Rehab of a very tired Millermatic 200..

[Ps91-rick]

Ok.. no worries.. I’ve got plenty of sand paper and will use that.. I didn’t know it was conductive.. interesting.. Thx!!

[Ps91-rick]

Sounds like sage wisdom! Yes, I know about using a high wattage resistor for draining current out of various.. I think I’ve got a 25W one hanging around here somewhere.. But this particular machine I doubt has had power applied in well over a year as its missing the plug to even try to plug it in....

[Ps91-rick]

Thanks all.. I’ll probably start with a good cleaning first and maybe some compressed air to get rid of cob webs and whatnot. There is one part that I’m not sure about whether it’s ok or needs replacement. It’s the whitish part in picture 4 of the second group of photos.. I’m thinking it...

[Ps91-rick]

Here’s a few more.....

[Ps91-rick]

Here’s some pictures I took yesterday.....

[Ps91-rick]

Thanks guys.. I’ll really have to take pictures of the gun.. I’ll admit that I wasn’t completely following what the prior owner was telling me about the gun.. I know that the tip (?) that’s brass looking is currently bent and needs replacement.. There’s something else missing but I don’t...

[Ps91-rick]

Ok.. So I’m new here.. new to welding and well... anything associated with it.. I’ve welded once before with a cheapie stick welder about 10 years ago. But, a week ago I picked up a very worn and tired looking Millermatic 200 (s/n: JB513632) from I’m assuming perhaps 1981.. It’s one of the...