Ridewell down in the front.

[pattypape]

Wow,

I typed, bendix DC-4 valve , into google and found more Bendix
air system info. than anyone would ever care to know, Lots of bedtime
reading..zzzzzzzzzzzzzzzz This could create a Forum Air System
Expert.

http://www.mybendix.com/AirbrakeHandbook.jsp

Bill 88 FC Michigan





--- In WanderlodgeForum@yahoogroups.com, "Harold Prescott"
wrote:
>
> I had a problem simular this. I had to replace the Bendix DC4
> valve. This valve is located on the drivers side inside frame rail
> just above the back-front air bag. It's inline with the air-
> compressor, located before the first air tank. The exhaust runs
> under the dc4 valve and over the front airbags.
> I had a leak in the flex pipe that caused extreme heat into the
area,
> destroying the *O* ring in the DC-4 valve. (also destroyed an air-
bag)
> This is a b*t*h to get to.
> With this valve malfuntioning, the front of the coach would'nt rise
> to the occasion. However the brakes aired up as did the rear air-
> bags.
>
> Hope this is of some help.
>
> Harold Prescott
> '85 FC35
> Norhtern California
>
> --- In WanderlodgeForum@yahoogroups.com, "bluebird3208"
> wrote:
> >
> > I have had a long standing problem of the front air bags
deflating
> > soon after the bus is parked. The bags will not hold overnight
and
> > sometimes that is all I need before leaving the next day. The
> jacks
> > work great but it is just one more thing to do. I have been all
> over
> > the bus. I have bubbled and sniffed (ultrasonic leak detector)
every
> > air leak I could find, and I am talking a detail inspection. The
> two
> > dry tanks will hold air for 2 weeks but the wet bleeds off way to
> > soon.
> >
> > Here is proof that even I get lucky sometimes. I have been
working
> > on the genset quite a bit lately and I just hook up an air line
> from
> > the workshop to the schrader on the wet tank and keep it full to
> > operate the gen air ram. I was in a hurry today to go to lunch
> with
> > my wife and tried to whip the air hose of the shrader valve and
> > snapped it off the air tank fill. All the air in the wet tank
> > dumped rapidly as I left for lunch. When I got back the front of
> the
> > bus is still at ride height. The only thing that makes sense to
me
> > is that I am some how getting pressure to the front dump valve
when
> > there is available air pressure in the wet tank causing the front
> > bags to deflate.
> >
> > Anyone got an idea?
> >
> > Jim
> > 83 FCRB
> > Yorba Linda, ca
> >
>