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Re: That PDWA thingy

To: dchilds@epri.com
Subject: Re: That PDWA thingy
From: "Donald H. Locker" <dhl@mrdog.msl.com>
Date: Fri, 14 May 1999 14:37:32 -0400
It could be removed, but I would consider it very unwise.  It isolates
the rear and front brake systems, so that a loss of braking in one
section does not affect the other.  Any small problem is isolated and
does not cause complete braking failure.  On some later systems, the
isolation is diagonally (i.e. right front and left rear brakes operate
as a pair, left front and right rear as a pair.) because the front
brakes do so much more of the work.  The diagonal split allows more
braking power to be available if a leak develops.

The PDWA (pressure differential warning actuator) also actuates the
pressure differential warning indicator (the little light) to tell you
you have a sufficient leak in half of your brake system that it is not
braking.

> This question may show my ignorance.... Oh well.
> 
> Is there any reason why that break pressure warning switch could not be
> removed, provided you could find a way to connect the lines back together.
> Has any one done this?  It would be nice clean up that area a little.

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