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Trailer swing while backing and position of tandems?

Discussion in 'Experienced Truckers' Advice' started by expedite_it, Jan 21, 2022.

Page 7 of 8
  1. Jan 22, 2022 #61
    expedite_it

    expedite_it Road Train Member

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    well, it's the seesaw analogy parts of the thread that helped the most. Thank you!
     
    expedite_it, Jan 22, 2022
    expedite_it, Jan 22, 2022
    #61
    Trucker61016 and Kyle G. Thank this.
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  3. Jan 22, 2022 #62
    expedite_it

    expedite_it Road Train Member

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    Yes; in the same way that the fulcrum of the seesaw is the pivot point because the fulcrum is what is holding the seesaw up.


    Frankly, no, not really. I'm not really confused any more.
     
    expedite_it, Jan 22, 2022
    expedite_it, Jan 22, 2022
    #62
    Trucker61016 Thanks this.
  4. Jan 22, 2022 #63
    expedite_it

    expedite_it Road Train Member

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    I was initially confused because I thought that for something to pivot, the something that pivots would have to bend somehow (like how the tractor pivots on the kingpin of the trailer). But it's the most obvious thing in the world that a seesaw pivots on the fulcrum without bending. That's just as obvious to me as it is to anyone else. THe seesaw analogy helped me understand this.
     
    expedite_it, Jan 22, 2022
    expedite_it, Jan 22, 2022
    #63
    Kyle G. and MACK E-6 Thank this.
  5. Jan 22, 2022 #64
    MidWest_MacDaddy

    MidWest_MacDaddy Road Train Member

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    As long as you finally understand… that’s the most important part… ;-)
     
    MidWest_MacDaddy, Jan 22, 2022
    MidWest_MacDaddy, Jan 22, 2022
    #64
    Kyle G. and expedite_it Thank this.
  7. Jan 22, 2022 #65
    IH Truck Guy

    IH Truck Guy Road Train Member

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    629rhc.jpg
     
    IH Truck Guy, Jan 22, 2022
    IH Truck Guy, Jan 22, 2022
    #65
    tscottme, aussiejosh, Wasted Thyme and 7 others Thank this.
  8. Jan 22, 2022 #66
    Val_Caldera

    Val_Caldera Road Train Member

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    NO Physics Report Required For The Following:

    "Pivot Point" altered by a Grab-N-Release DRY 5th Wheel.
    "Pivot Point" altered by a few FLAT Tires (leaving Rims) on Tractor AND/OR Trailer Regardless of Load Weight.
    "Pivot Point", as verified, Altered at Trailer Dependent upon PIN Setting.
    "Pivot Point" altered when Trailer not on same Level as Tractor as well on ICE.
    "Pivot Point" altered when constrained by Contact with Other Trailer or A Solid Object, say, a Building.
    - - - -
    So anyways, I Hope You Have a Wonderful Pivot!!
     
    Val_Caldera, Jan 22, 2022
    Val_Caldera, Jan 22, 2022
    #66
    Trucker61016 and istumped Thank this.
  9. Jan 24, 2022 #67
    Trucker61016

    Trucker61016 Road Train Member

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    And we will now pivot to another topic.....
     
    Trucker61016, Jan 24, 2022
    Trucker61016, Jan 24, 2022
    #67
    buddyd157, Val_Caldera, God prefers Diesels and 1 other person Thank this.
  10. Jan 24, 2022 #68
    Cattleman84

    Cattleman84 Road Train Member

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    Here are a few pics that show the result of tail swing... Driver pulled straight forward and then steered hard to the right... The tail of his trailer smashed my passenger side mirror.

    0318201110.jpg 0318201109_HDR.jpg 0318201109a_HDR.jpg
     
    Cattleman84, Jan 24, 2022
    Cattleman84, Jan 24, 2022
    #68
    tscottme, Rocks, MACK E-6 and 4 others Thank this.
  11. Jan 24, 2022 #69
    Trucker61016

    Trucker61016 Road Train Member

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    Trucker61016, Jan 24, 2022
    Trucker61016, Jan 24, 2022
    #69
    God prefers Diesels, MidWest_MacDaddy and Cattleman84 Thank this.
  12. Jan 24, 2022 #70
    Mototom

    Mototom Road Train Member

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    Wtf was this guy thinking, three more feet forward and he would have been golden. Or just skim right as he pulls out.

    I guess we all make mistakes but tail swing is something I try to keep in my mind
     
    Mototom, Jan 24, 2022
    Mototom, Jan 24, 2022
    #70
    tscottme, MACK E-6, Cattleman84 and 1 other person Thank this.
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