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  1. #1
    Join Date
    Jul 2009
    Posts
    21

    Question Miller Vintage Performance Drop Off

    Hey guys,

    I have a question. First understand what I do not know about welders and welding would fill volumes and volumes.

    I have a Miller VINTAGE welder running 220 from a house line. There is maybe a 50' extension cord from the meter to the machine.

    I start to weld and I can get some good bacon sounds going but maybe 3-5 minutes into welding it seems like the voltage drops or something goes awry. It just seems like it's strength drops off.

    Is there a name for this and is there a part inside I can change to try to fix it?

    TIA!

    Artisan

  2. #2
    Join Date
    Jul 2008
    Location
    Delhi, Ontario:
    Posts
    1,970

    Default

    Quote Originally Posted by .Artisan. View Post
    Hey guys,

    I have a question. First understand what I do not know about welders and welding would fill volumes and volumes.

    I have a Miller VINTAGE welder running 220 from a house line. There is maybe a 50' extension cord from the meter to the machine.

    I start to weld and I can get some good bacon sounds going but maybe 3-5 minutes into welding it seems like the voltage drops or something goes awry. It just seems like it's strength drops off.

    Is there a name for this and is there a part inside I can change to try to fix it?

    TIA!

    Artisan
    What gauge is the extention cord ?

    ........Norm

    Sunrise Outside My Shop In Delhi, Ontario

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  3. #3
    Join Date
    Oct 2004
    Location
    Edmonton, Alberta
    Posts
    7,737

    Default

    100% likely its the gun, try replacing the liner first.

  4. #4
    Join Date
    Oct 2007
    Location
    Cave Creek Az
    Posts
    988

    Default

    I recently had a loose screw on one of the terminals on one of my cords.

  5. #5
    Join Date
    Jul 2009
    Posts
    21

    Default

    Quote Originally Posted by nfinch86 View Post
    What gauge is the extention cord ?

    ........Norm
    Norm it is a Yellow heavy x-tension cord. The OD of the cord is 9/16" .

  6. #6
    Join Date
    Jul 2009
    Posts
    21

    Default

    Quote Originally Posted by cruizer View Post
    100% likely its the gun, try replacing the liner first.
    The liner was replaced in recent past, what would you suggest 2nd?

  7. #7
    Join Date
    Dec 2006
    Location
    Midwest
    Posts
    765

    Default

    Quote Originally Posted by .Artisan. View Post
    Norm it is a Yellow heavy x-tension cord. The OD of the cord is 9/16" .
    Does the cord or plug get warm?

  8. #8
    Join Date
    Oct 2007
    Location
    Cave Creek Az
    Posts
    988

    Default

    Quote Originally Posted by .Artisan. View Post
    The liner was replaced in recent past, what would you suggest 2nd?
    Liner can be ruined the day it is installed. Pull it and check it out.

  9. #9
    Join Date
    Oct 2004
    Location
    Edmonton, Alberta
    Posts
    7,737

    Default

    Liner, tip, or plugged wire guide to the drive rolls, especially if you using a absolutely useless lubricated wire felt cleaner.

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