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
⌃

QR-1C leaking

Discussion in 'Volvo Forum' started by rasymacmac21, Dec 23, 2015.

  1. Dec 23, 2015 #1
    rasymacmac21

    rasymacmac21 Light Load Member

    291
    155
    Sep 25, 2009
    East of the Mississippi.
    0
    QR-1C valve is leaking from the exhaust port when parking brakes are released and applied. I already checked the chambers, service relay valve, hoses and everything looks ok. I replaced the QR valve, brake treadle valve and tractor/trailer dash valve and same thing happens. Anyone knows what it could be? Seems like something in the air system is back feeding air to the QR valve.
     
    rasymacmac21, Dec 23, 2015
    rasymacmac21, Dec 23, 2015
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

  3. Dec 23, 2015 #2
    baha

    baha Road Train Member

    4,137
    2,836
    Jul 25, 2013
    ga
    0
    Can you make it change sounds by turning the E/brake knobs
     
    baha, Dec 23, 2015
    baha, Dec 23, 2015
    #2
  4. Dec 23, 2015 #3
    rasymacmac21

    rasymacmac21 Light Load Member

    291
    155
    Sep 25, 2009
    East of the Mississippi.
    0
    I don't know, didn't do that.
     
    rasymacmac21, Dec 23, 2015
    rasymacmac21, Dec 23, 2015
    #3
  5. Dec 23, 2015 #4
    DaveLV

    DaveLV Light Load Member

    182
    261
    Sep 18, 2015
    0
    Sounds like a maxibrake backfeeding. What did you do to check the chambers. Remove lines? Does it just happen when the buttons pushed in or when you step on the brake pedal? If so check the maxis. Could be signal in brake modulator but not high on the list.
     
    DaveLV, Dec 23, 2015
    DaveLV, Dec 23, 2015
    #4
  7. Dec 23, 2015 #5
    rasymacmac21

    rasymacmac21 Light Load Member

    291
    155
    Sep 25, 2009
    East of the Mississippi.
    0
    I removed the lines to the chambers and from the relay valves. It happens when i apply the brakes with the yellow button pushed in and then when i release the brakes, it starts to leak a little from the exhaust port.
     
    rasymacmac21, Dec 23, 2015
    rasymacmac21, Dec 23, 2015
    #5
  8. Sep 3, 2017 #6
    Hardworker

    Hardworker Light Load Member

    113
    21
    Jun 27, 2012
    Minneapolis, MN
    0
    Hey telling us end of the story will be great help
     
    Hardworker, Sep 3, 2017
    Hardworker, Sep 3, 2017
    #6
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

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