Re: Questions about AIR BRAKES ???

Posted by TRC on January 12, 2006 at 05:59:41 from (68.170.186.136):

In Reply to: Re: Questions about AIR BRAKES ??? posted by john in la on January 11, 2006 at 19:52:02:

John, you're right on the money. And I've chased a couple of those trailers around when the brakes have not been set because the air leaked off or the brakes were out of adjustment.

Essentially we're talking about two separate systems that coexist on today's big rigs. One, the service brake system, uses air pressure to APPLY the brakes. The other, the parking brake system, uses air pressure to RELEASE the parking brake. Several people have gotten it right and several have gotten it at least partially wrong so far in the discussion.
Tim

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