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Thread: Transformer repair

  1. #1
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    Transformer repair

    I’ve got a miller thunderbolt that needs the transformer lead spliced . Thought I’d ask someone who maybe had a better idea and the best way to splice it together again. Thanx !!!

  2. #2
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    Re: Transformer repair

    post some pictures of what you have to work with..

  3. #3
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    Re: Transformer repair

    Quote Originally Posted by hungrybare View Post
    I’ve got a miller thunderbolt that needs the transformer lead spliced . Thought I’d ask someone who maybe had a better idea and the best way to splice it together again. Thanx !!!
    Most modern welds today have aluminum. I would use splice in copper wire. Using Split Bolt Connector for Copper and aluminum and Anti-Oxidant Compound.

    I have found this works best for high amperage.

    Dave

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    Last edited by smithdoor; 01-17-2020 at 03:52 PM.

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    Re: Transformer repair

    Thanx Dave, Appreciate your reply. Should be a pretty easy fix
    Attached Images Attached Images  

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    Re: Transformer repair

    Your welcome

    Quote Originally Posted by smithdoor View Post
    Most modern welds today have aluminum. I would use splice in copper wire. Using Split Bolt Connector for Copper and aluminum and Anti-Oxidant Compound.

    I have found this works best for high amperage.

    Dave

    https://www.lowes.com/pd/Gardner-Ben...mpound/4514334

    https://www.lightingsupply.com/penn-...20group%20%231
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  7. #6
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    Re: Transformer repair

    Quote Originally Posted by hungrybare View Post
    Thanx Dave, Appreciate your reply. Should be a pretty easy fix
    take some fine emery and clean up about an inch on both sides of the crack, if its copper I would braze it back and be done, if its copper coated aluminum I would find a mechanical means to fasten them back together..

  8. #7
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    Re: Transformer repair

    Quote Originally Posted by Hobbytime View Post
    take some fine emery and clean up about an inch on both sides of the crack, if its copper I would braze it back and be done, if its copper coated aluminum I would find a mechanical means to fasten them back together..
    Thanx hobbytime , ya it’s aluminum taking it out to get at it better my all thumbs hand slipped and broke the fan blade. JB weld back together, If that doesn’t hold I guess a new one is only about 15 dollars.

  9. #8
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    Re: Transformer repair

    Quote Originally Posted by hungrybare View Post
    Thanx hobbytime , ya it’s aluminum taking it out to get at it better my all thumbs hand slipped and broke the fan blade. JB weld back together, If that doesn’t hold I guess a new one is only about 15 dollars.
    you can use a wire splice like this...to connect both sides of the break..fan blade should be cheaper than that...just look for one on amazon and make sure you get the proper rotation one..

    https://www.amazon.com/Morris-90615-...%2C166&sr=8-32
    Name:  41GZwygFa+L._AC_UY218_ML3_.jpg
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  10. #9
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    Re: Transformer repair

    una pregunta le ha pasado a alguno de ustedes que al encender una Thunderbolt 225 XL no tenga salida ninguno de los 2 transformadores secundario? ni el bajo ni el alto. Que podria ser? la probé con otro eje selector de otra maquina y tampoco genera la salida de 70 voltios.. Que podrá ser eso?

  11. #10
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    Re: Transformer repair

    Quote Originally Posted by humberto View Post
    una pregunta le ha pasado a alguno de ustedes que al encender una Thunderbolt 225 XL no tenga salida ninguno de los 2 transformadores secundario? ni el bajo ni el alto. Que podria ser? la probé con otro eje selector de otra maquina y tampoco genera la salida de 70 voltios.. Que podrá ser eso?
    I put that through an online translator:

    Has a question happened to any of you that when turning on a Thunderbolt 225 XL, none of the 2 secondary transformers have output? neither the low nor the high. What could it be? I tried it with another selector shaft from another machine and it does not generate the 70 volt output either. What could that be?
    Dave J.

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  12. #11
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    Re: Transformer repair

    Quote Originally Posted by MinnesotaDave View Post
    I put that through an online translator:
    I have no idea, but at least now I can honestly say I have no idea. Lol.

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