Servicing An Inficon Vortex Recovery Unit

I really hope I can fix this thing. I just bought an Inficon Vortex 708-202-Gr recovery unit off of eBay. The seller said that the motor works but it will not pull a vacuum. But for $108 I though id give this $700 unit a shot. Can any of you guys tell me what to expect? Id really like to know how hard these things are to disassemble and reassemble. Or if anybody knows a link to an exploded view drawing? I'm wondering if the price of parts are reasonable as well. I’m just a little shaky about it :rolleyes:
Thanks

Had to chuckle, did a Google and it came back with four ebay entries, that was all!!

Anyway, found this, which isn't a lot I'm afraid but perhaps the manufacturer can give you some details direct.
http://www.inficon.com/download/en/V...0sellsheet.pdf

Must admit though, with most of these machines it's a case of unscrewing the thing to see what's inside.