Your thoughts on this Idealarc 250 - Page 4
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  1. #76
    Join Date
    May 2014
    Location
    Southern Illinois
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    1,005

    Re: Your thoughts on this Idealarc 250

    On the front and back of the rotor assembly there are lined bands that set the tension on the rotor movement. Check out the parts diagram and you will see what I'm talking about.


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    Steve

    1990 Miller Dialarc 250
    1993 Miller Maxstar 140 STR
    2015 Lincoln MP210
    1966 Lincoln SA200 Redface

  2. #77
    Join Date
    Feb 2017
    Posts
    168

    Re: Your thoughts on this Idealarc 250

    I'm looking on page 8 and 9 of the manual, but don't see them called out. But I may not be looking for the right thing. But that's ok, I'm learning as I go here.

    My son had to work late last night, so it's still in the truck. Hopefully he can get over today sometime. After getting it inside and opened up, I'll take some pics of the insides. The amp control turned smoothly with one hand, but did seem stiff. I don't have anything to compare it to, so not sure if stiff is ok. I imagine that the bushings have not been lubricated in a long time. Although it does appear to be in better overall shape than many I've seen. Hopefully the insides will be just as nice.
    Home tinkerer and old tool junkie

    Lincoln SP 135 Plus
    Ĺincoln Idealarc 250/250
    AHP AlphaTIG 200
    Viper Cut 30 Plasma
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    Coal forge & anvil

  3. #78
    Join Date
    Jul 2012
    Location
    Kingsville,Texas
    Posts
    547

    Re: Your thoughts on this Idealarc 250

    Great machine/purchase, when you install power cord be careful with on/off switch. Broke switch on my machine, only removed side cover and was working on removing wires from switch. This creates a awkward position while wrenching and it broke. Its best to remove top cover , side cover and even switch from front panel.
    Was able to repair switch with epoxy glue and JB weld.

  4. #79
    Join Date
    Feb 2017
    Posts
    168

    Re: Your thoughts on this Idealarc 250

    Thanks for the heads up on the switch.

    I got the machine inside and covers off. It was wired with 6/4, I'm changing it back to 6/3 for my 50 amp plug. On the 6/3 wire I understand that red and black go to each side of the switch and white goes to the grounding terminal on the lower left side of the transformer. The previous owner had white going to the ground terminal and green going to the green wire off this thing on the top of the front panel. Not sure what it is, but the other 2 wire coming off it are grounds too. So it seem like some kind of common ground or suppressor? What do you think. He had the green wire wire on right in whoto) rigged to the green input, but it still has a ring terminal on it. The length and routing makes me think it should go to the grounding terminal on the side of the transformer. With the 6/3 wire and white going to the grounding terminal, I think it would be electrically correct. The wiring diagram doesn't seem to show it. Thanks.
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  5. #80
    Join Date
    May 2014
    Location
    Southern Illinois
    Posts
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    Re: Your thoughts on this Idealarc 250

    The green to the ground lug on transformer connect the others to the switch and H1 and H2 should be connected to the switch for 230V operation. H3 should be isolated.
    That's the way we hook ours up


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    Steve

    1990 Miller Dialarc 250
    1993 Miller Maxstar 140 STR
    2015 Lincoln MP210
    1966 Lincoln SA200 Redface

  6. #81
    Join Date
    Feb 2017
    Posts
    168

    Re: Your thoughts on this Idealarc 250

    Thanks Steve. That's what I have: H1 and H2 to the switch. H3 is unused, the end taped up. I'll run that green wire down to the terminal lug.

    Thanks for the quick reply!
    Home tinkerer and old tool junkie

    Lincoln SP 135 Plus
    Ĺincoln Idealarc 250/250
    AHP AlphaTIG 200
    Viper Cut 30 Plasma
    Harris O/A Port-A-Torch
    Coal forge & anvil

  7. #82
    Join Date
    May 2014
    Location
    Southern Illinois
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    1,005

    Re: Your thoughts on this Idealarc 250

    No problem. You see the tension adjustment bolts and band? Don't mess with those


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    Steve

    1990 Miller Dialarc 250
    1993 Miller Maxstar 140 STR
    2015 Lincoln MP210
    1966 Lincoln SA200 Redface

  8. #83
    Join Date
    Jan 2008
    Location
    Richmond, Virginia
    Posts
    7,033

    Re: Your thoughts on this Idealarc 250

    That other tin can is an HF bypass cap, in case you want to use a high frequency box with the welder.

    Attachment 1716881
    "USMCPOP" First-born son: KIA Iraq 1/26/05
    Syncrowave 250 w/ Coolmate 3
    Dialarc 250, Idealarc 250
    SP-175 +
    Firepower TIG 160S (gave the TA 161 STL to the son)
    Lincwelder AC180C (1952)
    Victor & Smith O/A torches
    Miller spot welder

  9. #84
    Join Date
    Feb 2017
    Posts
    168

    Re: Your thoughts on this Idealarc 250

    I saw those bands, but heeded your advice.

    It's all rewired, cleaned, lubed, reassembled and tested - works like a champ. Thanks to all of you who offered advice and guidance. It was a long trip to get it and I paid a decent price, but it's one heck of a welder and I'm sure it will out last me. It think it looks right at home under my welding table.

    Mission Accomplished!
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  10. #85
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    May 2014
    Location
    Southern Illinois
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    Re: Your thoughts on this Idealarc 250

    Looks great in its forever home ! Enjoy it


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    Steve

    1990 Miller Dialarc 250
    1993 Miller Maxstar 140 STR
    2015 Lincoln MP210
    1966 Lincoln SA200 Redface

  11. #86
    Join Date
    Mar 2005
    Location
    Under a Rock
    Posts
    3,225

    Re: Your thoughts on this Idealarc 250

    Looks great.
    yeah,what Olden said... thats a hi freq. bypass installed. (Lincoln T-12246)
    Miller 211/Spoolmate 100
    1961 Lincoln Idealarc 250
    Hypertherm PM 45
    Lincoln SP125 plus
    HTP 221
    Chicom spot welder



    True Wisdom only comes from Pain.

  12. #87
    Join Date
    Feb 2017
    Posts
    168

    Re: Your thoughts on this Idealarc 250

    Thanks guys. I don't expect to add TIG to this, but good to know.

    Are there any kind of rubber covers that can be but on the cable mounting studs? Being a safety engineer by trade, these exposed terminal studs worry me a little. Standing in front of the welder with damp trousers could be unpleasant. It seems lke rubber covers like those that cover batter terminals on car batteries might be a good idea.
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    Home tinkerer and old tool junkie

    Lincoln SP 135 Plus
    Ĺincoln Idealarc 250/250
    AHP AlphaTIG 200
    Viper Cut 30 Plasma
    Harris O/A Port-A-Torch
    Coal forge & anvil

  13. #88
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    May 2014
    Location
    Southern Illinois
    Posts
    1,005

    Re: Your thoughts on this Idealarc 250

    https://www.ebay.com/itm/362046088657

    Look around for best price


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    Steve

    1990 Miller Dialarc 250
    1993 Miller Maxstar 140 STR
    2015 Lincoln MP210
    1966 Lincoln SA200 Redface

  14. #89
    Join Date
    Mar 2005
    Location
    Under a Rock
    Posts
    3,225

    Re: Your thoughts on this Idealarc 250

    Meh...
    Don't be such a worry wart





    But actually a quick look through my junk drawer I found two of these...

    I think they are caps for a home heating oil burner nozzle.






    Sent from my iPhone using Tapatalk Pro
    Miller 211/Spoolmate 100
    1961 Lincoln Idealarc 250
    Hypertherm PM 45
    Lincoln SP125 plus
    HTP 221
    Chicom spot welder



    True Wisdom only comes from Pain.

  15. #90
    Join Date
    Feb 2017
    Posts
    168

    Re: Your thoughts on this Idealarc 250

    Its the safety engineer in me...
    Those little plastic caps seem like a simple solution, so long as they stay in place. I did a quick Google search, and there seems to be plenty to choose from. I'll check the auto parts stores.
    Home tinkerer and old tool junkie

    Lincoln SP 135 Plus
    Ĺincoln Idealarc 250/250
    AHP AlphaTIG 200
    Viper Cut 30 Plasma
    Harris O/A Port-A-Torch
    Coal forge & anvil

  16. #91
    Join Date
    May 2014
    Location
    Southern Illinois
    Posts
    1,005

    Re: Your thoughts on this Idealarc 250

    You really don't have to overthink everything but if it makes you happy, knock yourself out!


    Sent from my iPhone using Tapatalk
    Steve

    1990 Miller Dialarc 250
    1993 Miller Maxstar 140 STR
    2015 Lincoln MP210
    1966 Lincoln SA200 Redface

  17. #92
    Join Date
    Feb 2017
    Posts
    168

    Re: Your thoughts on this Idealarc 250

    I just went and dug around my electrical junk box and found a couple distributor wire rubber boots. They fit snuggly onto the terminals - problem solved.
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    Home tinkerer and old tool junkie

    Lincoln SP 135 Plus
    Ĺincoln Idealarc 250/250
    AHP AlphaTIG 200
    Viper Cut 30 Plasma
    Harris O/A Port-A-Torch
    Coal forge & anvil

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