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  1. #1
    Join Date
    Sep 2009
    Location
    nc
    Posts
    13

    Default MM 211 having problems

    Hi all, I am having problems with welding anything steel, My gun cap is arcing to the metal I am welding. I have never had this happen before. I am running 030 solid wire,75/25 gas ,220 power,I have tried auto set up and manual set up.Not alot of hours on this machine (aprox30) My MM172 was much more forgiving than the new MM211. I am not sure whats up.Any body have this problem. I have checked polarity and that is where its supossed to be.
    Dynasty 200 DX
    Millermatic 211
    Spoolmate 100
    Hypertherm 30 plasma cutter
    Chalanger 172 mig

  2. #2
    Join Date
    Sep 2005
    Location
    Salem ,Ohio
    Posts
    3,909

    Cool

    Check for a piece of slag inside the nozzle or on the contact tube....Bob
    Bob Wright, Grandson of Tee Nee Boat Trailer Founder
    Metal Master Fab Salem, Oh 44460
    Birthplace of the Silver & Deming Drill
    1999 MM185 w/185 Spoolgun,1986 Thunderbolt AC/DC
    Spool Gun conversion. How To Do It. Below.
    http://www.millerwelds.com/resources...php?albumid=48

  3. #3
    Join Date
    Sep 2005
    Location
    Appleton, WI
    Posts
    383

    Default

    Kenny,

    If you don't find anything shorting across from the tip to the nozzle then the insulator in the nozzle has to be shorted. The most common reason for that happening is to much noz-dip. If you are using noz-dip you only want to dip the very end of the nozzle about a 1/4" is plenty. Using more than a little can saturate the insulator and can cause the nozzle to short out. If you are not using noz-dip then it sounds like the insulator in the nozzle has just failed.

    In either case replacing the nozzle should take care of the arcing issue.
    Kevin Schuh
    Service Technician
    Miller Electric Mfg. Co.

  4. #4
    Join Date
    Sep 2009
    Location
    nc
    Posts
    13

    Cool thanks

    Yep, It was a tiny piece of junk way back in the tip of the gun. This was the first time I had that happen. Thanks everybody for the help. I stay so busy that the little things go overlooked. Thanks again.
    Dynasty 200 DX
    Millermatic 211
    Spoolmate 100
    Hypertherm 30 plasma cutter
    Chalanger 172 mig

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