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  1. #1
    Join Date
    Aug 2004
    Posts
    104

    ESAB MEF 44N w/ LAI 400

    --------------------------------------------------------------------------------

    I have a problem with a wirefeeder from ESAB. It is working with LAI 400. I will describe the problem: The wire feeder decrease the speed during the welding. I saw that in its display. The display of power source decrease as well. I noted the speed (current) drops from 200 A to 130 A. But, arc welding does not extiguish and then the speed goes up. I saw if the input voltage drops when this happen. But, with naked eyes it did not happen. I checked also:
    the cables connection;
    internal Conduit of the torch;
    the rolls;
    The torch trigger.
    Everything looked fine.
    So, I would like to ask a help from you. If you can help I will appreciate that.

  2. #2
    Join Date
    Aug 2009
    Posts
    60
    Quote Originally Posted by Alex S.A View Post
    --------------------------------------------------------------------------------

    I have a problem with a wirefeeder from ESAB. It is working with LAI 400. I will describe the problem: The wire feeder decrease the speed during the welding. I saw that in its display. The display of power source decrease as well. I noted the speed (current) drops from 200 A to 130 A. But, arc welding does not extiguish and then the speed goes up. I saw if the input voltage drops when this happen. But, with naked eyes it did not happen. I checked also:
    the cables connection;
    internal Conduit of the torch;
    the rolls;
    The torch trigger.
    Everything looked fine.
    So, I would like to ask a help from you. If you can help I will appreciate that.
    Sounds like it could be some sort of electronic board problem. I doubt you could easily figure that out, is there a service center you can bring the machine to?

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