Yeah, but is senses the pressure difference by virtue of a normally-centered
"piston" in the PDWA bore being able to move off-center to whichever side has
the
leak (and consequently, less "pressure"...) I was of the impression that in
doing so it also effectively blocked off the intake and exit port for that
"side"
eliminating the possibility of pumping *all* of your fluid out.
I have an old one I'm going to have to pull apart and look at...
JS
Sam Gentry wrote:
> The rear and front are isolated by separate reservoirs, pistons, and lines.
> The DPWA ONLY senses the pressure in the two systems and turns on the
> light if it is not close to the same.
>
> Sam
>
> At 02:37 PM 5/14/1999 -0400, Donald H. Locker wrote:
> >
> >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.
|