Big 20 Issues

[Emerson Biggins]

I have a Miller Big 20 that runs fine and used to weld fine but lately it dies when I touch stick to metal. It's always been a little cold blooded but welded fine once warmed up but not anymore. Doesn't matter how long I let it warm up, as soon as I touch stick to metal it dies. Any help would be appreciated. Thanks.

[cruizer]

Probably a lack of a field, which is what the second alternator does. Have it tested and in all likelihood replaced.

[Emerson Biggins]

I'll check that out. Thanks.