[R-390] Lubrication of KC and MC Bushings

Ing. Giovanni Becattini giovanni.becattini at icloud.com
Sat Oct 5 01:43:33 EDT 2024


I had a similar problem and finally I discovered that one of the twinned gears had the two plates stuck each other. I could not find a better solutions than slightly separating them with a blade and putting a little quantity of WD40 between.

> Il giorno 5 ott 2024, alle ore 04:12, Barry Scott <72volkswagon at gmail.com> ha scritto:
> 
> I found that lubrication figure.  It is Figure 89 on page 114 of the TM
> 11-856 manual.  It does not mention lubricating the KC or MC shafts so now
> I'm not sure if I should.  I wouldn't think a few small drops of synthetic
> oil would hurt there.
> 
> 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
>> 
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