Air line routing help needed please

Discussion in 'Freightliner Forum' started by dixieworkx, Dec 6, 2012.

  1. dixieworkx

    dixieworkx Light Load Member

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    Nov 15, 2012
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    you will be my hero...if you take the top off the dash and take pics from there it should do it and alot easier than taking out the center section...i really appreciate it you couldnt dream of how much...thankx...dixieworkx
     
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  3. dixieworkx

    dixieworkx Light Load Member

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    Nov 15, 2012
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    okay i did hook up lines correctly it looks like....so...anyone care to take a stab at why after changing the valve my trailer air supply button will not stay in ?..if holding it in air is coming from the gladhand for the trailer....also since changing valve air pressure does not stop building, and will go to 150+ if i let it....no problems with either before changing valve...
     
  4. oilfieldtrash

    oilfieldtrash Light Load Member

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    Oct 17, 2009
    Jones,Oklahoma
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    Tha knob will not stay in if it is not hooked to a trailer. It is supposed to be that way.
     
  5. dixieworkx

    dixieworkx Light Load Member

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    Nov 15, 2012
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    i have pushed it in on several tractors including this one with no trailer attached it wouldnt pop out and would just blow air out the line till pressure was low enough then it would pop...just never pushed it in with glad hands attached to each other till i installed the valve, and then only did it once...petes, w-9s, eagle pros, think even a volvo or two...all would just blow air out the trailer line...done it many times to clear moisture/bugs/trash from lines before hooking to a trailer....unless maybe its something new incorporated into the newer valves...
     
  6. Seanrgottc

    Seanrgottc Bobtail Member

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    Dec 24, 2019
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    Help replaced mv3 valve now when I release tractor brakes and then push in red knob to release trailer both pop out any help greatly appreciated
     
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