I need some help from a person that knows electrical problems. I have
used welder that I am refurbishing. I have made a repair to th interface board that had a blown capacitor. When I turned that welde on it seemed that everything was okay with the fix so I am testing th weld capabilities. As I don't have it set up for the tig yet, I am jus testing the "arc" functions. When I selected AC and used a 7018 3/32 rod I was able to run a bead. When I selected DC (straight polarity) o DC (reverse polarity) and turned the welder on it flipped the circui breaker. The question(s) that I have:
1) Is this a dead short in the rectifier bridge? diode? If so how can check the fault?
2) Can can check to see if the high frequency works using the "stick function?
Thanks for any help.
A
-- hd_74al