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Thread: Towbar Incident Report

  1. #31
    4 Star General 3dAngus's Avatar
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    Quote Originally Posted by m16ty View Post
    I tend to agree. I just can't see a 1" pin breaking under normal conditions.
    Lynch pin falling out is a possibility. He did say the pin broke though.

    Stress test are run all the time in the Air Force. Fractures due to stress are known to bring down $70M fighter jets, or $100M cargo jets.

    Metals will only take so much abuse, and he did say he was pulling off the interstate when it happened, which would induce additional stress on the well worn pin or on the lynch pin.

    We'll never really know, but if you had the half of the pin, a mechanical analysis could be done to determine the problem, and more probable cause. Private individuals don't have the financial resources Uncle Sam does thought, so I'm not saying this is likely, but we have done every downed plane that ever fell in America to determine stress levels and cause/effect relationships.


    3 different kinds of Deuces, a M37, over 40 trailers, a few different diesel generators

  2. #32
    4 Star General ODdave's Avatar
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    Ok i read through quickly but is there anything left of the pin and do you have it? if so can we have pictures????????
    A dented beer can....

  3. #33
    4 Star General /Moderator doghead's Avatar
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    Ferro
    I guess the pin broke due to fatigue.
    Angus
    He did say the pin broke though.

    He never said he had any of the "broken " pin to prove it did break.
    M817, M818, M819, M35A2 w/w, M35A2, M109, M105, M116A2, M101A2, Pioneer tool trailer, MEP-002, MEP-017A, 5ton winch shear pins, Oral-B toothbrush

    Ah Beefco Industries Northeast marketing associate

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  5. #34
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    I have to agree with DH, when i was looking for lynch pins i compared the ones from tsc and maynards to the ones i use from fastenall and man are they chit! the ring has about half the tention and the pin is not even the correct diameter (smaller) fastenall is a bout twice as much but i specificaly requested a USA made product. They did an origin search and the ones they suppied me with seem far superior.
    A dented beer can....

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    4 Star General 3dAngus's Avatar
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    Quote Originally Posted by doghead View Post
    Ferro

    Angus

    He never said he had any of the "broken " pin to prove it did break.
    I see what you're saying.

    He should change the title from;
    "Towbar Pin Broke" to

    "Maybe the towbar Pin Broke"


    3 different kinds of Deuces, a M37, over 40 trailers, a few different diesel generators

  7. #36
    4 Star General /Moderator doghead's Avatar
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    Maybe we'll change the title after we get some more info from Adam, to confirm this is correct.
    M817, M818, M819, M35A2 w/w, M35A2, M109, M105, M116A2, M101A2, Pioneer tool trailer, MEP-002, MEP-017A, 5ton winch shear pins, Oral-B toothbrush

    Ah Beefco Industries Northeast marketing associate

    Don't judge a fish by its ability to climb a tree

    https://www.youtube.com/watch?time_continue=12&v=T6BTcEwtmZo


  8. #37
    Colonel bigugh20's Avatar
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    Adam, glad you or someone else didn't get hurt. I guess all the trouble that you go through checking, double checking, tripple checking your hookup only has to pay off one time. Good job with the heavy safety chain.
    Craig

    And so it begins:
    1971 AMGeneral M35A2 Sold
    1987 M105A2 Sold
    M37 erector set year unkown

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  10. #38
    4 Star General Ferroequinologist's Avatar
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    Ok, you guys are correct, I *don't* know that the pin broke for sure. I guess we can change the title to towbar pin fell out, or towbar incident, pucker factor 8. (not 10, I've had a 10, 10 is way worse.)

    I do know that my lynch pin was new, and that I wire tie them in, so that's why I *assumed* the pin broke. Angie also mentioned last night when we were talking about it again that she saw a bit bouncing down the road a few miles before she pulled ahead of me, that was not as large as a full pin but not just the golden lynch pin either. She just assumed it was road debris that got bounced up, and didn't think to mention it until I brought up the question of if the pin broke or not.

    I don't have a piece or the whole pin to be sure, and I didn't want to brave the interstate traffic walking back what could have been miles looking for it.

    We may never know if it truely broke or the lynch pin came out somehow. I guess the purpose of the thread is to remind others about what can happen, check your setup often, and make sure you have the chains that are rated to do the job.

    All we need is for one deuce to break loose and hurt or kill someone, and then it's bye bye hobby.

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  12. #39
    4 Star General 3dAngus's Avatar
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    You're a good man! And this is some great info. Thanks.

    Glad it all worked out. No pun intended...


    3 different kinds of Deuces, a M37, over 40 trailers, a few different diesel generators

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    4 Star General /Moderator doghead's Avatar
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    I looked at this thread as an after accident report. Analyze the data and make a reasonable summary. Learn from it.

    Thanks Adam, I appreciate it.
    M817, M818, M819, M35A2 w/w, M35A2, M109, M105, M116A2, M101A2, Pioneer tool trailer, MEP-002, MEP-017A, 5ton winch shear pins, Oral-B toothbrush

    Ah Beefco Industries Northeast marketing associate

    Don't judge a fish by its ability to climb a tree

    https://www.youtube.com/watch?time_continue=12&v=T6BTcEwtmZo


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