Update On Air System Issues

[Richard Gideon]

Curt: I found a leak on the Pressure Protection Valve

http://www.ryderfleetproducts.com/cgi-
bin/ryderfp/products/srm/oid/48389/erm/product_detail.jsp

on top of my wet tank...Bill Pape told me to check the 4 cap screws
on the valve and shure enough after tightening the 4 bolts the
leakdown rate is greatly reduced. My air throttle still works
immediately after 24 hrs but chasing leaks is still an ongoing ordeal.

Dick Gideon
1989 35FC
Rolla, MO

--- In WanderlodgeForum@yahoogroups.com, "Curt Sprenger"
wrote:
>
> Progress since last post regarding air system issues.
>
> Air pressure was bleeding off at the rate of 60 pounds in 5 minutes
> (120 to 60). When I bought the coach 3-1/2 years ago it was leaking
60
> pounds in 20 minutes. I monitor this by the holding tank dump
station
> pressure gauge. Also, the drive/tag suspension would go down in 24
> hours. My son has great hearing. He found a couple more air leaks,
> namely two of the three Pilot Control Valves on the drive and tag
> axles. The curb side drive and the tag were leaking. All three
valves
> were replaced. Several more leaks were found and resolved by
> tightening up line fittings. The leaking was now 40 pounds in 17
> minutes, much better, but not to the point I was happy. And the
> drive/tag would still go down in 24 hours.
>
> Next was to determine which part of the system is leaking. Blocking
> off the dump valves and airing up the suspension, the suspension
would
> still go down in 24 hours. So it's either the air springs or the
hard
> lines. The air springs were new three years ago. Decided to replace
> the hard lines to the bags with plastic lines. The result is the
> suspension stands for days, and the air leak(s) is now at 50 pounds
in
> 5 hours.
>
> I'll stop working this project for now. May need to revisit over
time
> as I'm sure more hard lines will rub together creating more leaks. A
> pit sure would be nice.. .I would change out the hard lines for the
> plastic.
>