Dry van trailer off slide rails

Discussion in 'Experienced Truckers' Advice' started by Flat Earth Trucker, Mar 29, 2024.

  1. 201

    201 Road Train Member

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    high plains colorado
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    Wow, I dragged a lot of wagons, even rail vans, and I don't think I've ever seen one jump the holes like that. Those side clamps are supposed to prevent that. Must have been one heck of a bump,,like bounced over RR tracks empty?
     
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  3. Tb0n3

    Tb0n3 Road Train Member

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    Earth
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    Wait. Push the rails out? The cleats need to come in. Those rails help keep the tandems aligned. I hope they didn't bend those rails.
     
  4. buddyd157

    buddyd157 Road Train Member

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    in all my 48 years, i ain't never seen that either.

    i HAVE seen dummies slide the tandems, and drive off, with out locking the pins though.
     
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  5. JB7

    JB7 Heavy Load Member

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    Laurel, MD
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    A Come-Along is used to pull things together. Looks like the guy in orange is using a hydraulic porta power which pushes apart what it is placed between.
     
  6. Grumppy

    Grumppy Trucker Forum STAFF Staff Member

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    West Monroe, La
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    Yeah, I've seen this a couple of times. Usually in my experience what happens is, someone would pull the old manual handle to slide the axles all the way forward on an empty trailer. Then forget to go back & release the handle & lock the pins. They get down the road going 40+ mph & come to a light or stop sign & hit the brakes. The tandoms lock up because there is no resistance & slam against the stops at the end of the rail. That causes the trailer to bow (or the tandoms to rock forward) enough that the retracted pins get above the rail while the shock (KABOOM) releases the manual handle, the pins release, now the pins are above the rail.

    To fix this, you'd reverse the process in some regard. We'd take a fork lift etc & lift the trailer up high enough for the pins to clear the rail in which the pins were resting on, pull the handle to retract the pins, lower the trailer & release the handle to lock the pin in the rails.
    Its a pretty easy/simple process once you've seen it done.
     
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  7. Ex-Trucker Alex

    Ex-Trucker Alex Road Train Member

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    Saw the aftermath of a guy who went down the road with the tandem pins in; he hit his brakes HARD, the tandems slid ALL THE WAY BACK, hit the stop, and the front axles locked, the tandems pivoted on the locked wheels, then flipped over (pulling all the air lines out), with the trailer next crashing down on the flipped tandems onto the Mansfield bar, dragging the upside-down tandems about 1/4 mile down the highway.....
     
  8. buddyd157

    buddyd157 Road Train Member

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    under a shade tree
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    jesus h. christ...

    i only have seen pics of say a rear-ended trailer, where the tandems are knocked out from under the trailer.
     
  9. Big Road Skateboard

    Big Road Skateboard Road Train Member

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    Yep, made a bunch of calls for that. Always because the slider handle was left out, or pins weren't locked in. First time brakes are hit hard, all the way to the back it goes, jumps and sits on the pins above the cleats.

    I always supported the back of the trailer with jacks, removed the cleats, dumped the air bags, then lowered the jacks.

    And installed new cleats
     
  10. Animosus

    Animosus Heavy Load Member

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    SE Wyoming
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    Weird how many of you have never seen this. We probably get 1 or 2 calls a month for this, not a crazy amount, but definitely not uncommon for us.
     
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  11. Flat Earth Trucker

    Flat Earth Trucker Road Train Member

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    These two repairmen were experienced professionals. Everything was put in place just as it should be.
     
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