Welcome to APUG!
In the meantime I would like to recommend so websites:
www.graflex.orgYou can also get manuals at http://www.butkus.org/chinon/ If you find the downloads useful please send in $3 each to keep this free work going.
-- the best place to start for posted information, articles and manual, and advice on Speed and Crown Graphics. It is not a real active website, but the moderators and experts get emails for each posting so that in a few hours or day you will start getting answers. No advertising or sales of equipment allowed.
-- large format in general, some graphic and graflex heavy users.
one more information source
I recommend the book GRAPHIC GRAFLEX Photography Morgan & Morgan, INC., Publishers, Hastings-on-Hudson, NY by Willard D. Morgan and Henry M. Lester. Get the 9th edition or later.
Feel free to ask questions, none of us was born with this knowledge.