FC Air System- info needed

[Robin]

After a long hiatus, I am fooling with the air system on my 1980 FC33.

First- I have the diagram #0988733 with diagrams. Everything is numbered rather
than labeled and I do not have the key. Anyone got a copy they could send?

Second- There is a gray air valve of some sort behind the driver's side bumper
outboard of the frame that has a bunch of hoses and one of the outlets Bottom
passenger's side) has the hose missing off it. Leaks at a pretty good clip. No
nearby homeless hose in evidence. What's this valve? Any idea where that
missing hose is supposed to go?

Third- The suspension dump valve does not seem to work as far as I can tell.
Light does not go on either. How fast is the dump supposed to happen? Any
common/easy things to check?

Fourth- The air cylinder to the generator slide is absent. There is a crimped
air hose but I do not see a bracket or anything else. Any good place to get
parts or an alternative (eg electric) arrangement? Anyone got a picture of the
factory layout? Thanks.

John Churchill
LARGE MARGE
1980 FC 33
Sanibel FL