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Westinghouse 1/3 HP Motor Help

GalaxyRat

Well-known member
Joined
Nov 16, 2018
Messages
386
Location
Florida
I'm trying to repair the wires in my motor for a drill press, and I'm wondering if anyone knows where to find some publications or wiring diagrams. This is an early 1940s motor and the wire insulation is crumbling apart and some wires have crude repairs. Most of the wires are in good shape, but some have crumbling insulation where the wire bends. Would heat-shrink tubing be effective for covering those spots? Or should I just use high quality electrical tape so it is flexible? 20200912_204841.jpgIMG_20200911_090542_280.jpg20200912_204851.jpg

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bmwrd0

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Joined
Nov 7, 2010
Messages
5,466
Location
Beaver Fever Oregon
Shrink tubing should work fine for some of the repairs needed, and would be better that tape, in my opinion. But there are a couple spots that need to be removed all together and a new piece Western Unioned in. This is in the third and fifth photos in the second post. Here is a nice pic on how to do that:
https://www.pinterest.com/pin/549439223280577949/

There is a wiring diagram for that exact motor on the data plate, but figure 15 on this page shows it in better detail:
https://ijyam.blogspot.com/2014/01/electrical-control-circuit-schematic.html

In general, the start circuits will have a lower Ohm reading that the run circuits, so that is how to check if you aren't sure which is which.
 
OP
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GalaxyRat

Well-known member
Joined
Nov 16, 2018
Messages
386
Location
Florida
Shrink tubing should work fine for some of the repairs needed, and would be better that tape, in my opinion. But there are a couple spots that need to be removed all together and a new piece Western Unioned in. This is in the third and fifth photos in the second post. Here is a nice pic on how to do that:
https://www.pinterest.com/pin/549439223280577949/

There is a wiring diagram for that exact motor on the data plate, but figure 15 on this page shows it in better detail:
https://ijyam.blogspot.com/2014/01/electrical-control-circuit-schematic.html

In general, the start circuits will have a lower Ohm reading that the run circuits, so that is how to check if you aren't sure which is which.
I will check it out, thank you!

Sent from my SM-G973U using The Garage Journal mobile app
 
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