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Lincoln IdealArc Tig-300/300 Question

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  • H80N
    replied
    Originally posted by Mike8623 View Post
    For tig welding:

    Guys, I've got the above welder and have a question regarding the two cables on the machine and exactly how to bolt them on. One is larger diameter than the other and goes to a large spring clamp that is attached to my welding table, Does that cable bolt on to bolt labeled "ELECTRODE" or to the bolt labeled "TO WORK". The other cable is narrower in diameter and goes to the torch "stinger", does it bolt to the bolt labeled "ELECTRODE" or to the bolt labeled "TO WORK"?
    Stinger & TIG torch connect to ELECTRODE....

    WORK is often called GROUND

    download your manual here....

    http://www.lincolnelectric.com/en-us...r-manuals.aspx



    Leave a comment:


  • Mike8623
    replied
    Well guys an update on my machine. I finally got it over to be looked at. I had them go all through it, had it cleaned and tested. The problem turned out to be very simple. I had holes in my argon gas line and wasn't getting any shielding gas. So bottom line, I got a new line and my machine was totally went through and cleaned up. I'm now welding and a happy camper. Should last me the rest of my life and whoever I pass it down to. Thanks to all who helped me along.

    Leave a comment:


  • Mike8623
    replied
    I'll post what they find out, it won't be until November however, got to budget it in and then weather permitting, winter is pretty close up here.

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  • H80N
    replied
    Sorry we couldnt do better in resolving your issues....

    best of luck with service..... Pls keep us informed as to how it goes.....

    that is a fine old machine... hope to hear that it is humming along again soon.....

    Leave a comment:


  • Aeronca41
    replied
    Good luck, Mike. Sorry we couldn't get the problem resolved.

    Leave a comment:


  • Mike8623
    replied
    I appreciate all the info guys. I'm going to take it to Missoula I believe the problem is beyond my ability.

    My wife and I are pretty reclusive, I don't have friends just acquaintances, works best for me. We live way up on a mountain all by ourselves, just our dogs to keep the bears out. No people just critters, we don't ask for help and do everything we can for ourselves if we can't do it we pay to have it done. We don't have a lot of money so we have to wait sometimes for quite awhile before we do something but it works for us.

    Thanks again to all that responded, we all did out best, it's just beyond me and long distance problem solving, again thanks

    Leave a comment:


  • ryanjones2150
    replied
    Maybe you have a friend that is a little more experienced to come look at it before you pack it all up?

    Leave a comment:


  • H80N
    replied
    Originally posted by Mike8623 View Post
    Well, Thanks to all who responded, I've done all as instructed and can't think of anything else I am missing. I am still eating up my torch rods and eating big holes in my work. Looks like I will be loading up the whole kitten-ta-boodle and taking it down to be looked into, serviced and repaired if needed. At least it will get a good cleaning, that being said if they can't find anything wrong with the machine then it has to be me, so I'll have to go back to school, it's a long drive to Missoula.
    Another Thought...... That this may be a magnetic amplifier machine.... if the mag amp power supply is off or fuse is blown....

    the machine will output full throttle for the range it is set... so the pedal will not work... so you will be burning up tungstens and blasting holes in your work

    if this is the scr version... you may have one or more blown scr's.... but it would behave the same way

    We need a schematic................
    Last edited by H80N; 09-21-2016, 09:34 PM.

    Leave a comment:


  • Mike8623
    replied
    Well, Thanks to all who responded, I've done all as instructed and can't think of anything else I am missing. I am still eating up my torch rods and eating big holes in my work. Looks like I will be loading up the whole kitten-ta-boodle and taking it down to be looked into, serviced and repaired if needed. At least it will get a good cleaning, that being said if they can't find anything wrong with the machine then it has to be me, so I'll have to go back to school, it's a long drive to Missoula.

    Leave a comment:


  • H80N
    replied
    In their day the washing machine sized "GREY" Lincoln IdealArc Tig-300/300 were a formidable piece of equip

    I put a lot of hours on them in the 1970's

    Leave a comment:


  • Aeronca41
    replied
    Summary of polarity and connections-maybe you already have this but if not .....please forgive me if this is redundant...
    Connect your torch to the ELECTRODE terminal. Connect your "ground clamp" to the WORK terminal. Select DC - (not DC+) on the polarity switch (which you have done). You should now be set to tig steel. You will be operating EN (Electrode Negative, or DC straight) polarity.

    Leave a comment:


  • ryanjones2150
    replied
    I'm not familiar with your machine. A lot of machines you just swap the leads around. But since you say yours has "work" and "electrode" labels on your hookups, my guess is you have a polarity selector lever of some sort. My old Helga has that. Makes sure it's set to DCEN, also called DC straight.

    Leave a comment:


  • Mike8623
    replied
    Thanks to all that responded, my experience is not that great. I welded very well years ago in Gunsmith school, but haven't done any in 15 years plus. I'm just starting to get back into it.

    So I assume I need EN. How do I go about that?

    I'm welding small parts. Once set correctly and or fixed I plan on practicing, practicing, practicing until I get right and am ready to go. I welded really well years ago, surely it won't take as long to get back to where I was as it did back then..............I'll get it right as soon as I determine whether it is me or the machine. I'm just trying to rule out whether it is the machine first. If I have to I'll haul it down to a Company that can determine that and while they're at it they can go through it and do a service.

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  • ryanjones2150
    replied
    Setting your machine up for tig welding EP will make you sad....all of those other settings listed notwithstanding.

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  • H80N
    replied
    Do not know your experince level

    might be operator related.............low gas flow rate CFH.... or excessive arc length ....or...???

    could be worthwhile to review TIG guidelines

    https://www.millerwelds.com/resource...ding-resources

    Last edited by H80N; 09-20-2016, 06:28 PM.

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