[R-390] Lubrication of KC and MC Bushings

[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
>