I am welding with a gas powered BobCat 250 and a Miller XTreme 12 v Suitcase, innershield 0.045. The gun has started to get red hot, so hot that I can barely stand to weld. The welds are 12 inches long and by the time I am 1/3 of the way through I am miserable. The wire also breaks inside the machine, sometimes forcing two pieces of wire into the orifice of the gun lead. The liner was replaced three months ago. My company isn't doing anything about the problem. I have told them about the problem repeatedly and they don't even open the gun to see if the problem is visible. We are on a tight timeline and all they care about is getting to the end of the job. If I open the gun myself what are the chances I can visually see any problems? I think something is shorting out in the gun. Can anyone give me some suggestions? Thanks.
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