I/C valves FC530

[Freediver]

Does anybody know where I can find a detailed breakdown or a step by step disassembly of the Zodiac I/C valves? I have the field manual with the parts, I am just concerned as I would like to grease them. I read somewhere that if not done properly a pin or part of the valve can actually fall inside the tube. If so which part is this? Also, can tools be made or do I really need to purchase them from zodiac.
Thanks you
Freediver

[Solarguy]

Deflate your boat and then turn all of the valves in the navigation at 6 o clock
I think it is a 8 or 10 mm. It just a nut and a spring. Count how many turns to remove the nut. Lube valves and replace putting the nuts back on the same number of turns.