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Electric motor help?

rockdog57

Getto fab garage owner
Joined
May 21, 2020
Member Number
868
Messages
586
Loc
Lindon, Utah
Click image for larger version Name:	C3D3967E-ED16-4573-9F8E-A3C91C705A5D.jpeg Views:	3 Size:	590.0 KB ID:	178494 Click image for larger version Name:	C3D3967E-ED16-4573-9F8E-A3C91C705A5D.jpeg Views:	3 Size:	590.0 KB ID:	178494 Click image for larger version Name:	C3D3967E-ED16-4573-9F8E-A3C91C705A5D.jpeg Views:	3 Size:	590.0 KB ID:	178494 I’ve got this delta grinder of my dads. From research it was made in 1956. It has ran fine in the past, but I think it was wired wrong. When you touch the body it shocks you. I can’t find a wiring schematic on it any where. In the little info I could find online it shows the motor as 115/230 volt. On the tag it only shows 115. It is model #23-105. The problem is it has two black leads and two purple leads. I don’t have a clue what is hot and what is neutral. Electric gurus please help me out here please!
 
Last edited:
Just a guess but the purple wires go to a capacitor and the black are the line wires.
 
Nothing to add on the wiring, but here is some original advertising.

27-0.jpg
 
I have one that looks incredibly similar to that.

I'll have a look under it.
 
The old add was where I got what little info I have. As far as I know it has never had a start capacitor on it. Doesn’t mean it didn’t start out with one. The wire colors are what throws me. It’s a good old grinder, they don’t make em like that anymore. I just don’t want to electrocute one of the neighbor kids.
 
I’m not too good at electrical. How would I do that?

Take your multimeter set to ohms then touch each of the wires with one lead and the case with the other.
I am still betting there used tobe a capacitor held on by the stud on the bottom
 
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