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Plz help with brake air system 2015 international Pro Star

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Yeti 1, Nov 14, 2018.

Page 2 of 2
  1. Nov 15, 2018 #11
    rbrtwbstr

    rbrtwbstr Road Train Member

    3,394
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    Jul 11, 2012
    in the bush somewhere
    0
    Take the black cap off the governor. There will be a stud sticking up with a nut holding it in place. Loosen the nut and turn the stud to adjust the governor cut out pressure. I'm thinking you'd turn the stud counter clockwise to lower the pressure. Don't forget to tighten the nut when done.
     
    rbrtwbstr, Nov 15, 2018
    rbrtwbstr, Nov 15, 2018
    #11
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  3. Nov 15, 2018 #12
    Ridgeline

    Ridgeline Road Train Member

    22,649
    120,865
    Dec 18, 2011
    Michigan
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    ALSO make sure the governor is installed right, we've had a few Bendix replacements that have ports that were switched around and caused issues.
     
    Ridgeline, Nov 15, 2018
    Ridgeline, Nov 15, 2018
    #12
  4. Nov 16, 2018 #13
    WitchingHour

    WitchingHour Road Train Member

    3,424
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    Apr 1, 2011
    Broomfield, CO
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    Follow the signal line from your air governor to your compressor unloading valve. You'll probably find a break in that line somewhere.
     
    WitchingHour, Nov 16, 2018
    WitchingHour, Nov 16, 2018
    #13
  6. Nov 18, 2018 #15
    Yeti 1

    Yeti 1 Bobtail Member

    30
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    Sep 19, 2017
    0
    Problem solved, the old drier never had the machine gun sound and the original plan was to replace just the air govenor.
    But at the shop to many suggestions were being floated around and somehow I got talked into replacing the whole unit with air govenor.
    So, back on went the old air drier and a brand new spankin $18 adjustable govenor Bam!! problem solved.
    Thx fellow Truckers, God bless all of you.
     
    Yeti 1, Nov 18, 2018
    Yeti 1, Nov 18, 2018
    #15
    stillwurkin Thanks this.
  8. Nov 18, 2018 #15
    Yeti 1

    Yeti 1 Bobtail Member

    30
    7
    Sep 19, 2017
    0
    The idea behind replacing the air drier came from lots of oil in the air tanks. Well, whoever drove this truck before I bought it, never ever drained the tanks.
    Now the tanks are drained daily and no oil at all is present.
     
    Yeti 1, Nov 18, 2018
    Yeti 1, Nov 18, 2018
    #15
    stillwurkin Thanks this.
  9. Nov 18, 2018 #16
    Yeti 1

    Yeti 1 Bobtail Member

    30
    7
    Sep 19, 2017
    0
    The bendix air govenor that came with the air drier was not adjustable along with the original one that came on the truck just preset at the factory. I bought an $18 adjustable govenor from Napa so I could adjust if needed. This one releases at 120psi not 135 like the preset bendix
     
    Yeti 1, Nov 18, 2018
    Yeti 1, Nov 18, 2018
    #16
    stillwurkin Thanks this.
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