Colorado's Jefferson County Public Schools teaches about air brakes for school buses.

Comments

    • Leo Wakefield
      Leo Wakefield

      Question
      I think You can check the front break adjustment manually by pulling on the push rod. While the buses wheels are chocked and the pressure is released or the front air break is empty.
      Can I manually check the rear air breaks? If so how?
      Does the emergency break need to be engaged to test the rear air breaks? Or do they need to be released?
      Seems like the procedure is opposite to testing the front air bteaks.

      about 4 days ago
    • CoreyAmy Edmonds
      CoreyAmy Edmonds

      Fix yo brakes

      about 3 months ago
    • 69adrummer
      69adrummer

      That animation on the spring brakes is way backwards!!

      The air pushes BACK the spring allowing the brakes to release and it is ....wait for it....the SPRING that returns the rod to the "applied" position should air pressure be lost. damn, way backwards lol

      about 4 months ago
    • Chandulal Nandiya
      Chandulal Nandiya

      I want the answer of how compressed air in the bus goes our from bus

      about 7 months ago
    • cherished memories ( old songs)
      cherished memories ( old songs)

      Presentation is awesome.!!!!!!!!

      about 9 months ago
    • Rubén Luis Vilchez Ayme
      Rubén Luis Vilchez Ayme

      no entendí mucho

      about 1 year ago
    • Flip'N Autistic
      Flip'N Autistic

      Holy shit! Wtf happened to the education system in this video? Deleted this pile of crap!

      about 1 year ago
    • SubtleKnowledge
      SubtleKnowledge

      Thanks, great info nicely presented ; - )

      about 2 years ago
    • Cbmech
      Cbmech

      old man
      The spring brakes do not use air to apply only to release , the front chamber of the piggyback is what does the application . On a tractor the 3rd axle often doesn't have a piggyback , only the apply chamber , it looks like a larger version of the front can

      about 2 years ago
    • Javier Andrade Saldaña
      Javier Andrade Saldaña In reply to Cbmech

      The Tool Guy .nj

      about 2 years ago
    • The Tool Guy
      The Tool Guy In reply to Cbmech

      Yeah no they use air to release and apply the breaker ,,the spring is a glorified parking brake that was originally introduced for emergencies

      about 2 years ago
    • Cbmech
      Cbmech In reply to Cbmech

      Ok?

      about 2 years ago
    • GriffinVB
      GriffinVB In reply to Cbmech

      Cbmech zasddffghjjklwertylkj

      about 2 years ago
    • Cbmech
      Cbmech

      On the 30/30 piggyback the back spring side of the can takes about 60psi to release , and 60psi equivalent is all the apply braking you get when you have an emergency air loss .
      The sr1 or sr7 inversion valve modulates spring air pressure to give you a partial controlled brake application when you loose primary air .

      about 2 years ago
    • The Tool Guy
      The Tool Guy In reply to Cbmech

      +Cbmech by physically removing the cage bolt from its storage slot on the chamber dumbass

      about 2 years ago
    • Cbmech
      Cbmech In reply to Cbmech

      Or install a cage bolt in each piggyback

      about 2 years ago
    • The Tool Guy
      The Tool Guy In reply to Cbmech

      When you lose air and tank pressure drops below 60 pounds the spring brakes will apply fully and they will not come off until air is reapplied of you physically remove pieces

      about 2 years ago
    • OnFire4Freedom
      OnFire4Freedom

      thank you

      about 2 years ago
    • Lucio Ramirez Perez
      Lucio Ramirez Perez

      si estaria en español estaria a toda madre

      about 3 years ago
    • Manish Singh
      Manish Singh

      Thank You.

      about 3 years ago
    • matthew valdez
      matthew valdez In reply to Manish Singh

      ri1ch guys dubai

      about 3 years ago
    • Ben Sommer
      Ben Sommer

      I love the air brake release sound of the bus on this video!

      about 3 years ago
    • DEN T
      DEN T In reply to Ben Sommer

      +Ben Sommer You can also download the "New Air Brake Release Sound Mix 2016" in the iTunes store for only $1.99 US. :-)

      about 3 years ago
    • Ben Sommer
      Ben Sommer In reply to Ben Sommer

      +Ben Sommer If you want to hear it, go to 7:47 in the video!

      about 3 years ago
    • MapleBalls
      MapleBalls

      There are many errors in this video. Both Terminology and animation on the system are way off. Emergency Brake? No such thing. If anyone is going for their license, study your Provincial / State manuals, not this... you will fail.

      about 3 years ago
    • Mila M
      Mila M In reply to MapleBalls

      Lewis Johnson, Thank you for explanation. I APPRECIATE IT.

      about 11 months ago
    • Lewis Johnson
      Lewis Johnson In reply to MapleBalls

      MapleBalls In the US we commonly call a Parking Brake an Emergency Brake, so it is not incorrect to call it that no matter what vehicle you’re in.

      about 1 year ago
    • The Tool Guy
      The Tool Guy In reply to MapleBalls

      Actually yes there is when your air tanks drop below 60 pounds your spring brakes will apply fully all modern vehicles and especially buses are required to have a certain amount of spring brakes on a vehicle

      about 2 years ago
    • The Tool Guy
      The Tool Guy In reply to MapleBalls

      Emergency brakes is very much such a thing!! they automatically apply the brakes in an emergency!!! how much more of an emergency brake do you need

      about 2 years ago
    • JerJerBynx
      JerJerBynx

      LOL "fireweed dr."

      about 3 years ago
    • Henry Chuong
      Henry Chuong

      he said the rear provides more braking power than the front (3:52)..but isn't most of the breaking power of any vehicle in the front?

      about 3 years ago
    • Steve Walther
      Steve Walther In reply to Henry Chuong

      Trucks carry heavy loads on the rear tires...

      about 6 months ago
    • Nathan Hughes
      Nathan Hughes In reply to Henry Chuong

      Henry Chuong on a passenger vehicle or a hydraulic breaking system then yes the front does most of the breaking but on a commercial vehicle that is a air break system then the rear does around 70-80% of the work,you should normal have to replace the rear pads twice to the front 1 or 2 to 1 ratio

      about 1 year ago
    • The Tool Guy
      The Tool Guy In reply to Henry Chuong

      On most small Vehicles yes but on most small Vehicles there's more weight in the front on the buses, straight trucks, and larger Vehicles the rear brakes have more power to them because they have far much more weight so if you would try to apply more brake power to the single front wheel with not near as much weight as the dual tires on the rear that's carrying most of the vehicles weight the front tire would definitely skid causing a loss of control

      about 2 years ago
    • Old Man
      Old Man In reply to Henry Chuong

      Spring breaks have FAR more pressure applied bud, they are 2 different things. Comparing sizes in diameter, clearance and pressure is how you should look @ it. My truck releases @ 70psi and even @ the max legal 135psi, the front won't be the same strength as the back @ 0psi.

      about 2 years ago
    • Cbmech
      Cbmech In reply to Henry Chuong

      Look up sr1 valves on YouTube

      about 2 years ago
    • crazyfvck
      crazyfvck

      Very interesting video. Thanks for uploading it. I had no idea that air brake equipped vehicles have 80 percent of their braking power in the rear, which is the opposite of regular cars and trucks. I guess that makes sense though, given the increased number of tires (and axles, depending on the vehicle) back there. You could definitely see the size difference when he compared the front brake chambers to the previously shown rear chambers.

      about 3 years ago
    • The Tool Guy
      The Tool Guy In reply to crazyfvck

      maple I hope to god that you never work on air brakes you're the kinda dumb ass I always had to go in and clean up after!!!!

      about 2 years ago
    • The Tool Guy
      The Tool Guy In reply to crazyfvck

      There actually is a such thing as emergency brakes in an emergency such as a failure in the service lines or failure in the air system in general any one of which would constitute an emergency there is a way to apply a mechanical brake

      about 2 years ago
    • MapleBalls
      MapleBalls In reply to crazyfvck

      +crazyfvck The reason is because Service Brakes ( front ) and Spring Brakes ( rear ) are 2 different systems that back up one another. If The System gets a leak and all air drains, the rear brakes apply while the front brakes become useless, just as if the rear brakes lines don't allow the air to drain, you have full front breaks . you would want the rear brakes to suddenly lock up instead of the front so you can still manouver if there ever was an emergency, although, there is no such thing as " Emergency Brakes " Its called a Parking Break or " Maxies " it says it right on the knob the guy pulls. This video is full of errors.

      about 3 years ago
    • mark warlick
      mark warlick

      Thanks

      about 3 years ago
    • eten drinken vuur
      eten drinken vuur

      thanks i like air sound of brakes i like the bar noises it liks a girl in bed lol

      about 4 years ago
    • Sanz L
      Sanz L

      Thank you.

      about 4 years ago
    • Dawn Thompson
      Dawn Thompson

      I like your video but giving bus drivers a false sense of security when you say the parking brake will pop out and stop the bus. You have to loose air from both tanks at the same time to make this happen. A duel air brake system with evenly disperse the air if the opposite tank has lost air. Other than that, I love your video very informative.

      about 4 years ago
    • Cbmech
      Cbmech In reply to Dawn Thompson

      jfsa380 if you have enough weight on the truck at speeds over 5mph it probably won't lock the brakes . remember you're only getting an equivalent brake application of about 60 psi not the 120 psi of a full brake application .

      about 2 years ago
    • jfsa380
      jfsa380 In reply to Dawn Thompson

      +Dawn Thompson not to mention, if the spring brakes automatically apply, and you are going more than 5kph, the vehicle will stop...really quickly...and it will hurt...i had the springs come on in the yard at only 5 kph, and it hurt...any faster and it may break something.

      about 3 years ago
    • Mitch S
      Mitch S In reply to Dawn Thompson

      I never said the spring applies the brakes I said air enters the spring compresses which applies the brakes aka the spring holds back the brakes and air pressure applies them. now that I read it yes it is confusing so I apologize but that's what I meant to say 

      about 3 years ago
    • MapleBalls
      MapleBalls In reply to Dawn Thompson

      +Mitch S The spring does not apply perssure in Service brakes. The membrane fills with air & the pressure applies the brakes. Only Spring Brakes are applied with presure from the springs, hence the name.

      about 3 years ago
    • Mitch S
      Mitch S In reply to Dawn Thompson

      no as soon as you lose pressure your brakes do apply. rear brake chamber has air flowing all the time that's the parking brake/emergency brake as soon as that loses air spring decompresses which pulls the slack adjuster, rotates the S-Cam and applies the brakes. service brakes are the exact opposite when air is applied spring compresses pushing the slack adjuster which rotates the S-Cam and applies the brakes. 

      about 4 years ago
    • Roderick
      Roderick

      I just had curiousity on how trucks brake, I've been playing Euro Truck 2 :D

      about 4 years ago
    • bad
      bad In reply to Roderick

      +Roderick same xD

      about 4 years ago
    • Mitch S
      Mitch S In reply to Roderick

      same system as a bus. only difference is you have glad hands that connect to the trailer. one is an emergency (red) line the other is a service (blue) line once you disengage the parking brakes air flows through the red line to the rear chamber to disengage the spring which rotates the s-cam and releases the brakes and when the service brakes are applied air flows through the service line to the chamber where the spring is compressed, slack adjuster is pushed forward and the s-cam is rotated to apply the brakes

      about 4 years ago
    • nisw1918
      nisw1918

      Thanks every trucking company should play this video for new drivers .

      about 4 years ago
    • ThePoreproductions
      ThePoreproductions In reply to nisw1918

      +nisw1918 and school districts.

      about 3 years ago
    • Mitch S
      Mitch S In reply to nisw1918

      driver's should learn this in CDL training for their pre-trip. if they don't then that place isn't teaching people right

      about 4 years ago
    • nisw1918
      nisw1918 In reply to nisw1918

      And long time drivers like me I learned plenty about brakes I didn't know after 800 k miles driven .

      about 4 years ago
    • Edilia Padilla
      Edilia Padilla

      Great source of information, LOVE IT!!!!

      about 5 years ago
    • hendrick251989
      hendrick251989

      Great video thanks

      about 5 years ago
    • DieselDucy
      DieselDucy

      EXCELLENT demo!!

      about 5 years ago
    • danise gonzales
      danise gonzales

      Thank you for having this video on air brakes its a good pastime .:)

      about 5 years ago
    • sitam patidar
      sitam patidar

      Thanks for update this vedio it's easily understood

      about 5 years ago
    • Drive On Guard
      Drive On Guard

      Nutguy95, you are wrong, people need to stop providing incorrect information to people when they think they know. On buses 80% is in the rear.

      about 5 years ago