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  1. #1
    Join Date
    Jul 2008
    Location
    Wooster, Ohio
    Posts
    18

    Default Lay a Syncrowave on its side to change coolant.

    I've owned my SW 250 DX for about .....9 yrs or so. Starting to have problems in AC, so I thought I'd do some maintenance. I remember the sales guy telling me to change the coolant regularly. I haven't. What's the easy way to do it? Am I missing the drain plug?
    Syncrowave 250 DX
    MillerMatic 212
    Hypertherm plaz
    Coors light on tap

  2. #2
    Join Date
    Nov 2009
    Location
    western mass
    Posts
    189

    Default

    Just undo the water line off the tig torch and run the coolant out of the tank

  3. #3
    Join Date
    Nov 2003
    Posts
    2,792

    Default Spark Gaps..

    Quote Originally Posted by Barnage View Post
    I've owned my SW 250 DX for about .....9 yrs or so. Starting to have problems in AC, so I thought I'd do some maintenance. I remember the sales guy telling me to change the coolant regularly. I haven't. What's the easy way to do it? Am I missing the drain plug?
    While it sounds like you are certainly overdue for a coolant change..

    my first guess on your AC problems would probably have me looking at the HF spark gaps...

    When was the last time they were cleaned and adjusted??

    I would clean and adjust them... they can get pretty crudded up and pitted in a shop environment... and performance degrades

    the info is in the manual.. free download..

    just fill in your serial # to get the right version..

    http://www.millerwelds.com/service/ownersmanuals.php
    .

    *******************************************
    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 Mills, Lathes & a Rat Tail File..

  4. #4
    Join Date
    Aug 2004
    Location
    Milan Michigan
    Posts
    1,634

    Default

    Just a quick reminder, Spend a couple extra bucks and buy the Miller low conductivity coolant.

  5. #5
    Join Date
    Jul 2008
    Location
    Wooster, Ohio
    Posts
    18

    Default

    Quote Originally Posted by Portable Welder View Post
    Just a quick reminder, Spend a couple extra bucks and buy the Miller low conductivity coolant.
    No skimping here.
    Syncrowave 250 DX
    MillerMatic 212
    Hypertherm plaz
    Coors light on tap

  6. #6
    Join Date
    Jul 2008
    Location
    Wooster, Ohio
    Posts
    18

    Default

    Quote Originally Posted by H80N View Post
    While it sounds like you are certainly overdue for a coolant change..

    my first guess on your AC problems would probably have me looking at the HF spark gaps...

    When was the last time they were cleaned and adjusted??

    I would clean and adjust them... they can get pretty crudded up and pitted in a shop environment... and performance degrades

    the info is in the manual.. free download..

    just fill in your serial # to get the right version..

    http://www.millerwelds.com/service/ownersmanuals.php
    Adjusted the gaps when the arc randomly dropped out. Right side was at .012, left side was at .008. I was hoping that was the only problem. Ran a couple filler rods without a glitch after adjustment.
    Also noticed, when I had the covers off, that the coolant was brownish.
    So, what I understand from the reply, just pump the coolant out?
    Thanks for the help.
    Syncrowave 250 DX
    MillerMatic 212
    Hypertherm plaz
    Coors light on tap

  7. #7
    Join Date
    Nov 2003
    Posts
    2,792

    Default

    Quote Originally Posted by Barnage View Post
    Adjusted the gaps when the arc randomly dropped out. Right side was at .012, left side was at .008. I was hoping that was the only problem. Ran a couple filler rods without a glitch after adjustment.
    Also noticed, when I had the covers off, that the coolant was brownish.
    So, what I understand from the reply, just pump the coolant out?
    Thanks for the help.
    When adjusting gaps I usually also blow the area out with compressed air as well as removing covers and blowing out the area where the transformer and other circuitry for the HF generator reside....

    There is high voltage involved and collected dust can allow HV bleed and carbon tracking... that reduces voltage, and can also degrade HF performance and affect your arc stability...
    sometimes causing intermittant problems that are hard to trace..

    often the easiest way to figure that out is to remove covers and turn the machine on in a dark room... trails of blue corona sparks can then usually be seen if you do indeed have leaking..

    just a thought...
    Last edited by H80N; 07-02-2013 at 05:19 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 Mills, Lathes & a Rat Tail File..

  8. #8
    Join Date
    Jul 2008
    Location
    Wooster, Ohio
    Posts
    18

    Default

    Quote Originally Posted by H80N View Post
    When adjusting gaps I usually also blow the area out with compressed air as well as removing covers and blowing out the area where the transformer and other circuitry for the HF generator reside....

    There is high voltage involved and collected dust can allow HV bleed and carbon tracking... that reduces voltage, and can also degrade HF performance and affect your arc stability...
    sometimes causing intermittant problems that are hard to trace..

    often the easiest way to figure that out is to remove covers and turn the machine on in a dark room... trails of blue corona sparks can then usually be seen if you do indeed have leaking..

    just a thought...
    Yep. Did a good blow with the dryest shop air I could muster. Still miffed about no drain plug when Miller says to change coolant REGULARLY.
    Also, noticed some "stalactites" of plastic? hanging from the transformer in the center of the machine. Normal? or did I get this thing hot?
    Syncrowave 250 DX
    MillerMatic 212
    Hypertherm plaz
    Coors light on tap

  9. #9
    Join Date
    Nov 2003
    Posts
    2,792

    Default

    Quote Originally Posted by Barnage View Post
    Also, noticed some "stalactites" of plastic? hanging from the transformer in the center of the machine. Normal? or did I get this thing hot?
    Could you post some pics?? could be either..

    tough to tell without seeing...
    .

    *******************************************
    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 Mills, Lathes & a Rat Tail File..

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