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Thread: SA200 won't run certain grinders

  1. #1
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    SA200 won't run certain grinders

    I have a 1958 SA200, runs and welds great! I can run all my dewalt 4 1/2" paddle switch grinders (see first image). The problem is, I can not run my new dewalt trigger grip grinder (see second image) or my dewalt 7" (see third image). Any ideas as to why? I am putting the pin in on my R57 idler.

    Thanks in advance!

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    '58 SA 200 Code# 3555

  2. #2
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    Re: SA200 won't run certain grinders

    The SA200 may be producing DC rather than AC voltage,, or some weird frequency.

    Many older tools were labeled as AC,,, or AC/DC,, the one that works is 99% probable labeled as AC/DC,,,

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  4. #3
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    Re: SA200 won't run certain grinders

    Yes, the SA200s were DC only. I only used tools that were labeled AC/DC on the nameplates. Some newer stuff is AC only, especially variable speed tools or grinders with the soft start features. I hope the OP didn't cause any damage to his grinders.
    I once had a guy plug my air conditioning vacuum pump into an SA and let the magic smoke out of the motor. After that the SA's got placards stuck next to the outlet reading "DC power only. If you don't know what that means, don't plug ANYTHING into this outlet". Now it's all Miller trailblazers for me.

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    Re: SA200 won't run certain grinders

    a couple/few yrs ago, i looked at the list of all the dewalt grinders, and they only had 1 or two, that were dc out of all there many grinders they offer. one being the 28402 in the top pic. i use the 28402's, and the 28114. i dont remeber if there was a big/15 amp grinder or not in dc, cuz all new big ones are junk (to me anyway). also, the sa 200 dont really put enough amps out to run the big grinder right anyway. other option is if room on truck, just run a costco generator for ur grinders/tools - cheap, light gas, and sometimes its amazing how much you can prep w/ it, before having having to start up the 4 cyl machine. i alsao have a 58 sa 200, code 3554, and its one of my favorites, however it not running right now

  6. #5
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    Re: SA200 won't run certain grinders

    I noticed Rigid “pony “ pipe threaders say
    “A-C only” on them. I figured it might be because
    people tried to run them on Lincoln welders with 110v.
    d.c. and burned them up.
    Miller a/c-d/c Thunderbolt XL
    Millermatic 180
    Purox O/A
    Smith Littletorch O/A
    Hobart Champion Elite

  7. #6
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    Re: SA200 won't run certain grinders

    Are the ones that don't run brushless motors ?

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    Re: SA200 won't run certain grinders

    The old drills and grinders had brush type universal
    motors and would run on ac or dc. A lot of the newer
    tools are different.
    Miller a/c-d/c Thunderbolt XL
    Millermatic 180
    Purox O/A
    Smith Littletorch O/A
    Hobart Champion Elite

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  10. #8
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    Re: SA200 won't run certain grinders

    The older SA200's only had 9 amps DC if I recall so likely wouldn't run a 7" grinder very well or at all. The newer SA's were 15 amp DC I believe. Not sure of the amps on the 4 1/2" but would think under 9 amps.

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    Re: SA200 won't run certain grinders

    To funny, my sa200 is code 3555!

  12. #10
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    Re: SA200 won't run certain grinders

    Yes, all SA200s are DC.

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    Re: SA200 won't run certain grinders

    To funny, my SA200 is code 3555.

  14. #12
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    Re: SA200 won't run certain grinders

    Mine aren't burned up. I can use them plugged in to any other power source, just not my SA200.

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    Re: SA200 won't run certain grinders

    Quote Originally Posted by Scotth066 View Post
    To funny, my SA200 is code 3555.
    yea, well, they made a bunch of 3554's, then a bunch of 3555's and so on . so its not quite as good as if we both got old matching single action colt revolvers w/ consecutive serial #'s. if so, we'd get together and make some $
    Last edited by 123weld; 2 Weeks Ago at 08:43 PM.

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    Re: SA200 won't run certain grinders

    Quote Originally Posted by 123weld View Post
    yea, well, they made a bunch of 3554's, then a bunch of 3555's and so on . so its not quite as good as if we both got old matching single action colt revolvers w/ consecutive serial #'s. if so, we'd get together and make some $
    I thought all guns were only sold as consecutive sets,,



    Does that mean I should break up my consecutive sets?? Especially, the Model 617 Mountain Guns,, ??




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  18. #15
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    Re: SA200 won't run certain grinders

    What would be really cool was if you converted a pistol into a functioning Mig gun. I'd bet they'd sell like hotcakes. Imagine coming across the border and you tell them you bought a new (Mig) gun.

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    Re: SA200 won't run certain grinders

    Quote Originally Posted by SweetMK View Post

    Does that mean I should break up my consecutive sets?? Especially, the Model 617 Mountain Guns,, ??



    no, no, we wouldnt want you to break that up. i wish more people did like u. we got two hands, and two feet. when we buy shoes, we dont just buy one shoe, we buy a pair/two. so why not handguns, as we have two hands also, i dont know whats wrong w/ them. in the tyranical province i'm in, we cant buy two new handguns in a 30 day period. i like ur guns, i've always liked the action on ruger revolvers, its good for the $, but i cant say i'm a big fan of there grips. i probabaly have most fun w/ my single actions/blackhawks , even at night laying on the couch (i love that click... click, sound). the only other mechanical sound i love more than that, is them machines that count $100 bills in the bank. anyway, thank u for posting that, glad to see some signs of use on the mountain ones. i got a friend w/ belgium brownings never fired, and our whole lives are going buy, and he's never used them. i cant justify buying collecter/rare stuff. i buy guns like i buy/reasons as tools, and use them like a tool. i did see your .17 in a blackhawk hunter in 12v71's thread. i liked it, and didnt know about those. i had been thinkin about one in a long barreld revolver for a while. now heres a pair of old single action consecutive colts https://www.gunbroker.com/item/903381681
    Last edited by 123weld; 1 Week Ago at 08:07 PM.

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  21. #17
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    Re: SA200 won't run certain grinders

    You need to put a ac generator on belt drive .
    It is pain in the butt the DC out put.

    Dave


    Quote Originally Posted by Scotth066 View Post
    I have a 1958 SA200, runs and welds great! I can run all my dewalt 4 1/2" paddle switch grinders (see first image). The problem is, I can not run my new dewalt trigger grip grinder (see second image) or my dewalt 7" (see third image). Any ideas as to why? I am putting the pin in on my R57 idler.

    Thanks in advance!

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