Air brake doesn't work / Bad parking brake valve

Автокөліктер мен көлік құралдары

The trailer was without service brake , driver was able to release the parking brake but the service brake were not working, and all this because the parking brake valve was broken and it were not allowing the air to go to the air tank, after we replaced the parking brake valve the tank was filled with air and the service brake started to work!!!
More air brake system repair videos in the playlist on the link below:
• Semi trailer Air Brake...
Heavy duty repair videos in the playlist on the link below:
• Eaton transmission and...

Пікірлер: 58

  • @mirandarights5566
    @mirandarights55664 ай бұрын

    Thank you for the video..I watched it yesterday and when the mechanic showed up to troubleshoot I mentioned what the problem might be.... after two hours of trying various things he came to the realization that the problem was indeed the pbv....😊

  • @valeriumoscalu7580

    @valeriumoscalu7580

    4 ай бұрын

    You welcome! I am glad it was helpful!

  • @vicpetrishak7705
    @vicpetrishak77056 ай бұрын

    In situations when stuck in the boondocks , remove the cap off the air governor and loosen the screw to let the compressor pump 150 lbs . This will loosen the stuck air valve plunger . Readjust air governor , replace valve at home .

  • @anunodisooo1
    @anunodisooo13 ай бұрын

    Thank you, very good break-down on how things work, my trailer breaks wont hold to slide my tandoms.

  • @valeriumoscalu7580

    @valeriumoscalu7580

    3 ай бұрын

    You welcome!

  • @brokemillionaire1500
    @brokemillionaire15006 ай бұрын

    Now I know why my tractor parking won’t the truck thank u

  • @valeriumoscalu7580

    @valeriumoscalu7580

    6 ай бұрын

    You welcome!

  • @MrBeannnnn
    @MrBeannnnn10 ай бұрын

    Is it the same reason why the trailer release nub doesn’t want to stay in release position?

  • @haiderk3246
    @haiderk3246 Жыл бұрын

    Thanks

  • @valeriumoscalu7580

    @valeriumoscalu7580

    Жыл бұрын

    You welcome!

  • @marcelcovaci9922
    @marcelcovaci99222 жыл бұрын

    Sănătate compatrioate! Mulțumesc pt explicație și video.

  • @valeriumoscalu7580

    @valeriumoscalu7580

    2 жыл бұрын

    Cu placere! Drive safe! 🙋‍♂️

  • @cjthebossmans301
    @cjthebossmans301 Жыл бұрын

    Do you know anything about international pro star,, air is coming out off my service blue lines that hook up to the trailer,,

  • @harryl7946
    @harryl79463 жыл бұрын

    Well I see you figured out the correct way to use a crescent 🌙 wrench

  • @harryl7946

    @harryl7946

    3 жыл бұрын

    Almost. Just when I thought you got it - you go and use it backwards again.

  • @blaschalas
    @blaschalas3 жыл бұрын

    Thank you 🙏

  • @valeriumoscalu7580

    @valeriumoscalu7580

    3 жыл бұрын

    You welcome!

  • @blaschalas

    @blaschalas

    3 жыл бұрын

    Where are you located on

  • @valeriumoscalu7580

    @valeriumoscalu7580

    3 жыл бұрын

    Tacoma Washington!

  • @blaschalas

    @blaschalas

    3 жыл бұрын

    @@valeriumoscalu7580 to far I’m in chicago I was looking for a mechanic

  • @igor26170
    @igor261703 жыл бұрын

    Обьясни пожалуйста какая функция синего шланга на этом валве

  • @meharyyohanes4039
    @meharyyohanes40393 ай бұрын

    Hi thanks for the tip where are you located please

  • @dereckisaac30
    @dereckisaac303 жыл бұрын

    Got a question...2008 freightliner m2 lose air from both tanks while driving.force to pull over because the park brakes will engage...what do you think is the problem?

  • @lexacost

    @lexacost

    2 жыл бұрын

    Check the fittings at your tanks

  • @speed5996
    @speed59962 жыл бұрын

    What is a part number?

  • @truckdoctor1973
    @truckdoctor19737 ай бұрын

    Buna treaba baieti, multumim! Cat costa piesa si cat ar fi manopera la asa ceva?

  • @salvadorenosenalaska5913
    @salvadorenosenalaska59132 жыл бұрын

    My parking brake is not working, I will change this part maybe that is the problem

  • @billyblack1137

    @billyblack1137

    2 жыл бұрын

    How was it? Did that fix the issue

  • @salvadorenosenalaska5913

    @salvadorenosenalaska5913

    2 жыл бұрын

    @@billyblack1137 no, it didn't. Am looking still to find what to change.

  • @twothumbs8925

    @twothumbs8925

    2 жыл бұрын

    Did you ever find out what it was? I'm having the same problem.

  • @MrAlexrobotica
    @MrAlexrobotica2 жыл бұрын

    Норок, Так ты из Молдавии 🤣 дэй друму 🤣🤣🤣🤣

  • @valeriumoscalu7580

    @valeriumoscalu7580

    7 ай бұрын

    😂😂😂

  • @dundar198
    @dundar198 Жыл бұрын

    My trailer parking brake not working but service brake works how?

  • @blackericdenice
    @blackericdenice2 жыл бұрын

    I've been driving for 15 years and I didn't know how those valves work.

  • @keving6521
    @keving6521 Жыл бұрын

    Hey Valeriu, I have a problem on my trailer. 2016 Great Dane when I apply trailer parking break and disconnect the red glad hand, the air comes out from the trailer side. Can you help me please. I replaced the valve that you replaced it didnt fix the problem. Air still comes out when I apply trailer parking break

  • @ismailbeghi3510

    @ismailbeghi3510

    2 ай бұрын

    Did u fixed the issue my head is blowing with same issue😢

  • @kewlchickification
    @kewlchickification Жыл бұрын

    This is probably a question everyone knows but I’m wondering how a parking brake may become disengaged? If you hit the buttons and then go to work on the truck (volvo) what would cause it to roll back (not the 5 sec safety). The truck rolls after putting the brake buttons on - like 30 seconds or a minute later.

  • @ohwanz

    @ohwanz

    Жыл бұрын

    Did you get a solution?

  • @maxa2847

    @maxa2847

    Жыл бұрын

    Im having that issue basically no parking on the trl all break part are new.

  • @mauriciodiaz3566
    @mauriciodiaz3566 Жыл бұрын

    My tanks have air although I don't have brakes cant figure out what's wrong 🤷‍♂️

  • @valeriumoscalu7580

    @valeriumoscalu7580

    Жыл бұрын

    If it's cold outside the airline can be frozen!

  • @terrellscaife2411
    @terrellscaife24112 ай бұрын

    Hey buddy, I’m having an issue with a bluebird bus when I push in the parking brake. Sometimes the parking brakes won’t release or it’s a delayed release. What are your suggestions?

  • @valeriumoscalu7580

    @valeriumoscalu7580

    2 ай бұрын

    Sometimes can be delayed release when the air tank doesn't have enough air, and you need to wait for the pressure to build up!

  • @valeriumoscalu7580

    @valeriumoscalu7580

    2 ай бұрын

    Sometimes can be the parking brake valve itself!

  • @terrellscaife2411

    @terrellscaife2411

    2 ай бұрын

    Where is the parking brake valve normally located?

  • @valeriumoscalu7580

    @valeriumoscalu7580

    2 ай бұрын

    Most of the time directly on the air tank!

  • @terrellscaife2411

    @terrellscaife2411

    2 ай бұрын

    Hey thanks

  • @rshad7733
    @rshad7733 Жыл бұрын

    افتح الترجمة

  • @MrAlexrobotica
    @MrAlexrobotica2 жыл бұрын

    Я одного не понял зачем ты тред лок на фитинг намазал, там или тефлон или тефлон паста нужна а не голубой локтайд WTF

  • @justalex6134
    @justalex61342 жыл бұрын

    Сколько стоит air valve?

  • @ismailbeghi3510

    @ismailbeghi3510

    2 ай бұрын

    $70

  • @Social_Brat
    @Social_Brat Жыл бұрын

    My is the tractor not trailer. Any advice?

  • @valeriumoscalu7580

    @valeriumoscalu7580

    Жыл бұрын

    What is the problem?

  • @Social_Brat

    @Social_Brat

    Жыл бұрын

    @@valeriumoscalu7580 the tractor brake is not working. I released it but it won't stop the truck.

  • @bmbhman1

    @bmbhman1

    Жыл бұрын

    Check to see on the emergency side with park brake applied if there is air still coming out of lines To brake chambers - could be a faulty park brake valve or MV3 valve as they call it or a faulty relay quick release valve - if that is all good and your park brakes aren’t holding check for broken brake pot springs and for glazed drums

  • @valeriimoscalu8794
    @valeriimoscalu87943 жыл бұрын

    Супер

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