Miller Roughneck 1e troubles
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  1. #1

    Miller Roughneck 1e troubles

    Good day,
    I have been given a Miller Roughneck 1e s/n HK339116.
    It had been left outside in the elements for at least 2 years.
    I got the engine running well, and after cleaning the slip rings got good battery charge power and 110v power.
    When I run the throttle up to weld and flip the weld switch I get stinger power, but for the life of me I cannot get a steady arc. The rod just tends to stick to the work. I have tried all the amp settings and can’t get it to weld.
    The switches all ring out properly, and the big capacitors check ok.
    Does anyone have any ideas for me here?
    Best regards,
    Mike Compston

  2. #2
    Join Date
    Mar 2013
    Location
    Savannah, Ga.
    Posts
    336

    Re: Miller Roughneck 1e troubles

    Check and make sure both cylinders are firing, if not close your ignition contacts

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  3. #3
    Join Date
    Mar 2013
    Location
    Savannah, Ga.
    Posts
    336

    Re: Miller Roughneck 1e troubles

    Nevermind forgot it's only got one cylinder
    Quote Originally Posted by colindstark View Post
    Check and make sure both cylinders are firing, if not close your ignition contacts

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    Sent from my Pixel 2 using Tapatalk

  4. #4
    Join Date
    Apr 2006
    Location
    Soda springs,Id
    Posts
    4,293

    Re: Miller Roughneck 1e troubles

    You didn't say what size or type of rod you're trying. Are you sure the high RPM is where it should be? I'm guessing it should be 3600 RPM.
    Mike
    Ol' Stonebreaker
    "Experience is the name everyone gives to their mistakes"

    Miller 175 mig
    Miller thunderbolt ac/dc stick
    Victor O/A setup
    Makita chop saw

  5. #5

    Re: Miller Roughneck 1e troubles

    I'm using Hobart 7018 3/32 rod.
    M.

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  6. #6

    Re: Miller Roughneck 1e troubles

    And the weld rpm is 3600.
    M.

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  7. #7
    Join Date
    Apr 2006
    Location
    Soda springs,Id
    Posts
    4,293

    Re: Miller Roughneck 1e troubles

    I hope DuaneB55 will see this and help you out.
    Mike
    Ol' Stonebreaker
    "Experience is the name everyone gives to their mistakes"

    Miller 175 mig
    Miller thunderbolt ac/dc stick
    Victor O/A setup
    Makita chop saw

  8. #8
    Join Date
    May 2008
    Location
    Orange, TX
    Posts
    16,645

    Re: Miller Roughneck 1e troubles

    The Roughneck is an AC weld output machine. Any 7018 rod you use needs to be AC7018 as regular 7018 will not stay lit on an AC output machine. Try some 6010 or 6011 and some prefer 7014 for AC although I've not had the opportunity to use same myself to date.
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  9. #9

    Re: Miller Roughneck 1e troubles

    Thanks very much- I'll try that.
    M.

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  10. #10

    Re: Miller Roughneck 1e troubles

    That was the problem- even though the container for the 7018 says DCEP and AC I couldn't get it to work. When I switched to 6011 the machine worked great!
    Thanks again!
    M.

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