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Piecemaker 25A Parts

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  • BigMike782
    replied
    Didja figger it out?

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  • BigMike782
    replied
    Willy is out pic'n me
    His pics point out that you can use a 52FN and 23 series thread on nozzle or 52 diffuser and a 32 insulator with a 22 series slide on nozzle which I failed to mention. Both using 14 series contact tips.

    Leave a comment:


  • Willy
    replied
    As Mike stated you will need the Miller 169729 adapter in order to mount the nozzle, if that adapter would fit. I believe it has 3/8/x24 threads for the diffuser/tip adapter end and 1/2x20 threads for the gooseneck end, I think.

    However since your gooseneck will accept the 169728 tip adapter i doubt that the Miller 169729 adapter will work.

    But as Mike suggests, a Tweco #2 diffuser will screw into your existing goosneck as is, since it appears to have an existing 3/8x24 internal thread already. The Tweco #2 diffuser will allow you to mount various style nozzles either by using a threaded insulator so that you can mount slip-on nozzles or you can mount threaded insulated nozzles directly onto the diffuser.

    An example of each below.





    As a side note it can be advantageous to be able to use various types of nozzles in the many scenarios that one is likely to encounter. Various orifice sizes, recessed, flush, or proud contact tip positions, or spot weld nozzles all have their uses from time to time.

    Although I have a number of different nozzles, a while back I needed a really small nozzle due to the tight confines I was working in. I did not have one small enough so I took a diffuser meant for a Lincoln 100L gun, which is all metric and modified it using a 3/8x24 brass nipple so that it would mount like my Tweco #2 on the existing goosneck of my gun. Saved my bacon that day and gives credence to that old saying that there's more than on way to skin a cat.





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  • BigMike782
    replied
    Mark, unless your goose neck has the correct thread for a Miller 169729 you won't have anything to slide the nozzle onto.
    If you use Tweco parts the nozzle or insulator will thread onto the diffuser.

    The reason Miller and the welding suppliers don't offer this option?
    Miller is in the business to new equipment and support parts for recent machines.
    Most welding supply counter people are not welders......some are. Because they don't weld most don't fix stuff. Because they don't fix stuff they are accustomed to "just get me a new ?"

    I hope you can fix it.

    Leave a comment:


  • garagemark
    replied
    Thanks to your suggestions, poking and prodding, I think we're just about home. I took the gun apart last night and found that, indeed the diffuser is threaded into the gooseneck, and is a 3/8"-24 thread, 1-1/8" long.

    So, just for giggles this morning, I searched for general Miller diffusers (since Miller owns Hobart). In the images I found what looked to be the same shaped piece of brass. A quick click or two verified dimensions- #169728 is a perfect 3/8"-24 match for my old gun, is the correct length, and the thread pitch for the contact tip is 1/4"-28 thread, a very common size. The correct .035 tip for this diffuser is Miller #000068.

    I still haven't figured out the nozzle adapter that screws onto the outside of the gooseneck, nor the slip fit nozzle that goes over it, but I haven't the need for those pieces. How often do you ruin a nozzle? I never have. But I'll bet there is a workaround out there for this issue as well. When/ if I need it I'll dive in again.

    So tell me, why won't the Miller people or welding supply houses come up with and publish the same retrofit option? So they can sell me a new gun? Oh well...

    I'm going to order these parts and physically verify compatibility, then stock up on them! I don't treat my equipment badly, so I expect this gun to last until I can't see to weld anymore.

    Thanks to you guys again for direction, suggestion, offer and opinion. I learned a lot from this exercise. Nice to have good teachers!

    Cheers,
    Mark

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  • garagemark
    replied
    Sorry folks, worked late last night. Should have some time this evening to pull it apart and take some measurements.

    Please stand by.

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  • Willy
    replied
    Originally posted by BigMike782 View Post
    Mark,

    One possibility is to change all of the front end consumables. Does the diffuser thread into or onto the goose neck?
    What thread is it?

    What is the serial number of the machine?
    Originally posted by BigMike782 View Post
    Does the diffuser thread into the goose neck? If it does what thread is it?
    If it does and it 3/8 fine you could thread a 52FN diffuser in then use Tweco 14 series contact tips and 23 series nozzles.
    If it doesn't you might be able to make a threaded adapter to adapt a Tweco style diffuser and follow the path above.
    I could not find any books old enough to show the break down of that gun.
    I think Mike has the best overall answer for a long term solution. I know that the Piecemaker 14A uses the 3/8x24 diffuser thread so hopefully the 25A gun is the same.
    52FN diffusers,insulators,nozzles and matching tips are readily available and would make consumables replacement so much more simple, never mind cheaper.

    Leave a comment:


  • BigMike782
    replied
    Does the diffuser thread into the goose neck? If it does what thread is it?
    If it does and it 3/8 fine you could thread a 52FN diffuser in then use Tweco 14 series contact tips and 23 series nozzles.
    If it doesn't you might be able to make a threaded adapter to adapt a Tweco style diffuser and follow the path above.
    I could not find any books old enough to show the break down of that gun.

    Leave a comment:


  • garagemark
    replied
    Originally posted by BigMike782 View Post
    If the gun has a Tweco power pin I can probably set you up with a nice gun cheap.
    Thank you very kindly for your offer. If worse comes to worst, I may not have a choice. But my gun is in like new condition; I'd hate to have to toss it in the junk pile simply for a one dollar contact tip or a five dollar nozzle.

    I'm going to soldier on for a bit until my frustration starts to affect my marriage. Then I MIGHT break down and call it quits.

    Thanks again.

    Leave a comment:


  • BigMike782
    replied
    If the gun has a Tweco power pin I can probably set you up with a nice gun cheap.

    Leave a comment:


  • garagemark
    replied
    Willy, after some more inquiries last night I received a reply this morning from a welding shop I wrote to:

    Hi,
    We are not able to support this gun for consumables. Below is a link to a a company that has a conversion kit for the end of the gun -that allows for new consumables.

    https://www.usaweld.com/Hobart-Piece...aker-parts.htm

    Hope this helped,
    Bob

    If the 14A and 20A have (had) the same neck style, I could possibly do a retrofit for about 25 bucks. But I also might find tips and such like you did for the 14A. I'll check your source out.
    I also put this out on the Hobart forum. We'll see what they say.

    And thank you all for helping.

    Leave a comment:


  • Willy
    replied
    Having a quick look around this AM and found these:



    They appear to be 1/4" x 20 tpi, any reason they would not fit your gun?

    HOBART PIECEMAKER 14-A & 20-A TIP & NOZZLE KIT

    Leave a comment:


  • 66vette
    replied
    Ask your question on the Hobart Forum, they may have a resolution for you.


    https://weldtalk.hobartwelders.com/

    Leave a comment:


  • Willy
    replied
    Could you possibly modify the very popular Tweco 14 series tip to fit your gun? My Lincoln uses this size and I would think due to the length of these tips it would be possible to adapt it to yours.
    They are of course 1/4"x28 tpi like everything else and are .25" dia. but it looks like it may be an option. Threads and a countersunk bevel where the wire feeds into it and you're done.

    Tweco style 14 Series Standard Duty Contact Tip accommodates 0.03" wire and is compatible with 200 - 400 A Radnor Radnor Pro, Tweco Tweco No. 2, Tweco No. 3 as well as Tweco No. 4 MIG guns. Also, fits Most Prostar and Lincoln style mig guns using Tweco style contact tips

    Leave a comment:


  • BigMike782
    replied
    Don't throw the towel in

    Leave a comment:

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