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Subject: Troubleshooting a Miller Big 40 Welder

Date: 10/25/03 at 7:30 AM
Posted by: R Forbes
E-mail: falun_ainjull[AT55]hotmail.com (replace [AT55] with @ to reply)
Message Posted:

I have a Miller Big 40 welding machine and I can't get it to weld. At idle, I get 150 volts from my AC plug-in (the wall socket where you plug in lights, grinders, etc.) and at max engine speed it goes to 650 volts. I get no voltage on the welding terminals at all. I replaced the 6 diodes in the front of the stator yesterday, but still nothing.
Please help, if possible.

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