Bendix Brakes won't air up

[Ralph L. Fullenwider]

Al:

Was hoping that would get you in to Charolette. Am not sure how to access
the pop off valve on your unit. On the AD-2, before removing the plate for
access to the filter cartridge, you can take a large open end wrench or
pipe wrench and break loose the threads on the hexagonal end of the cap,
with that done you remove the three 7/16 inch blots that serve to keep the
plate in place, force the plate up and with a flat blade screw driver,
remove the round retaining ring then slide the plate out of the canister.
With that done, you can screw off the end of the pop off valve, then hold
the upper part of the screw shaft holding the pop off valve and un screw
the nut off the shaft. This lets you remove the pop off valve shaft. Clean
the inner housing with a clean rag, lube it liberally with grease, ( not
sure what you carry on board ) then lube the o-rings and plunger and re
install.

Again it would help to have an actual photo of your unit.

Sorry, Al, we tried, but if nothing else you know where the problem is.
Have a suggestion though. When you get to Charlotte, it might well be in
your best interest to replace the air governor ($17.00 or so part) as well.
Let us know how you fair with it. My home phone is 580-252-7694, if you
need to talk about it.

Ralph

At 10:24 PM 7/9/2006 +0000, you wrote:
> Ok we got about an hour or so heading towards Charlotte and it
>started blowing air from the bottom of the dryer again. We tried
>repeating the process you gave to us before and got a different
>result this time.
>
>Last time, we had not air comping out of the two holes that we
>disconnected the line on. This time we get hot air from the dryer
>and then it switches to the bottom again. I guess the air is hot
>because of the driving. Anyway, no it will not pump up the system.
>Should I let it cool off and retry?
>
>I also leveled the bird like it was before so we had no air in the
>system and this did not help.
>
>Now we are Gastonia, NC which is closer to Charlotte where we have a
>couple of members recommending a service center.
>
>Al, Kathy, Alfred, Daniel
>'96 BMC
>Gastonia, NC next to I85
>
>
>--- In WanderlodgeForum@yahoogroups.com, "Ralph L. Fullenwider"
> wrote:
> >
> > Hello Al:
> >
> > Not sure which air drier you have on your Coach. Try this before
>taking the
> > plate off. There should be a 1/4 inch air line going to the pop
>off valve
> > with a connection on the out side of the drier. If you have this
>air line,
> > remove the connector and allow the back pressure to bleed off,
>start the
> > Coach and see if your air starts to build up, if it does, re
>connect the
> > 1/4 inch air line and go down the road. Also if this gets you out
>of a
> > bind, the air drier needs to be serviced with a new cartridge and
>pop off
> > valve re build. The back pressure on this air line serves to tell
>the air
> > governor that your tanks are full and up to pressure.
> >
> > How about that photo? it would help. Of course, all the safety
>precautions
> > to be taken under the Coach.
> >
> > Ralph
> >
> > At 02:49 PM 7/9/2006 +0000, you 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
> > >
> > >
> > >
> >
> > Safe travels,
> >
> > Ralph and Charolette Fullenwider
> > Ralph's RV Solutions, Duncan, Oklahoma
> > http://home.swbell.net/rlf47/index.htm
> >
>
>
>
>
>
>
>
>
>Yahoo! Groups Links
>
>
>
>

Safe travels,

Ralph and Charolette Fullenwider
Ralph's RV Solutions, Duncan, Oklahoma
http://home.swbell.net/rlf47/index.htm