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Millermatic 130 wire feed trouble

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  • Millermatic 130 wire feed trouble

    Hi, I've an old millermatic 130 with a trouble on wire feeder. I've set a voltmeter on positive and negative nuts of TE1. Voltage are between 20v and 28v when feeder running good but when I release the trigger it drop to zero 3-4 second. To be able to weld again, I need to push triggee many time and after that the voltage on n├ęgative and positive nuts back to 20v - 28v.

    Did you have any idea of wich part must replace?

  • #2
    Sounds like the contactor points are buttered and not making good contact every time. Take the cover off the contactor and look at the bars. I bet you see they are blackened and pitted.