The company went out of business in 2012. I doubt if there is a "repair manual" for the bike as there is for cars and trucks. Some manufacturers issue instruction or assembly manuals. Cycle Genius used name brand parts like SRAM, Microshift, Avid, and Truvative on their bikes so with the exception of parts like the seat and frame, parts should be easy to find.

Maintenance on a recumbent is pretty much like any other bike. What is your problem? Maybe somebody here can give you guidance.