Problems with air dumping

[Bob Lawrence]

Hi Glenn,
Sorry, on the bill, no part no. was put, but if you call Pat at 5th
Wheel Truck Repair 509-248-3070 I'm sure he can tell you.
He just said this was a regular air dump switch used on all current
trucks.
Bob Lawrence
84 PT36
Tacoma, Wa.

> Bob,
>
> Can you provide the part number of the valve(s) you used to replace
> the orginal equipment? I also have a randomly sticking dump valve.
>
> Thanks,
>
> Glenn Allen
> 1986 PT-40
> Marietta, GA
>
>
> --- In WanderlodgeForum@yahoogroups.com, "Bob Lawrence"
> wrote:
> >
> > First want to thank Steve and Ralph who send me files of the
> various
> > air systems....thanks again, guys..will print them off for others
> we
> > meet on our travels that might have similar problems.
> >
> > I found the solution to my problem.
> > Turns out the air switches are/were the problem. Pulled them out
> and
> > found that these valves have many mini o rings. Seems they fall
> apart
> > with age and the small pieces jam the air holes.
> > Replaced them with new and bigger air switches...problem solved.
> > Bus now dumps quicker and fills quicker as went to 1/4 in size
> > openings.
> >
> > Thanks again to Steve and Ralph.
> >
> > I know several have mentioned they have this occasional problem
and
> I
> > think this is the reason.
> >
> > Bob Lawrence
> > 84 PT36
> > Tacoma, Wa.
> >
> > > Just an update here in Yakima, Washington.
> > > I have had problems dumping the tag and main suspension dump
> valves.
> > > Others on this site have had this problem and nobody has a
> solution
> > yet.
> > >
> > > Emailed Ralph and he had me look behind the front frame rail
> > straight
> > > up. There is a manifold there with lines going to the various
air
> > bags
> > > and, I'm assuming, the suspension dump buzzer switch.
> > >
> > > My problem is, no air is getting up to the switches to tell the
> > bags to dump.
> > >
> > > At present I am here in Yakima at a place (5th Wheel Truck)
that
> > has
> > > worked on other birds. They tried to get an air schmatic faxed
> from
> > > Bluebird to give them some direction...people don't get back to
> > them.
> > >
> > > Bob Lawrence
> > > 84 PT36
> > > Tacoma, Wa.
> >
>