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Millermatic 185

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  • Millermatic 185

    Have line feed but no arc. What could be wrong? Have checked ground cables and replaced the contactor and relay.
    Last edited by Rubenomunoz; 08-29-2016, 02:11 PM.

  • #2
    Do you pull the machine around by the gun cable? If so, check for continuity from the machine end to the contact tip. No continuity means you pulled the cable apart inside one end or the other.

    Otherwise:
    Have you checked the condition of the contacts on the voltage selector switch (S2)?

    Do you have AC voltage into and out of the contactor (W) with the gun trigger pulled?

    AC voltage into the weld output rectifier (SR1) with trigger pulled?

    DC voltage at weld output lugs with trigger pulled?
    MM200 w/spot controller and Spoolmatic 1
    Syncrowave 180 SD
    Bobcat 225G Plus LPG/NG w/14-pin*
    *Homemade Suitcase Wire Feeder
    *HF-251D-1
    *WC-1S & Spoolmatic 1
    PakMaster 100XL
    Marquette "Star Jet" 21-110
    http://www.millerwelds.com/images/sm...rolleyes.png?2

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    • #3
      Check the 2 trigger wires inside the gun also. They can come loose...Bob
      Bob Wright

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