Machines | Lessons in School Bus Air brakes

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1. 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
2. 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 .
3. thank you
4. si estaria en español estaria a toda madre
5. nice!
6. Thank You.
7. I love the air brake release sound of the bus on this video!
8. 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.
9. LOL "fireweed dr."
10. 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?
11. 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.
12. Thanks
13. thanks i like air sound of brakes i like the bar noises it liks a girl in bed lol
14. Thank you.
15. 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.
16. I just had curiousity on how trucks brake, I've been playing Euro Truck 2 :D
17. Thanks every trucking company should play this video for new drivers .
18. Great source of information, LOVE IT!!!!
19. Great video thanks
20. EXCELLENT demo!!