Air gauge, why 2 needles?

Discussion in 'Questions From New Drivers' started by J Man, Jan 13, 2012.

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  1. Jan 13, 2012 #11
    J Man

    J Man Medium Load Member

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    I'm hoping that I just heard him wrong or misunderstood what he was trying to tell me.
     
    J Man, Jan 13, 2012
    J Man, Jan 13, 2012
    #11
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  3. Jan 13, 2012 #12
    blackw900

    blackw900 The Grandfather of Flatbed

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    Uhhhhhhh.......No.
     
    blackw900, Jan 13, 2012
    blackw900, Jan 13, 2012
    #12
  4. Jan 13, 2012 #13
    J Man

    J Man Medium Load Member

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    Yup, just misunderstood him. Good, because I was really confused. Thanks for the help guys.
     
    J Man, Jan 13, 2012
    J Man, Jan 13, 2012
    #13
  5. Jan 13, 2012 #14
    WitchingHour

    WitchingHour Road Train Member

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    The secondary air circuit is normally pneumatically actuated. Air pressure engages it. If the primary air circuit undergoes a complete failure, the foot valve travels down until it can actuate the secondary air circuit mechanically, and it'll still meter air, and still allow you to bring that truck safely to a standstill, which when I said "ASAP", I should've stressed that it meant "immediately".
     
    WitchingHour, Jan 13, 2012
    WitchingHour, Jan 13, 2012
    #14
  7. Jan 13, 2012 #15
    blackw900

    blackw900 The Grandfather of Flatbed

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    That aint how it works....Not even close.
     
    blackw900, Jan 13, 2012
    blackw900, Jan 13, 2012
    #15
    Hanadarko and cc tanker Thank this.
  8. Jan 13, 2012 #16
    Superhauler

    Superhauler TEACHER OF MEN

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    my truck has a guage for trailer application and a guage for tractor application. also a guage for trailer air supply.
     
    Superhauler, Jan 13, 2012
    Superhauler, Jan 13, 2012
    #16
    J Man Thanks this.
  9. Jan 13, 2012 #17
    J Man

    J Man Medium Load Member

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    Checked the Peterbilt and two Kenworths today in the yard - no on the Peter but both Ken's had them.
     
    J Man, Jan 13, 2012
    J Man, Jan 13, 2012
    #17
  10. Jan 13, 2012 #18
    07-379Pete

    07-379Pete Crusty Commando-Pete

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    Well thats a first for me, never seen a brake application just for the trailer only.
     
    07-379Pete, Jan 13, 2012
    07-379Pete, Jan 13, 2012
    #18
  11. Jan 14, 2012 #19
    J Man

    J Man Medium Load Member

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    I've heard more chrome makes your truck go faster so maybe more dials makes it run better. :biggrin_25525:
     
    J Man, Jan 14, 2012
    J Man, Jan 14, 2012
    #19
  12. Jan 14, 2012 #20
    Hanadarko

    Hanadarko Independent Owner/Operator

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    Where does this crap come from?

    Seriously?? :biggrin_2552:
     
    Hanadarko, Jan 14, 2012
    Hanadarko, Jan 14, 2012
    #20
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