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  1. #1
    Join Date
    Dec 2013
    Posts
    25

    Default roughneck 1e help

    S/N: HE805340
    No power. Throttle switch not working properly. #1 wire not connected. Checked all other connection and seem good. Cleaned slip ringsMore info upon reqest. Thanks in advance for information.

  2. #2
    Join Date
    Nov 2003
    Posts
    3,260

    Thumbs up

    Quote Originally Posted by amethyst161 View Post
    S/N: HE805340
    No power. Throttle switch not working properly. #1 wire not connected. Checked all other connection and seem good. Cleaned slip ringsMore info upon reqest. Thanks in advance for information.
    Here is a link to the manual..

    http://www.millerwelds.com/om/o419c_mil.pdf

    .

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  3. #3
    Join Date
    Dec 2013
    Posts
    25

    Default

    Quote Originally Posted by H80N View Post
    Here is a link to the manual..

    http://www.millerwelds.com/om/o419c_mil.pdf

    Have manual but not keen on electrical schematics. Could not find #1 wire on schematics also

  4. #4
    Join Date
    Nov 2003
    Posts
    3,260

    Default

    Quote Originally Posted by amethyst161 View Post
    Have manual but not keen on electrical schematics. Could not find #1 wire on schematics also
    On the schematic..
    #1 lead is on the upper left on the "Engine Flywheel Alternator"
    marked right in the crook where the lead turns down... a little hard to see..
    Last edited by H80N; 12-04-2013 at 09:11 PM.
    .

    *******************************************
    The more you know, The better you know, How little you know......

    “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

    Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

    My Blue Stuff:
    Dynasty 350DX Tigrunner
    Dynasty 200DX
    Millermatic 350P w/25ft Alumapro & 30A
    Millermatic 200

    TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam..

  5. #5
    Join Date
    Dec 2013
    Posts
    25

    Default

    Quote Originally Posted by H80N View Post
    #1 lead is on the upper left on the "Engine Flywheel Alternator"
    marked right in the crook where the lead turns down... a little hard to see..
    So two wires from engine alternator. One is by its self the other is connected to another wire and bolted to a small capacitor under carburetor. #1 should connect with the single wire?

  6. #6
    Join Date
    Dec 2013
    Posts
    25

    Default

    I see that I had incorrect schematic. Thank you for posting correct one. Only 1 issue is the schematic shows a Tecumseh engine where mine has a Kohler.

  7. #7
    Join Date
    Aug 2008
    Location
    Orange, TX
    Posts
    1,215

    Default

    ???

    The schematics in the correct manual link that H8N posted shows both the Tecumseh and Kohler engines.
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  8. #8
    Join Date
    Dec 2013
    Posts
    25

    Default

    If I read it right then #1 goes only to the alternator? The wire coming from flywheel alternator must go to points I think?

  9. #9
    Join Date
    Dec 2013
    Posts
    25

    Default

    Might have been a dumb idea but I jumped 12v + to the slip ring and was able to get power from 115v receptacle.

  10. #10
    Join Date
    Dec 2013
    Posts
    25

    Default

    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.

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