Bendix Brakes won't air up

[Ralph L. Fullenwider]

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