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  1. #11
    Join Date
    Aug 2008
    Location
    Orange, TX
    Posts
    1,162

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    Quote Originally Posted by amethyst161 View Post
    Might have been a dumb idea but I jumped 12v + to the slip ring and was able to get power from 115v receptacle.
    Not dumb at all. That's how one would flash the field to wake up a dead unit that had lost its residual magnetism. However, your machine is "self flashing" yet responded to your 12V application because the failed diode was apparently causing an open in the flashing circuit.


    Quote Originally Posted by amethyst161 View Post
    I was an idiot and soldered a diode in backwards. Replaced one more diode as well. Now have power to slip rings and receptacle. Only 45VAC at power throttle. I am getting power to my weld jacks as well. What else can be wrong to not get full 115VAC? I found bad diode by using multimeter and trace 12vdc power from alternator to PC board. Then found bad diode. Replaced diode and followed 12v + through capacitors and ended at slip rings.
    Looking at the manual schematic, which specific diodes did you find failed and replaced?

    There are a number of factors that can be resulting in your low voltage at this point including engine speed and other possible field voltage circuit component failures or adjustment. Voltage at the slip rings (with Fine Amperage Control set to 100) should be approximately 115-150VDC.

    I responded to your PM.
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  2. #12
    Join Date
    Dec 2013
    Posts
    25

    Default

    Quote Originally Posted by duaneb55 View Post
    Not dumb at all. That's how one would flash the field to wake up a dead unit that had lost its residual magnetism. However, your machine is "self flashing" yet responded to your 12V application because the failed diode was apparently causing an open in the flashing circuit.



    Looking at the manual schematic, which specific diodes did you find failed and replaced?

    There are a number of factors that can be resulting in your low voltage at this point including engine speed and other possible field voltage circuit component failures or adjustment. Voltage at the slip rings (with Fine Amperage Control set to 100) should be approximately 115-150VDC.

    I responded to your PM.
    The numbers are gone as to which diodes. I have not checked the AC voltage on slip rings but will tonight or tomorrow and update further. The fine amp control is busted and was bypassed by connection both terminals together which I would think will have it at 100%...I'm not sure who did this but do expect that it worked after the PO wired this.

  3. #13
    Join Date
    Dec 2013
    Posts
    25

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    Quote Originally Posted by amethyst161 View Post
    The numbers are gone as to which diodes. I have not checked the AC voltage on slip rings but will tonight or tomorrow and update further. The fine amp control is busted and was bypassed by connection both terminals together which I would think will have it at 100%...I'm not sure who did this but do expect that it worked after the PO wired this.
    D2 & D5 on PC board

  4. #14
    Join Date
    Dec 2013
    Posts
    25

    Default

    Quote Originally Posted by duaneb55 View Post
    Not dumb at all. That's how one would flash the field to wake up a dead unit that had lost its residual magnetism. However, your machine is "self flashing" yet responded to your 12V application because the failed diode was apparently causing an open in the flashing circuit.



    Looking at the manual schematic, which specific diodes did you find failed and replaced?

    There are a number of factors that can be resulting in your low voltage at this point including engine speed and other possible field voltage circuit component failures or adjustment. Voltage at the slip rings (with Fine Amperage Control set to 100) should be approximately 115-150VDC.

    I responded to your PM.



    42.5VAC on outlets and 0v on weld jacks? Sent video to your email

  5. #15
    Join Date
    Dec 2013
    Posts
    25

    Default

    Any info or thoughts would be nice.

  6. #16
    Join Date
    Dec 2013
    Posts
    25

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    Bump

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