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Welder repair--

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  • Welder repair--

    I came upon another Apex welder in better nick (appearance) than the previous unit. It came with a new BOC welding hood, 15 metre HD leads and a pack of rods.
    It works real smooth; the drawer back was, it had a breakaway of the dielectric(?) material above the slide choke.
    Maybe caused by abuse from being dropped, being hauled by the choke or overtightening. Any way I have seen similar damage on these before but never a complete breakaway.
    This is what I did for a repair using Formica electrical board and West System epoxy; all that remains to be done is drill through and attach a 40 x 20 ali angle support plate for added peace of mind and in case I ever lend it to a 'carefull' friend .

    http://img.photobucket.com/albums/v3...C/IMG_1558.jpg
    http://img.photobucket.com/albums/v3...C/IMG_1551.jpg
    http://img.photobucket.com/albums/v3...C/IMG_1568.jpg
    http://img.photobucket.com/albums/v3...C/IMG_1570.jpg
    http://img.photobucket.com/albums/v3...C/IMG_1563.jpg
    Last edited by speedy; 12-20-2008, 06:35 PM.
    Ken.

  • #2
    Slick repair speedy but have you tested its operation?

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    • #3
      All critique welcome

      Thanks Steve. I am happy with the look of the repair.
      You mean, it was working well before but will it functuion the same after the repair?
      I am hoping so
      Before commencing the repair I spoke with Jim, my electrical engineer mate. He tells me that the material will have no effect on the function.
      Should I trust him?
      Last edited by speedy; 12-20-2008, 07:17 PM.
      Ken.

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      • #4
        As long as the material is non-metallic it will be fine. You could of even used wood.

        Thats the first time I have ever seen a welder with a manual shunt like that.

        Comment


        • #5
          It's a saturable reactor, lets you change current without switches or jumpers. Moving the metal block in or out changes the saturation current.

          Joe

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          • #6
            Saw wooden staves in a power plant generator..
            They were wedges put in the coils.

            OK..

            I have saw them rascals adjust themselves as you are welding.. the ones I have had open had screws and threaded rods to adjust them..

            Sticking a metal object in between two coils? well ever stick a fork into a toaster oven to get a burning piece of toast out. It imparts quite a charge to the fork.. and you..
            Excuse me, I farted.

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            • #7
              Originally posted by macona
              As long as the material is non-metallic it will be fine. You could of even used wood.
              Thats the first time I have ever seen a welder with a manual shunt like that.
              I have saw them rascals adjust themselves as you are welding.. the ones I have had open had screws and threaded rods to adjust them..
              This isn't mine but is identical. Shows the choke and locking set up.
              The sliding choke is a lump of aluminium with laminations contained within phenolic insulator bolted to the end. I will post an image later when I have finished.
              They are a nice welder with the low amp range 30-55 and the high amp range 55-150 over the same distance on the choke slide.
              http://img.photobucket.com/albums/v3...00416_full.jpg
              Ken.

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              • #8
                Meanwhile, only one month later....

                Well, I finally got round to finishing the welder.
                I fabricated a 'front bumper iron/ lifting point' (courtesy of a supermarket shopping trolley and an exercyle) to protect the choke and the cable connectors, fitted a heavy duty handle ( galv water pipe). I also reversed the axle to bring the fulcrum forward a notch as it was a b*tch to tilt back - the point of balance was rubbish. All electrical connections were resoldered, cleaned or replaced .
                She is all good.


                http://smg.photobucket.com/albums/v3...t=IMG_1644.jpg
                http://smg.photobucket.com/albums/v3...t=IMG_1645.jpg
                http://smg.photobucket.com/albums/v3...t=IMG_1646.jpg

                This is my refurbished 4 wheel steer 180SC. A solid unit as well.
                http://smg.photobucket.com/albums/v3...t=IMG_1657.jpg
                Last edited by speedy; 01-21-2009, 05:40 PM.
                Ken.

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                • #9
                  Re: Welder repair

                  Speedy...Fix looks real good! I agree about the handle. I had a "C" clamp on the back side of my Lincoln buzz box for that same reason. Some mornings I didn't have enough ballast to tip it back.
                  Jim (KB4IVH)

                  Only fools abuse their tools.

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