Mike Noel wrote:
: The fellow who did my annual asked me to order a jack screw because he can
: see a little wiggle between the screw and the cable drum. He wasn't sure
: which part was worn, but suggested we start by replacing the screw and then
: also replace the drum if the problem persists.

: I would like to survey the experiece of the group before ordering the jack
: screw. Is the screw more likely to wear than the cable drum, or do they
: both tend to add equally to a loose fit?

Be very sure that the 'wiggle' is between the jack screw & trim drum. It's
usually between the trim drum and the supporting plates because the bushings
in the supporting plates are worn.

PS, when mine wore out after 5700 hours it was the trim drum. The new trim
drums don't look like the old trim drums, but they work the same. Oh, and
some mechanics don't seem to be able to follow the procedure for properly
winding the trim drum. Check the trim from full nose-up to full nose-down
after it's replaced. My guy wound one too few turns on the drum, and the
cable came off and jammed the trim full nose down (during my post-
maintenance checks).

--
Aaron Coolidge (N9376J)