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Thread: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine today

  1. #26
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    Re: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine tod

    it looks like the "missing brush" is on the exciter. . . .which was apparently made in spanish cause i dont understand it. . . . . . .

    ive jumped a few times scrolling down and seeing it that way, but it was apparently run for a while like that so im guessing its factory. . . . . kind of weird
    bosses stuff:
    trailblazer 325
    maxstar 200

    my stuff:
    sa 200
    fronius transpocket 180
    100 amp Lincoln w/f
    97 f350 DIT

    Kevin

  2. #27
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    Re: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine tod

    If you consider cleaning up the commutator with sandpaper do not use emery cloth!! The abrasive is conductive and will wreak havoc with the machine electrically if used and not cleaned out thoroughly. When I mean thorough, I don't think you could clean it up sufficiently and it remain together.

    Best purchase a commutator stone to dress this item.
    Slob

    Purveyor of intimate unparalleled knowledge of nothing about everything.

    Oh yeah, also an unabashed internet "Troll" too.....

  3. #28
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    Re: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine tod

    bwparts.com

    stumpfweldingsupplies.com

    billswelderrepair.com

    weldmart.com

    all good sources of information and helpful people in my experience. i hope i didnt leave any out
    bosses stuff:
    trailblazer 325
    maxstar 200

    my stuff:
    sa 200
    fronius transpocket 180
    100 amp Lincoln w/f
    97 f350 DIT

    Kevin

  4. #29
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    Re: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine tod

    4th pic is left side of exciter, 8th pic is right side of exciter.

  5. #30
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    Re: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine tod

    I hope 1 day to make the welder run and look like this project i just finished, i'm nuts 4 old Caterpillars.


  6. #31
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    Re: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine tod

    Quote Originally Posted by 92dlxman View Post
    it looks like the "missing brush" is on the exciter. . . .which was apparently made in spanish cause i dont understand it. . . . . . .

    ive jumped a few times scrolling down and seeing it that way, but it was apparently run for a while like that so im guessing its factory. . . . . kind of weird
    Its 60 years old and 4 sure messed with, i wouldn't take anything as factory. thanks every1

  7. #32
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    Re: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine tod

    There is a like machine on ebay now. This one is set up for dual operators. I don't think this one is as old as your machine.

    http://www.ebay.com/itm/221837013504...%3AMEBIDX%3AIT

    Dan D
    Manipulator Of Metal

  8. #33
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    Re: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine tod

    Did you get this machine to weld I was just curious ?

  9. #34
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    Re: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine tod

    not yet, picking up new axles 4 it this week, got 2 make it mobile b4 going further

  10. #35
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    Re: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine tod

    the ebay machine above has been purchased by a caterpillar collector and heading to Minnesota, its a 1963 model using a cat d311-h engine.

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    Last edited by wrenchguy; 09-10-2015 at 02:05 PM.

  11. #36
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    Re: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine tod

    brochure pages of my Cat d315 twin arc welding machine.

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    Attached Images Attached Images  

  12. #37
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    Re: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine tod

    Today i recoupled the welder to engine, removed brushes, cleaned commutators, reinstalled brushes. I noted the chips and grooves the brushes showed b4 installing. They maybe original to the machine. I covered 6 bare wires in control boxes and 1 on the exciter temporary with tape. Machine #1 would strike arc but not able to continue a bead, but more than just sparkle. [kinda hard 2 explain]. Machine #2 seemed to weld ok but not super with the 1/8" rod i had. 1 brush tension spring mount tang broke while messing with the exciter brushes and didn't hold correct tension. Am i correct assuming both machines work off 1 set of exciter brushes, and can i move the exciter brushes to the other mounts? thanks 4 looking & help.

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    the gobs in the center r from machine 1, the beads left and right of center r from machine 2.

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    The welding machine commutators kinda glazed up after a hour of running????




  13. #38
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    Re: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine tod

    Thought i'd share some info from Lincoln about this 2 operator welding machine, mentions my code number at bottom of page.



    wiring diagram 4 my machine.

    Last edited by wrenchguy; 10-09-2015 at 09:37 PM.

  14. #39
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    Re: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine tod

    That's pretty neat.

  15. #40
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    Re: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine tod

    I saw your build on smokstak - cool! This place is the Lincoln experts.... judging by the weld and the appearance of the machine I wonder if the exciter is doing its thing, and is all the juice reaching the main generator?
    Use a bigger hammer.

  16. #41
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    Re: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine tod

    Quote Originally Posted by nickel_city_fab View Post
    I saw your build on smokstak - cool! This place is the Lincoln experts.... judging by the weld and the appearance of the machine I wonder if the exciter is doing its thing, and is all the juice reaching the main generator?

    I have a local help who is proficient with motors and generators. We are going to repair and rewire everything we can reach. Every connection is rusted/corroded bad.

    I been reading alot about the Lincoln builds here, especially the shortys, i guess i'm working on a extra longy being the hood is just under 10'.
    Its in disassembly now.

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  17. #42
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    Re: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine tod

    Quote Originally Posted by wrenchguy View Post
    I have a local help who is proficient with motors and generators. We are going to repair and rewire everything we can reach. Every connection is rusted/corroded bad.

    I been reading alot about the Lincoln builds here, especially the shortys, i guess i'm working on a extra longy being the hood is just under 10'.
    Its in disassembly now.
    We don't see too many of those around here, yours might be the first one that I know of anyways.. congrats! Somewhat rare beast you have there as far as I know. Hope you document it as much as possible, somebody else might need the info someday.
    Use a bigger hammer.

  18. #43
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    Re: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine tod

    more taking it apart.




    gallon can of thinner for size comparison.


    reactor for machine #2 that wouldn't make a bead, it has disconnected/broke electrode strap at the connection at the bottom outa sight.




  19. #44
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    Re: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine tod

    more taking apart which i'm good at.
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    at point of pencil cardboard broken away with windings showing.
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    skid turned into trailer.
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  20. #45
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    Re: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine tod

    Nice Job so far Mike! Keep at it even if the weather turns foul! Jeff

  21. #46
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    Re: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine tod

    Quote Originally Posted by drujinin View Post
    Nice Job so far Mike! Keep at it even if the weather turns foul! Jeff
    yep, getting the bigger stuff done outside that i can't get in the shop because of other projects, thanks

  22. #47
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    Re: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine tod

    Looking good Mike. Man you have really got into yours. I got mine setting in the shop also. Will have to start a post with some pictures one of these day. Just been real busy with to many other projects. I hope I dont need have to go as deep as yours. Mine welded great when I played with it one day but need paint and some cosmetic work along wih new axles.

  23. #48
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    Re: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine tod

    can someone provide the test values of the fdr 125 b exciter coils used on my sae 300 welder ?

  24. #49
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    Re: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine tod

    Quote Originally Posted by 92dlxman View Post
    it looks like the "missing brush" is on the exciter. . . .which was apparently made in spanish cause i dont understand it. . . . . . .

    ive jumped a few times scrolling down and seeing it that way, but it was apparently run for a while like that so im guessing its factory. . . . . kind of weird
    In conversation with a old school welder repair guy about this exciter and missing brushes he said "it is a optional oversize exciter but the second set of brushes weren't installed but could be if needed for another 15 amps." he said "most likely for a early style wire feeder or other accessory. "

  25. #50
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    Re: I became caretaker of Caterpillar D315 Lincoln 300x2 Twin Arc welding machine tod

    pounding out dents, taking most parts to bare metal removing loose and feathering the mill scale, priming and finish paint. 1 bite at a time.



    bare metal fuel tank in back ready for primer

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