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[ryanjones2150]

Try using something like a pneumatic angle grinder instead of a 4 1/2 grinder. They’re much less aggressive. Takes longer, but it sounds like you could use a little slowin down anyway. Probably one reason why body shops just tack weld stuff then use seam sealer to glue it back in place. And that 3m...

[ryanjones2150]

What are you welding on?

[ryanjones2150]

For me it would be a matter of convenient storage space. I rarely have to move my welder.

[ryanjones2150]

No much more to add, all great advice. I’d only reiterate that if you’re burning through the old floor pan because it’s so thinned out, then it’s probably not good metal to be welding to in the first place and you may consider excising that cancer while you’re there and replacing it with good...

[ryanjones2150]

I agree, learning how to hold your mouth is pretty important, but it’s different for every machine. Maybe you have a left handed foot pedal.

When you mash the pedal and the screen doesn’t start, can you hear the HF at least trying to fire? Flip over to AC and see what happens.

[ryanjones2150]

Solid work. Nice job.

[ryanjones2150]

I have one on my tig cart and I wish I had put two. But I’d carry both argons there so when I run out in the middle of a job I can swap it very easily. I do have helium to mix in there when I need it, but I so infrequently use it that stays chained to the wall.

[ryanjones2150]

The arc just doesn’t start at all? Or the HF doesn’t fire? What mode are you in? Sometimes my syncrowave 200 will have trouble getting the HF to fire after it’s sat up for a while, but I attribute it to being in this hot and humid environment. I would expect the points to have developed some schmootz...

[ryanjones2150]

Something about that little onan, and I don’t know which one you have, is that they need routine maintenance like any other small engine and a commonly overlooked maintenance item is adjusting the valves. Depending on which onan you have, that valve will slap the face of the piston. What’ll end...

[ryanjones2150]

I try to run my small engine equipment, like the generators, once a month if I can. Usually I run them for about ten minutes. Sometimes I try to put at least a little bit of a load on them, but it probably doesn’t matter.

[ryanjones2150]

There a couple other brands out there and some of them are larger. Something else to consider is a table top that you set on saw horses or pipe jacks, like the weld tables dot com. You buy the kit, assemble it yourself. If you get a small enough one you can actually lift it and move it around. The...

[ryanjones2150]

Have you looked at the folding welding tables Miller or stronghands tools make? Northern Tool has a couple of affordable options for small tables and, of course, there’s the ever present horrible freight. Their table is basically the same as the stronghands tool, just a bit thinner material. Just...

[ryanjones2150]

Maybe give profax a call and see what they say. I’m with the doc here, need some pictures.

[ryanjones2150]

You can get a fume extractor, but that’s not going to help with the grinding dust. Problem is that dust is heavy. No matter what I’ve tried to do it just gets everywhere. I found a magnetic floor sweeper to make cleanup as easy as you can get, but that black heavy dust will be all in behind your...

[ryanjones2150]

I agree on the 251, it’s a robust piece of equipment for sure. I bet I could pull mine out from under the work bench and it’ll work just fine. I have the foot pedal for it too. Probably doesn’t help with whatever your Hobart needs.

[ryanjones2150]

You should be able to wire it up the same. Even though it’s a new style relay, it still has the same connections. Power in is still power in, wiper is still wiper, etc. I went looking to see if I had pictures off my repair but no luck finding any. For my repair, I called Miller tech support, talked...

[ryanjones2150]

I have a local industrial electronics supplier, so search your local area, they can most likely help you get the parts you need. If you’re unsure what you need, then carrying those parts in there will help. Additionally, this problem is also solved by outfits that repair welding machines, so that...

[ryanjones2150]

I had a similar problem a few years ago for my old as dirt airco 3a. What I did was take the relay specifications to my industrial electrical supplier and matched it up with what they carry now. Had to shoehorn the new relays in there and modify the cover, but she’s been choochin along just fine ...

[ryanjones2150]

I’m sure it depends on where you buy it too. At my LWS it’s cheaper to buy a 33lbs roll than a 10lbs roll, for some odd reason. Probably because they buy the bigger rolls by the ship load.

I’d shop around, but it wouldn’t surprise me if the cost went through the roof, like everything...

[ryanjones2150]

That’s what I was thinking. That Hf-251 is all the HF start and continuous he’ll need, provided that Hobart does AC. Seems like the engine drives are either DC only but have remote amperage control, or AC/DC without remote amperage control. At least the newer ones.