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Old 06-09-2010, 07:28 PM   #11
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Re: Air Brake Questions

Sorry CC, I was trying to help with four hours of sleep just before beginning classes this mo(u)rning (sometimes I spell morning with the "u" when I'd rather be asleep).
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Old 06-09-2010, 08:18 PM   #12
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Re: Air Brake Questions

Quote:
Originally Posted by M1031
Sorry CC, I was trying to help with four hours of sleep just before beginning classes this mo(u)rning (sometimes I spell morning with the "u" when I'd rather be asleep).

No need to apologize. I am baffled that people take safety so lightly. Whether that happens to be air brakes or towing a bus with a F150 and some half-wit daydreaming behind the wheel of the bus. Someone asked about air brakes and I post a link to a commercial driver handbook. I guess my mistake was adding my $0.02 that one should understand the system or one might not have brakes.

Maybe someone should ask Smitty if he would like to be on the receiving end of a 20k pound school bus without proper functioning brakes. How about some reckless fool towing a bus knowing what he is doing is illegal and putting other peoples lives in danger.
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Old 06-09-2010, 11:32 PM   #13
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Re: Air Brake Questions

It wasn't my intention.


Here you go.

http://www.skoolie.net/forum/viewtopic.php?f=36&t=4951
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Old 06-10-2010, 01:36 PM   #14
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Re: Air Brake Questions

Sorry, I guess I was having a crappy day.
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Old 07-11-2010, 04:18 PM   #15
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Re: Air Brake Questions

On topic but slightly not OP ... How expensive are air brakes to fix? What is the big deal with them--why them over hydraulics? Seems like so many things can go wrong while driving with this complex system.
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Old 07-11-2010, 09:13 PM   #16
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Re: Air Brake Questions

You've got an air compressor, when it starts to go you'll get oil pumped into the wet tank. Drain tanks. Water can freeze in the system when cold. Drain tanks, install dryer, or know how to add alcahol (there is a little tank on those systems). And know how to adust your slack adjusters (unless of the automatic style). If the slacks are beyond thier throw the air diaprams can't apply full force to the brake shoes=no stop! Search Bendix air brakes, it's all there.
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Old 10-11-2010, 10:57 PM   #17
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Re: Air Brake Questions

The reason that almost all commercial trucks use air brakes is because the brake system can be easily connected to a trailer and thus operate the trailer brakes with the same system. Connecting a hydraulic brake system to a trailer is impossible to do if you want to be able to quickly disconnect and reconnect the supply lines. When connecting air lines to the trailer you are allowed to leak a little (or a lot) of air and it will simply build up again when the on-board air compressor refills the air tanks. Trucks (like buses) that don't usually pull a trailer do not need this capability, so they can use air brakes or hydraulic brakes. As was mentioned before, hydraulic brakes don't have the tendency to freeze in cold climates, so that's a benefit for drivers in high latitudes. Air brakes have the benefit of fail-safe springs, although I doubt you'd want to trust your life to that system by neglecting proper preventive maintenance.

I'm no expert, and I may be way off. This is just stuff I've read online. Since I found it on the internet, I assume it's all true.
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