Leica Zeiss Jena 85mm f2.0 Stiff focusing

[VINCETAN]

I just got myself a Zeiss Jena Sonnar 85mm f2.0. Optics is pretty clean. Aperture turn smoothly but the focusing is still as can be. I can unscrew the optical portion of the lens and remove this from the focusing section. I was hoping that I can dismantle and clean the part and maybe regrease it but don't have a clue where to start. Anyone here knows if there are any illustrated guide on how to dismantle the focusing section of this lens?

Greatly appreciate any help

Regards
Vince

 

[Brian]

It should be very close to the contax mount Jupiter-9:

http://www3.telus.net/public/rpnchbck/Jupiter-9 dismantle.html

 

[VINCETAN]

Brian, thanks. that was very informative and very detailed.

Regards
Vince