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
⌃

Slow seting emergency brakes

Discussion in 'Volvo Forum' started by USFT, Jan 5, 2013.

Page 1 of 2
  1. Jan 5, 2013 #1
    USFT

    USFT Bobtail Member

    9
    2
    Dec 15, 2012
    0
    this problem i am having is on a dryvan trailer, trailer releases, drives and brakes fine, but when i set the emergency brake air starts to come back out the gladhand (being pushed back towards truck) and it takes a good 5 min before the emergency brakes are aplied, took down the valves and cleaned realy good. still the same problem, any ideas
     
    USFT, Jan 5, 2013
    USFT, Jan 5, 2013
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

  3. Jan 5, 2013 #2
    Driver of the year

    Driver of the year Medium Load Member

    442
    249
    Sep 28, 2012
    Tampa FL
    0
    Take it to a Mechanic!
     
    Driver of the year, Jan 5, 2013
    Driver of the year, Jan 5, 2013
    #2
  4. Jan 5, 2013 #3
    cuzzin it

    cuzzin it Road Train Member

    3,639
    11,471
    Jan 19, 2008
    Berea, KY
    0
    Water in the air tanks. turn the petcock to open on the air tanks
     
    cuzzin it, Jan 5, 2013
    cuzzin it, Jan 5, 2013
    #3
  5. Jan 5, 2013 #4
    dude6710

    dude6710 Road Train Member

    2,162
    622
    Mar 26, 2010
    MN
    0
    Back feed the system with air and isopropyl and see if it helps?
     
    dude6710, Jan 5, 2013
    dude6710, Jan 5, 2013
    #4
  7. Jan 5, 2013 #5
    USFT

    USFT Bobtail Member

    9
    2
    Dec 15, 2012
    0
    No water in tank,already checked
     
    USFT, Jan 5, 2013
    USFT, Jan 5, 2013
    #5
  8. Jan 5, 2013 #6
    dude6710

    dude6710 Road Train Member

    2,162
    622
    Mar 26, 2010
    MN
    0
    Ok then add isopropanol to the trailer tank.
     
    dude6710, Jan 5, 2013
    dude6710, Jan 5, 2013
    #6
  9. Jan 5, 2013 #7
    Richter

    Richter Road Train Member

    4,090
    1,700
    Feb 13, 2012
    Philadelphia Pa
    0
    Its not broken....Some trailers (rare) are set to discharge the air suspension when you apply the brake (thus loosing all their air). Most of arnt like that any more since then u need to air them back up. Most likly the parking brake sets instantly but it take a few min to loose all its air from tanks and suspension. The idea was to make the trailer more stable while loading or in heavy winds by dumping the suspension and letting the trailer rest on a hard surface. If you pull the gland hand it will drain through there as well.
     
    Richter, Jan 5, 2013
    Richter, Jan 5, 2013
    #7
  10. Jan 5, 2013 #8
    Richter

    Richter Road Train Member

    4,090
    1,700
    Feb 13, 2012
    Philadelphia Pa
    0
    did you do a tug test to verify the brakes were NOT set? Im guessing they are set and ur just still hearing air hiss from the tanks and suspension. If they truly arnt set, then its a different problem then I had on an old trailer.
     
    Richter, Jan 5, 2013
    Richter, Jan 5, 2013
    #8
  11. Jan 5, 2013 #9
    Nextlvl

    Nextlvl Bobtail Member

    17
    1
    Jan 5, 2013
    0
    I had a drop deck that did the same thing. We replaced the distribution valve on the front of the trailer air tank, and it fixed the problem on my trailer. Just a thought...
     
    Nextlvl, Jan 5, 2013
    Nextlvl, Jan 5, 2013
    #9
    CondoCruiser Thanks this.
  12. Jan 5, 2013 #10
    USFT

    USFT Bobtail Member

    9
    2
    Dec 15, 2012
    0
    That problem started last week it was fine before, and brakes are not set bcz trailer is still rolling, this is an older trailer, new chambers and airlines, i'm thinking the valve where the abs is mounted on might be bad
     
    USFT, Jan 5, 2013
    USFT, Jan 5, 2013
    #10
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

    • Page 1 of 2