Truckers Report Jobs

Find Trucking Jobs

Company Driver Company Driver Dry Van Dry Van Flatbed Flatbed Refrigerated Refrigerated Specialized Specialized Owner Operator Owner Operator
More Trucking Job Searches ⌄ Fewer Trucking Job Searches
⌃

Can someone please help me with my trailer air brake problem???

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Supertrucker47, Sep 18, 2018.

Page 3 of 3
  1. Sep 19, 2018 #21
    Supertrucker47

    Supertrucker47 Bobtail Member

    11
    0
    Sep 18, 2018
    0
    Okay thanks. I'll. Heck those out and let you know what happened
     
    Supertrucker47, Sep 19, 2018
    Supertrucker47, Sep 19, 2018
    #21
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. Sep 19, 2018 #22
    Supertrucker47

    Supertrucker47 Bobtail Member

    11
    0
    Sep 18, 2018
    0
    Something wierd I was helping a buddy today driving an 01 Mack rd triaxle and I put the trolley brake on and unhooked the blue gladhand and no air was coming out? But it works perfectly with his trailer. How could that be?
     
    Supertrucker47, Sep 19, 2018
    Supertrucker47, Sep 19, 2018
    #22
  4. Sep 19, 2018 #23
    AModelCat

    AModelCat Road Train Member

    29,140
    158,340
    Jul 7, 2015
    Canuckistan
    0
    Tractor protection valve. It blocks off air flow to the service gladhand unless there is system air pressure in the supply line.
     
    AModelCat, Sep 19, 2018
    AModelCat, Sep 19, 2018
    #23
  5. Sep 19, 2018 #24
    bjrc

    bjrc Light Load Member

    81
    96
    Sep 14, 2018
    0
    If you have access to another truck and trailer swap around to find your problem, but like AModelCat said your blue hose should not be pressurized when you break it loose.
     
    bjrc, Sep 19, 2018
    bjrc, Sep 19, 2018
    #24
  7. Sep 19, 2018 #25
    Supertrucker47

    Supertrucker47 Bobtail Member

    11
    0
    Sep 18, 2018
    0
    Okay thanks guys. I'm going to bring the trailer to my buddy's Saturday morning and hook the trailer to his truck. If the trailer works fine think my best bet is o change the valve in the truck?
     
    Supertrucker47, Sep 19, 2018
    Supertrucker47, Sep 19, 2018
    #25
  8. Sep 19, 2018 #26
    bjrc

    bjrc Light Load Member

    81
    96
    Sep 14, 2018
    0
    Recheck hose connections first, could have one crossed during cab changeout
     
    bjrc, Sep 19, 2018
    bjrc, Sep 19, 2018
    #26
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

    • Page 3 of 3