Re: Questions about AIR BRAKES ???

Posted by john in la on January 11, 2006 at 19:52:02 from (65.6.106.168):

In Reply to: Re: Questions about AIR BRAKES ??? posted by John (C-IL) on January 11, 2006 at 19:42:39:

Now you are trying to bring the parking brake system into the discussion and complicate it.

The spring pressure is only used on the park brake system. In fact look under any truck and you will see most times only one axle has the double can spring system.

Air is still used to apply the brakes in the other side of the two can system.

The reason for using the newer spring system is because in the old system air was used to apply the parking brakes. When this air leaked off the brakes would release allowing the unit to roll.

Nothing like chasing a trailer around the yard trying to get it hooked up because the air had leaked off and the brakes had released.

Replies:

• Re: Questions about AIR BRAKES ??? TRC 05:59:41 01/12/06 (0)

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