings. I cross posted this in the Craftman motor thread.

I have a 1950's era Homart house fan that we retired to our basement after installing AC. It has the original two speed, Craftsman 115.7042 110v motor.

I pulled it out over the weekend to install in my shop - fired right up after oiling it up, but the wiring was severely deteriorated.

A buddy stopped by yesterday as I was preparing to rewire. I had to take a call and he managed to remove all of the wiring without marking anything. We rewired as he remembered and nothing is now working. We haven't smoked anything yet, so I hope no damage done.
After fiddling and researching, I understand what the centrifugal switch is doing - but don't understand how to wire it correctly to start and run much less get both speeds.

Any help most appreciated.
.

 

[micromind]

Since there are 3 terminals, I'd say one is the common (neutral), one is hot for low speed and one is hot for high speed.

Since there are no wiring diagrams, you'll need to experiment a bit. Just connect 120AC across 2 of the terminals. It'll work or it won't. Eventually you'll get the proper connections.

As long as a mis-connection is energized for less than 5 seconds or so, it won't hurt anything.