I done goofed, need help putting motor back together...

[Scimonetti]

Title says it all... A couple months ago I pulled apart this 1/3 hp GM ridgid frame delco appliance motor a guy said was junk. It ran fine after blowing sawdust out of it. I took it apart to service and clean and took pictures of the terminals. Well, I can't find them now, they were probably on the sd card that was corrupted.



It doesn't have a capacitor so there's only 3 loose wires. 2 blacks, 1 green and 2 terminals

 

[Scimonetti]

Is it a split phase? It doesn't have a capacitor but had a centrifugal switch.

 

[Techie1961]

I would hazard a guess that the wire with the square terminal on it goes to the hole in the switch that has a square hole. Must be a bolt and nut that go there (looks like one photo has it in the hole). The other two who knows. I usually try to see the way the wires naturally want to fall and look for witness marks on things.

 

[Techie1961]

Witness marks are going to be your friend. If you look carefully, you will see small differences in the markings where the wires and nuts were attached.

Also look at the sawdust. There won't be any where the connections were.

 

[wild cowboy]

a trick I learned about 10 years ago - you have a camera in your pocket right now - your phone!

I take pics of everything before disassembly, even things I feel certain I will not have any trouble remembering, you never know when they will come in handy, and it only takes 15 seconds!

 

[Scimonetti]

I don't think I even had to worry about putting it back together... The other side is much worse one of the windings is burned out.

 

[Alan Douglas]

They look all right to me. The insulation is different on the start winding.

 

[BFHtime]

a trick I learned about 10 years ago - you have a camera in your pocket right now - your phone!

I take pics of everything before disassembly, even things I feel certain I will not have any trouble remembering, you never know when they will come in handy, and it only takes 15 seconds!

I did this during an engine swap, with many modifications. The phone operating system crashed, my phone had to be reset. I lost all my pictures. Mostly of wiring.

Make sure to back up your photos!!!!!!!!!!!!!

 

[Kracin]

I don't think I even had to worry about putting it back together... The other side is much worse one of the windings is burned out.

grab your multimeter and test the windings, don't just go by eye unless you see something severely melted.

 

[Danglerb]

Spare parts.

 

[Techie1961]

grab your multimeter and test the windings, don't just go by eye unless you see something severely melted.

Exactly. The sawdust doesn't look like it got hot so it was likely running with the windings looking like this. I would never sell this to a customer but for your own use, it should be okay.

 

[Kracin]

Is that just testing the resistance through the windings?

i mostly deal with 3ph motors, but typically if you are checking windings you'll check resistance between the windings to make sure they are all equal, and check them all to case ground, which none should be grounded or even registering on a normal multimeter. the only other time you'll have an issue when nothing is grounded out and having a bad motor is if the insulation is shot and you'll need a megger to determine that for sure. but if it doesnt look or smell burned, you're probably gonna be alright. make sure to clean out that sawdust as best you can without chemicals that can harm the internals. something for electrical that is light duty after blowing it all out.

its a 220v motor i assume? there should be a lot of repair and test videos on youtube that can give you a good idea of how to approach it, don't toss it though. not til you're sure, even a tired old electric motor has a use for a good diy'er