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Millermatic 252 cutting out

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  • Millermatic 252 cutting out

    Hello I have a millermatic 252 that will cut out once in a while during welding. Its been doing it for quite a while now and I'm over it. Ive got a good ground, clean material, clean tip, plenty of tension on my rollers, which are clean as well. My guess is possibly a smashed/bent liner? I pulled it out a little over a year ago to make sure it wasn't damaged, cleaned it and everything, and I haven't used anything but solid wire since so you wouldnt think it would be that dirty already. Any input or ideas would be great, figured I would ask around before I went ahead and purchased a new liner. Thanks!

  • #2
    What do you mean that it cuts out? Like it shuts off completely, stops feeding wire, stops burning wire, etc....please be a little more specific with the problem.

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    • #3
      yes my bad, i'm guessing that it stops feeding wire for about a second, and then it will continue to feed. Keeps burning so it shouldnt be a bad ground. Some days are worse then others, and some days it won't do it at all.

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      • #4
        Check the trigger wires inside the gun. They are about 1/8" too short and sometimes slip off the terminal...Bob
        Bob Wright

        Spool Gun conversion. How To Do It. Below.
        http://www.millerwelds.com/resources...php?albumid=48

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        • #5
          ok i will definitely check that out thanks

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          • #6
            My 252 is my "go to" machine, but it requires a little TLC -- recheck the trigger connections, clean/inspect the liner (be surprised what comes out when you use compressed air), lube the drive mechanism periodically. Not sure if you're running the 8" spools, but checking /rechecking tension is something I do frequently. Also, doing the "wooden block test" every so often is a great way to rule out problems in the wire feed pathway.
            ESAB TIG 252 with Miller CoolMate
            Spectrum 875
            Diversion 180
            Oxy-A (Harris, ESAB, Ox Weld)
            Miller 252
            MM 211
            CST 280
            Trailblazer - Kubota

            http://www.blackdiamondblooms.com/

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            • #7
              Sounds more like someone has gotten into the internal programming, best do a reset.

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              • #8
                Great to see you Cruizer...Bob
                Bob Wright

                Spool Gun conversion. How To Do It. Below.
                http://www.millerwelds.com/resources...php?albumid=48

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