[R-390] R-390 (Non-A) RF Gears Cleaning

[robert meadows]

 I would not use WD40 on anything of value.
WD-- water displacing formula 40.  
Cleaning such I find is quite well accomplished with Brake Cleaner by various manufacturers:  I purchase the lowest price at my pal's NAPA store.
I like Starrett instrument oil as well as KROIL Microil'
Chers AllRobert
    On Wednesday, February 11, 2026 at 01:01:30 PM EST, Alex Hopper <ahopper0216 at gmail.com> wrote:  
 
 Hi All,

I have done quite a bit of reading on the best ways to clean the RF deck
gear train on the R-390.  Seems that most people recommend a thorough flush
of WD-40.

Does anyone have personal experience with this?  I am tempted to try it,
however I am NOT interested in removing my RF Module.  Is this something I
can carefully do with the RF module still intact?  I would use a long
'staw' aimed down carefully into the gears.

-Alex
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