Kevin
I have a sheet of drawing that you could have, and I will speek to 'wolfie' my boss, but I sure the down lock on the mains is hydraulic via the big drag strut. The actual retraction jack is at the back of the leg. Hydraulically it's one of the simpler aircraft I've worked on, well laid out and easy to understand.
Send me an e-mail at [email protected] and I'll be able to go into more depth.

Dave