Model #1131931 CRAFTSMAN Welder

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Question and Answers

Q:

Replacing Plug on old 230 vac Welder

A:

Replacing old wiring is a good safety precaution for equipment. While you wait for the expert review, you might also find some ideas at a welding forum I attached below.

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Barbara H. -
September 03, 2011
A:

You are correct. Older welders did not use 120 volts so there was no neutral wire from the plug to the welder. It is important that the outer case of the welder be grounded to prevent electrical shock. You should run a wire from a screw on the outer case to an earth ground.

I am sorry I can't locate a wiring schematic for the welder. If you have questions reply on this thread and I will be glad to help.

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Jimmy K -
Sears Technician
September 06, 2011
A:

Thanks for your time Jimmy. On the spec. plate it says "Primary- Volts 230, Amps 46, Cyc 60, Ph 1, Kw 8.2" and Secondary Welding Range 20 - 300 Amps. The rest is about duty cycle times at different Amps. So, if I'm not mistaken, the 2 wires coming out of this, one should be the hot and the other the common ? Thanks again for your help, Ed

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Ed -
September 06, 2011
A:

Ed. actually the 2 wires coming out of the welder are line 1 and line 2. Products that only use 220-230 volts don't use a common. This makes a good ground wire very important. If one of the line wires shorts to the cabinet without a ground connection to the cabinet, you can get a full 120 volt charge if you touch the cabinet while you are grounded.

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Jimmy K -
Sears Technician
September 08, 2011
A:

OK !!! I was pretty much thinking that after I checked out some Home wiring. They said that 220 lines were basically two 110 lines. I also pulled the cover off my Breaker Box and looked real good at the two 220 lines already wired up. Thank You very much for your Insight. This got me goin' in the right direction. Have a good Weekend, and thanks again !

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Ed -
September 08, 2011
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