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Aren't we supposed to dump the air bags before we slide the 5th wheel?

Discussion in 'Experienced Truckers' Advice' started by expedite_it, Jan 30, 2022.

Page 3 of 7
  1. Jan 30, 2022 #21
    expedite_it

    expedite_it Road Train Member

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    I doubt that you or anyone else could slide my fifth wheel by hand. It's not made for that.
     
    expedite_it, Jan 30, 2022
    expedite_it, Jan 30, 2022
    #21
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  3. Jan 30, 2022 #22
    AModelCat

    AModelCat Road Train Member

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    Well lubed and a prybar would do it.
     
    AModelCat, Jan 30, 2022
    AModelCat, Jan 30, 2022
    #22
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  4. Jan 30, 2022 #23
    expedite_it

    expedite_it Road Train Member

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    yes but not without a pry bar
     
    expedite_it, Jan 30, 2022
    expedite_it, Jan 30, 2022
    #23
  5. Jan 30, 2022 #24
    AModelCat

    AModelCat Road Train Member

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    Technically that would still be by hand.
     
    AModelCat, Jan 30, 2022
    AModelCat, Jan 30, 2022
    #24
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  7. Jan 30, 2022 #25
    Speedy356

    Speedy356 Medium Load Member

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    Now you’re getting technical ;)
     
    Speedy356, Jan 30, 2022
    Speedy356, Jan 30, 2022
    #25
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  8. Jan 30, 2022 #26
    expedite_it

    expedite_it Road Train Member

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    Then I retract what I wrote in post #22. I stand corrected.

    What do you make of the fact that the Delmar book I referenced does not include dumping the air bags in the instructions of how to slide the fifth wheel?
     
    expedite_it, Jan 30, 2022
    expedite_it, Jan 30, 2022
    #26
  9. Jan 30, 2022 #27
    AModelCat

    AModelCat Road Train Member

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    Not all trucks have air suspension. Some that do have air suspension don't have the ability to dump the air.

    Its not really a one-size fits all thing.

    Some trailers don't even have landing gear. Some don't have landing gear that can be cranked (just drop legs).
     
    AModelCat, Jan 30, 2022
    AModelCat, Jan 30, 2022
    #27
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  10. Jan 30, 2022 #28
    expedite_it

    expedite_it Road Train Member

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    In the same book, the author said to dump the air bags when uncoupling from a trailer.

    I've been to thousands of shippers and receivers in my career. I've NEVER seen a trailer that does not have a landing gear that can be cranked. I think it's safe to say that 99.99%+ trailers have landing gear that can be cranked. Why not give instructions to dump the air bags if the truck has that button and to extend the landing gear until the air dumps out of the air bags if you don't have the "dump air bags" button?
     
    expedite_it, Jan 30, 2022
    expedite_it, Jan 30, 2022
    #28
  11. Jan 30, 2022 #29
    lester

    lester Midwest's #1 Feed Hauler

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    Someone else mentioned it already and I agree.
    If you crank the landing gear all the way to the ground and then dump your air bags the truck will basically be hanging from the king pin.
     
    lester, Jan 30, 2022
    lester, Jan 30, 2022
    #29
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  12. Jan 30, 2022 #30
    Last Call

    Last Call Road Train Member

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    No landing grear on these trailers.. I don't belive I've ever seen a RGN with a lading gear either and I'am pretty sure they acount for more than .01% of the trailers 20211209_095320.jpg
    My trucks don't have buttons for suspension dump either they have switchs
     
    Last Call, Jan 30, 2022
    Last Call, Jan 30, 2022
    #30
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