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Author Message   Glenn Tinkerer Username: Glenn Post Number: 880 Registered: 07-2006 Rating: N/A Votes: 0 Posted on Friday, December 31, 2010 - 09:19 am:    If these ball bearings serve the same function as those in the Canon FD 1.4 type mount mechanism - ie they support the function levers that interface lens to body - then they do not like grease, the mechanism is made to run dry. Search on line for the relevant repair manual, there will be one out there somewhere.