[R-390] Lubrication of KC and MC Bushings (resend in plain text)

[Barry Scott]

After a little more inspection, I think the friction I was feeling was
coming from the DIAL LOCK clamp.  The fixed side of that clamp was
riding very close to the disk on which it is supposed to clamp when
locking is desired.  Also, I may have spun the lock knob just a little
bit over time and could have had it very close to engaging that disk
as well.

In any case, I moved the disk about 0.020" further away from the fixed
side of that clamp and the KC knob seems to be fine now.

Probably just operator error...  :-(

Thanks,
Barry - N4BUQ


On Fri, Oct 4, 2024 at 3:40 PM Barry Scott <72volkswagon at gmail.com> wrote:
>
> Is there an "official" method of lubricating the bushings where the KC and MC shafts extend through the spider-supports and their associated bushings?
>
> I thought there was an illustration somewhere in the manuals that shows where the lubrication points are but I cannot seem to find that now.  I was hoping that might show those bushings but I don't know that for sure.
>
> I'm asking all this because the KC shaft is starting to become a bit more difficult to turn and I'm wondering if those points might be the problem.  It isn't due to the threaded bushing that goes in the front panel because I've loosened that one to make sure it can float as needed so I'm looking at the bushing(s) in that part of the frame as a possible cause.
>
Thanks,
Barry - N4BUQ