Regulator Chatter

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Thanks Oldgrandad!...

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What causes a regulator to chatter?

I have one that just started doing that occasionally. It happens to ‘that’ regulator only and on either my C25 or C10 tank AND on both my Miller 211 and 255.

Doesn’t seem to negatively affect the gas flow.

About to die?

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Bushy, you sound so cynical....

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I bought a new equipment trailer from a very reputable manufacturer. All the other welds I’ve looked at are pretty good. This is one of the ramp chain brackets; the other side is a nice weld.

The depressions seen are deep down into the work piece.

My guess is the settings...

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MAC702: Used welder. Can’t strike an arc to test at buyer’s location. Won’t know if it works till I get it home where I can plug it in (after paying for it).

330 is my ‘want’. My question is about buying a used welder in general.

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Is there a method of testing a used welder with a multimeter (tests a layman could do)?

I’m looking for a 330a/ab in particular. It’s difficult to find one I can strike an arc with before handing over a grand or so.

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Ryan, I happen to have some unobtanium and nonexistium in my shop. I’ll let you touch them for 5$. You can drop by once these mushrooms wear off.

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Thanks jjohn76. I didn’t think about voltage requirements.

That sounds reasonable. I’ll just write off the 211 for that duty and leave -G for the 255.

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I have the manual. It has the same chart that’s in the machine. No other info provided.

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I have a first generation 211 AutoSet. The specs list FCAW as an option but it doesn’t list FCAW-G.

The door chart ‘implies’ gasless only but not as fact.

I don’t see a reason why it wouldn’t do -G but wish to know before buying some -G wire for it.

...

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And the rest of my last post was: I’ll see if I can gets some pics on Google for comparison.

Again! This. APP. Sucks. Miller!

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I wouldn’t know bed rail if I slept on it....

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Reminds me of veterinarian blood tests. Every blood test is run through the same test panel. A small host of data is produced about your pet but they’ll only tell you what results you ask/pay for. Result A could be your dog doesn’t have heartworms and right next to it result B could be your dog...

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Interesting though on bed rail. It’s 1.5 by 1.5 angle. It feels rough and out near the edges it has rough ridges that run parallel with the edge.

I did some work on the main part of the trailer with the 255 and it’s not behaving well either. Only commonality is the C25 tank. I’m going...

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I just put a spool of 035 in my MM255. Will report.

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See above.

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As I said; I agree, sounds like bad ground. I always grind where my clamp goes and try to get it as close as possible to where I’m working.

I am grounding directly to the gate. I even put a vise-clamp on the ground clamp for more grip. Have used more than one grounding point as well.

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Working on a utility trailer gate; adding some stiffeners to keep wheels from bending in the expanded metal.

I’ve ground off the paint where my welds need to go.

Using ER70S-6 030 attaching 14ga wall 1x1 inch square tubing to 10 gauge angle.

Wire is acting like...