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Thread: Century Monkey be Wards AC DC repair

  1. #1
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    Century Monkey be Wards AC DC repair

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    I need to make it work. It is completely dead.
    Has power in past the switch, but nothing out. No humming, no fan.

  2. #2
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    Re: Century Monkey be Wards AC DC repair

    What did it do when it died?
    Died while welding or worked one day, dead the next?
    Dave J.

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    Re: Century Monkey be Wards AC DC repair

    I bought it as working, it's not.

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    Re: Century Monkey be Wards AC DC repair

    Did you check to make sure you have 240? What instrument are you using to determine voltage? Sounds like maybe you only have 120. Check leg to leg at the outlet and again inside the machine. If you have 120 between hot and ground but zero between hot and hot you are hooked up wrong.
    Miller Challenger 172
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  5. #5
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    Re: Century Monkey be Wards AC DC repair

    Quote Originally Posted by bigb View Post
    Did you check to make sure you have 240? What instrument are you using to determine voltage? Sounds like maybe you only have 120. Check leg to leg at the outlet and again inside the machine. If you have 120 between hot and ground but zero between hot and hot you are hooked up wrong.
    That's where I would start too.
    Dave J.

    Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~

    Syncro 350
    Invertec v250-s
    Thermal Arc 161 and 300
    MM210
    Dialarc
    Tried being normal once, didn't take....I think it was a Tuesday.

  6. #6
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    Re: Century Monkey be Wards AC DC repair

    120 on each hot wire.
    I'll double check the ground.
    Don't think that's it though.
    Checked with a multi meter.

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    Re: Century Monkey be Wards AC DC repair

    Finally some good news.
    Turns out my outdated circuit breaker box doesn't connect to the two busbars at every two stations. I had to take it loose and wiggle the busbars to figure out that of the six stations, only the inner for would work for 220. Welder makes that happy humming noise now.

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    Re: Century Monkey be Wards AC DC repair

    Quote Originally Posted by Nessmuk View Post
    120 on each hot wire.
    I'll double check the ground.
    Don't think that's it though.
    Checked with a multi meter.
    What about from hot to hot?
    Miller Challenger 172
    Miller Thunderbolt AC/DC 225/150
    Miller Maxstar 150 STL
    Victor 100C
    Victor Journeyman
    Oxweld OA
    Harris O/A
    Smith O/A little torch

    No, that's not my car.

  9. #9
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    Re: Century Monkey be Wards AC DC repair

    Quote Originally Posted by Nessmuk View Post
    Finally some good news.
    Turns out my outdated circuit breaker box doesn't connect to the two busbars at every two stations. I had to take it loose and wiggle the busbars to figure out that of the six stations, only the inner for would work for 220. Welder makes that happy humming noise now.
    Sounds like you have a GE or a Federal Pacific. Which is what I was getting at with my questions
    Miller Challenger 172
    Miller Thunderbolt AC/DC 225/150
    Miller Maxstar 150 STL
    Victor 100C
    Victor Journeyman
    Oxweld OA
    Harris O/A
    Smith O/A little torch

    No, that's not my car.

  10. #10
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    Re: Century Monkey be Wards AC DC repair

    I appreciate all your help. It's just good to get it going.

  11. #11
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    Re: Century Monkey be Wards AC DC repair

    Quote Originally Posted by Nessmuk View Post
    I need to make it work. It is completely dead.
    Has power in past the switch, but nothing out. No humming, no fan.
    I know this is an old thread and the problem was actually in the supply line, but... a welder like this has simple wiring inside; plain wiring between the transformer and the connectors on the front panel, a rectifier in the DC circuit, but no solid state circuitry. Just a moveable core for current adjustment. Should have been easy to visually inspect, or to check resistance of the wiring in the main transformer to find any problems.
    FWIW, I probably still have a Wards catalog, or a page from one, listing this unit. Maybe from the 1980's?

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