Wolfman I've exhausted all my sources for a manual for the 555, I thought we had one for a 903-4 which is it's big brother but I can't find it. We had one in a container handler we used to service, but no one at work seem to remember what happened to it. I talked to my friend and he seem to think that the pressure regulator was probably non-operational( stuck open). He had a fleet of trucks years ago with them in them. Sorry I can't be of more help.
<div class='quotetop'>QUOTE(Frank Hudon\";p=\"98842)</div> I appreciate your efforts. I've made mention of the regulator problem to the mechanic. I think this one though, will end up being attacked by me, once I secure a manual for it.
