Rolleiflex 3.5 e Stiff Focusing

[topaz]

I have a lot of fun in the evenings after work, working on my Rolleiflex.(s) My 3.5 E has a usable, but stiff focus action. I am wondering if any one here on the forum may have encountered this, and been able to free the racking action some w/o full disassembly. Years ago I completely dis assembled one, and remember the grease on focus levers. Is it worth perhaps, removing the knob(with meter), and checking there? I thank you all for invaluable advice provided in the past.

 

[Film dino]

A Rolleiflex service manual is available for download here-
http://www.kyphoto.com/classics/repairmanuals.html
It's a large >60MB pdf file