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
⌃

Check Valves in FLD air tank lines?

Discussion in 'Freightliner Forum' started by metric adjustable, Jul 9, 2012.

  1. Jul 9, 2012 #1
    metric adjustable

    metric adjustable Light Load Member

    140
    75
    Dec 16, 2010
    dunno; gps is down
    0
    In a '99 FLD are there any check valves in the air lines to each of the four air tanks to prevent air from leaking back out through the dryer or compressor, or is the only check valve the one built into the output of my AD-9 air dryer? My truck has finally started to leak the air system empty after sitting for a couple of days, with no audible leaks. Time to go underneath with a spray bottle of soapy water.
     
    metric adjustable, Jul 9, 2012
    metric adjustable, Jul 9, 2012
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

  3. Jul 9, 2012 #2
    Semi Crazy

    Semi Crazy Road Train Member

    3,033
    2,044
    May 13, 2011
    Middle Tennessee
    0
    Just in the AD9. I feel ya, bud. My '96 held air for years. Then she started with her incontinence!

    Had a brass fitting crack under the dash. Also the trailer brake Bendix TC7 valve has a plastic body and of course it is cracked right at the threads for the line fitting. I put a smear of pipe sealer on it and it holds air good enough for now. Takes 2 days in the summer to drop to 60 lbs. 1 day in the winter.

    Also those push in fittings are crap and leak when they get old. They just use them to put the trucks together quicker at the factory. My cab air bags line fitting leaks if ain't positioned just right.
     
    Semi Crazy, Jul 9, 2012
    Semi Crazy, Jul 9, 2012
    #2
    metric adjustable Thanks this.
  4. Jul 10, 2012 #3
    metric adjustable

    metric adjustable Light Load Member

    140
    75
    Dec 16, 2010
    dunno; gps is down
    0
    dang. here comes the soapy water, i guess.
    I only have two audible leaks so far; one is an air vent actuator (yup, push fitting), the other is a 13 year old air bag that burbles in the rain.

    at least leaks will be easier to find than rattles.
     
    metric adjustable, Jul 10, 2012
    metric adjustable, Jul 10, 2012
    #3
  5. Jul 11, 2012 #4
    micheal

    micheal Bobtail Member

    37
    16
    May 15, 2010
    Nichols,Wi
    0
    I would soap the straps that hold the tanks on ,thats where I found my leaks
     
    micheal, Jul 11, 2012
    micheal, Jul 11, 2012
    #4
    metric adjustable Thanks this.
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

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