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linde Heliarc-300 help

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  • weldercollector
    replied
    I thought about the selector switch, if that was the case I'd still have voltage to the switch, the SCR's aren't turning on.

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  • shovelon
    replied
    I bet it is the current selector switch. Over time he little springs inside sack out and arcing fouls out the copper contacts. A full rebuild, refurbish of the copper contacts, and replacement of the springs was the solution for me.

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  • weldercollector
    replied
    updated serial number C84A-46493

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  • weldercollector
    replied
    Mogel # heli300
    ser# c84a-46493

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  • weldercollector
    replied
    Click image for larger version

Name:	image_33462.jpg
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ID:	566032

    Model # heli300
    ser# c84a-46493
    Last edited by weldercollector; 02-15-2016, 10:45 PM.

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  • jstrunck
    replied
    Hope to see a pic soon.

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  • H80N
    replied
    PICS of the front panel & faceplate...might help us figure out what it is and who actually made it

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  • weldercollector
    started a topic linde Heliarc-300 help

    linde Heliarc-300 help

    I bought this welder last summer at an auction for $500 assuming it worked, it has HF output only. I've fixed many welders with various issues but for this one I have no schematic, I talked to Esab and they have no info on this welder. I have power up to the SCR's, with nothing from the SCR driver board. I've been thru every component on all the boards, replaced the SCR's and any questionable board parts and I'm confident the boards, CSR's, rectifies,switches are good. I also can tell the control wiring has been rewired by the automotive style crimp on connectors. if anyone has access to a wiring diagram or schematic i would gladly pay for a copy
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