Bendix Brakes won't air up

[mbulriss]

Al,

Sounds like the spitter valve is stuck open. May have a piece of
foreign material stuck in it? Which Bendix model is it? AD-9 maybe?
Let me try to get Ralph on the line also. Go ahead and post the
picture and a numer you can be reached at in case I can rustle up Ralph.

Mike Bulriss
1991 WB40 "Texas Minivan"
San Antonio, TX




--- In WanderlodgeForum@yahoogroups.com, "Al" wrote:
>
> Mike,
> I can hear and feel air coming out of the bottom of the air
> dryer. I see a piece that I can take off that has three bolts on it
> and also has electrical lead to it. So I am going to take it off
> and see if I can see something that might have been stuck. What do
> you think? I can put a picture of the unit on the site if that
> helps. It says Pure Air Plus and the filter on the top says Haldex
> and so does the piece on the bottom.
>
> Al, Kathy, Alfred, Daniel Johnson
> '96 BMC
> Bear Den
> Spuce Hill, NC
>
> --- In WanderlodgeForum@yahoogroups.com, "mbulriss" <mbulriss@>
> wrote:
> >
> > Al,
> >
> > The 6 ton jack stands are a good thing to have. Do you also have
> the
> > 20 ton hydraulic jack that used to come with the Birds?
> >
> > In any event, be careful. I am assuming the Bendix air dryer was
> > serviced at the time the brakes were worked on. Not sure which
> Bendix
> > you have, but look for any obvious loose fittings on the Bendix
> dryer.
> > If you start the engine and crawl under, it should be obvious
> where
> > the air hiss is coming from. I had the AD-2 dryer and spitter
> valve
> > serviced on my 83 PT40 and on the very next trip lost all air
> pressure
> > after about 50 miles of travel. The over-pressure pop-off valve on
> > the side of the dryer had aparently gotten cleaning fluid on the
> > threads which apparently allowed it to vibrate loose and fall
> off.
> > It had not been touched during the dryer service. Hopefully you
> just
> > have vibrated a fitting loose on the air dryer.
> >
> > Good luck,
> > Mike Bulriss
> > 1991 WB40 "Texas Minivan"
> > San Antonio, TX
> >
> > --- In WanderlodgeForum@yahoogroups.com, "Al" wrote:
> > >
> > > I have a pair of 6 ton jack stands. Do you think that will hold
> the
> > > front end up just in case while I am under it?
> > >
> > > Al, Kathy, Alfred, Daniel
> > > "96 BMC
> > > Bear Den
> > > Spruce Hill, NC
> > >
> > > --- In WanderlodgeForum@yahoogroups.com, "Scott"
> > > wrote:
> > > >
> > > > Al, I guess you could be stuck in worse places. Spruce Pine is
> a
> > > great
> > > > area. None the less, There are a couple of big truck shops
> west of
> > > > Ashville that can help you out in an emergency BUT I will tell
> you
> > > I
> > > > had work done by the GMC place in Oct and was pretty
> disapointed.
> > > I had
> > > > a leveling valve replaced. Coach still leaned and well now
> that I
> > > > replaced all the valves I find out the "new" valve they
> replaced
> > > was
> > > > painted (makes me think it was used) But I got home. There is
> a
> > > forum
> > > > member that is from that area I will email him, he is
> travelling
> > > but I
> > > > am sure he will pop in.
> > > >
> > > > IF you can make it to Charlotte NC there is a great shop there
> > > that
> > > > will definately treat you right. Carroll's Aligning (South
> Tryon
> > > St-
> > > > 704-376-4471) They have been in business 60 yrs and the shop
> Mgr
> > > has
> > > > been there 32 yrs..great guys. Ask for Tommy Carrol, use my
> name.
> > > >
> > > > Best of luck
> > > >
> > > > ScottB
> > > > 86FC35
> > > > SC
> > > >
> > > > --- In WanderlodgeForum@yahoogroups.com, "Al" wrote:
> > > > >
> > > > > We just had the brakes serviced by McDonald Coachworks and
> > > everything
> > > > > seemed ok. Now are are in our 2nd week of vacation and we
> shut
> > > down
> > > > > like normal and jacked the bird up. Been here for 3 days
> and
> > > now we
> > > > > are ready to head to Charlotte, NC and the brakes will not
> air
> > > up. I
> > > > > hear a hissing sound at the Bendix valve. Looking thru my
> > > manual now
> > > > > as to what to do to get the valve to close so we can air up
> our
> > > brake
> > > > > system. I have searched the site and dont see anything that
> > > would
> > > > > lead me as to what to do next. I have tried turning off the
> > > engine
> > > > > and letting sit and restart with no result so far.
> > > > >
> > > > > Thanks for anyone that responds.
> > > > > Al, Kathy Alfred, Daniel Johnson
> > > > > Bear Den Campground Spruce Pine, NC
> > > > > '96 BMC
> > > > >
> > > >
> > >
> >
>