Trailer pressure protection valve

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by God prefers Diesels, Mar 3, 2021.

  1. God prefers Diesels

    God prefers Diesels Road Train Member

    1,342
    5,167
    Jun 26, 2020
    South Texas
    0
    Is that the actual name of it? And can you identify this dirty muhfuggah without a part number? It's a 2008 Benson 524a, and I'm pretty sure it's Hendrickson suspension. Anywho, it was leaking all my air out the exhaust. Wouldn't build past 90, and wouldn't release the brakes. Like any good oilfield hand, I hit it with a hammer, and it started working.

    Bonus points if you can tell me WTF the black thing is in the last two pics. Thanks. 20210303_115053.jpg 20210303_115103.jpg 20210303_115118.jpg 20210303_115126.jpg 20210303_115239.jpg 20210303_115209.jpg 20210303_115224.jpg
     
    singlescrewshaker Thanks this.
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

  3. BoxCarKidd

    BoxCarKidd Road Train Member

    3,274
    4,493
    Aug 26, 2014
    0
    I have seen those but do not recall working on one. Some things to thank about.
    1: It is connected directly to an air tank.
    2: It has a blue and red air line to the top of it.
    3: It has four other lines. Are they outlets that go to the spring side of 4 brake chambers?
    4: What is the problem with it?
    5: Guess that is a parking brake valve without more info. Easily converted to a more common valve parking or service. Many valves are replaced first because of a bad chamber.

    The black box is a tracking devise from the IRS, CIA and or FBI. Ha! I have no idea.
     
    God prefers Diesels Thanks this.
  4. little cat 500

    little cat 500 Road Train Member

    1,584
    659
    Jan 17, 2010
    Abbottstown PA
    0
  5. God prefers Diesels

    God prefers Diesels Road Train Member

    1,342
    5,167
    Jun 26, 2020
    South Texas
    0
    It was frozen. But if it's guts are anything like my old dash valve, then it could use some freshening up.

    Makes sense. I'm financing the trailer.
     
    Last edited: Mar 4, 2021
    BoxCarKidd Thanks this.
  6. Inderjit

    Inderjit Light Load Member

    202
    236
    Sep 17, 2017
    0
    Its a Sealco spring brake valve part # 110700. I was helping with some trailer
    rebuilds lately re-plumbing several trailers, new air lines, valves, air tanks
    and chambers. The same valves that were very old and corroded from being
    near the ocean. They still worked fine. I would replace it myself, not a big
    expense and easy to do at home but a pain if it fails on the road.
     
  7. God prefers Diesels

    God prefers Diesels Road Train Member

    1,342
    5,167
    Jun 26, 2020
    South Texas
    0
    Thanks!
     
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

  • Draft saved Draft deleted