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DD15 - Adjusting the Air Governor

Discussion in 'Freightliner Forum' started by TheLittleGuy, Sep 3, 2014.

Page 1 of 2
  1. Sep 3, 2014 #1
    TheLittleGuy

    TheLittleGuy Medium Load Member

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    Apr 13, 2008
    Nashville, TN
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    I need to adjust the air pressure governor on my truck. but I'm not sure where it is at and what it looks like.I've tinkered with the one on ISX before. But nothing looks like that on this engine. images would be helpful please.
     
    TheLittleGuy, Sep 3, 2014
    TheLittleGuy, Sep 3, 2014
    #1
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  3. Sep 3, 2014 #2
    Skate-Board

    Skate-Board Road Train Member

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    Merrimack, NH
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    If it looks like this you just pull that black cap off. Under there is a nut and slotted bolt. Undo nut and screw in or out.

    [​IMG]
     
    Skate-Board, Sep 3, 2014
    Skate-Board, Sep 3, 2014
    #2
    double yellow Thanks this.
  4. Sep 3, 2014 #3
    Bendix Tech Team

    Bendix Tech Team Bobtail Member

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    CCW to turn up the gov and CW to turn down pressure for a bendix gov at least.
     
    Bendix Tech Team, Sep 3, 2014
    Bendix Tech Team, Sep 3, 2014
    #3
    angelor Thanks this.
  5. Sep 3, 2014 #4
    sailboatjim

    sailboatjim Light Load Member

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    Aug 27, 2014
    Boston, Mass
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    [​IMG]

    It may be non adjustable if it looks like this.
     
    sailboatjim, Sep 3, 2014
    sailboatjim, Sep 3, 2014
    #4
  7. Sep 3, 2014 #5
    Bendix Tech Team

    Bendix Tech Team Bobtail Member

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    If you have a Bendix AD-IS air dryer the govenor will be bolted right to it and look like the one right above^^ otherwise it will generally be bolted to the compressor head or close to it and be an adjustable governor.
     
    Bendix Tech Team, Sep 3, 2014
    Bendix Tech Team, Sep 3, 2014
    #5
    angelor Thanks this.
  8. Sep 3, 2014 #6
    TheLittleGuy

    TheLittleGuy Medium Load Member

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    Apr 13, 2008
    Nashville, TN
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    that's what the one on the isx looks like. But I am NOT finding it on the DD15
     
    TheLittleGuy, Sep 3, 2014
    TheLittleGuy, Sep 3, 2014
    #6
  9. Sep 4, 2014 #7
    Skate-Board

    Skate-Board Road Train Member

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    Merrimack, NH
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    Sorry, that's the extent of my knowledge. If you pull into any dealer I'm sure the service manager would be happy to come out and point it out.
     
    Skate-Board, Sep 4, 2014
    Skate-Board, Sep 4, 2014
    #7
  10. Sep 4, 2014 #8
    GrapeApe

    GrapeApe Road Train Member

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    Do you have an ADIS air dryer? If so, it should be mounted to the side of it and it most likely not adjustable. DD15's have the compressor mounted in the rear, not much room, so it usually on the dryer or remote mounted.
     
    GrapeApe, Sep 4, 2014
    GrapeApe, Sep 4, 2014
    #8
  11. Sep 4, 2014 #9
    Bendix Tech Team

    Bendix Tech Team Bobtail Member

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    if you cant find it, follow the small unloader line from the head of the govenor(usually 1/8" pipe) and it will take you to the govenor.
     
    Bendix Tech Team, Sep 4, 2014
    Bendix Tech Team, Sep 4, 2014
    #9
  12. Sep 14, 2014 #10
    Transtar4070B

    Transtar4070B Bobtail Member

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    Oct 13, 2011
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    If it's on a Newer Freightliner it will be located on the Air Drier.
     
    Transtar4070B, Sep 14, 2014
    Transtar4070B, Sep 14, 2014
    #10
    TheLittleGuy Thanks this.
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