Runaway Trucks

Discussion in 'Experienced Truckers' Advice' started by Hammer166, Dec 13, 2020.

Is a runaway truck always driver error?

  1. Yes

    23 vote(s)
    39.0%
  2. No

    36 vote(s)
    61.0%
  1. snowwy

    snowwy Road Train Member

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    Rubber grommets are cheap and spares should always be carried. Usually makes glad hands tighter. Barring the aluminum isn't damaged somehow
     
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  3. D.Tibbitt

    D.Tibbitt Road Train Member

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    Not as fast as u think? U would be better off putting brake pedal to the floor than pulling the knobs.. Pulling the knobs only sets the parking break which is most likely only on 1 axle.. Using brake pedal u have brake power to all axles...But then again it should never get to that point...
     
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  4. Moosetek13

    Moosetek13 Road Train Member

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    Didn't I just mention something about that?
    The engine shut off and there were no engine brakes, with the transmission in N.
     
  5. AModelCat

    AModelCat Road Train Member

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    If you're driving appropriately, the brakes will be cool(er) and therefore more capable of stopping the truck in an emergency situation. If you've been riding the brakes all the way down the hill, they're going to be hot. You're that much closer to brake fade.
     
  6. Hammer166

    Hammer166 Crusty Information Officer

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    Agreed, popping the knobs is really only if you have a service break failure and what you have left isn't enough. The post that was in response to, his glad hand popped off.

    IIRC, a new can has roughly 60 psi of spring pressure. Not a full application but stronger than a normal brake input. That a little drops over time as the spring ages, but not dramatically.

    Fleet trucks are the ones that tend to only have one axle of park brakes, and I don't think I've seen a trailer without Spring brakes on both axles. But if you've had a major leak on the service side, the knobs are coming out on their own before too awful long anyways.
     
  7. Moosetek13

    Moosetek13 Road Train Member

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    And that is probably the reason I was able to stop safely.
    Thank you for the obvious.
     
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  8. AModelCat

    AModelCat Road Train Member

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    So why bother to quote my first post then in the first place if you already know the obvious?
     
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  9. scott180

    scott180 Road Train Member

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    Tankers don't like sudden stops and ya hear a few stories of drivers burning to death or worst a driver burned bad but living and you don't do any jerking movements to that truck. Your right about pulling the knobs if the car had moved or cars up ahead but if its clear and you can slow the truck to a controlled stop using other means you do that instead. I was lucky I had other means at my disposal and more importantly had thought about it beforehand.
    That's one of the benefits of TTR for drivers. The chance to talk and think about a problem before it happens so if it does you have options.

    When the occasion allows practice downshifting and using the jakes to slow down. I've noticed different trucks handle differently.
     
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  10. MACK E-6

    MACK E-6 Moderator Staff Member

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    ...A dangerous drawback!! o_O:eek:
     
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  11. MACK E-6

    MACK E-6 Moderator Staff Member

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    If you do it right even that’s manageable, barring the possible freak mechanical issue that is.
     
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