Also why I am at it. In the book CP-6 Series Maintenance Manul ( Fuji Part # MNT-C060-11.3E ) in Chapter 4 page 4-1-11 it says " The clutches should therfore be cleaned regularly, using the grease cleaner (ThreeBond 2706) provided with the machine." It also goes on to say "Pull the outer shaft of the nozzle rotation axis downward, then wipe the tapered clutch clean using a cloth which has been wetted with grease cleaner."
So since you don't recommend spraying anything on them how do you explain Fuji's own documentation. Sometime real life experience is a much better trainer than some of the techs that have worked at Fuji. I hope your training doesn't include much more info like you just passed along.
(http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=40762)