[R-390] Reverse Migratory Habits of RF Decks

[Bill Smith]

Great story, Joe!  Congrats, and wish I had the time/courage to disassemble
the gears in the rig here.  I know it's needed.  I cleaned similar grease
from the outside surfaces, and have tried to flush varnish from pivots and
split gears with Marvelous Mystery Oil, but really know better.  Mr. Crud is
still residing in there.

Look forward to more reports.  Is yours an "A" or "non-A"?  ("non-A" here).

73 de Bill, AB6MT
billsmith@ispwest.com

----- Original Message -----
From: "Joe Foley" <redmenaced@yahoo.com>
To: <R-390@mailman.qth.net>
Sent: Monday, January 21, 2002 8:59 PM
Subject: [R-390] Reverse Migratory Habits of RF Decks


> Yes,
>
> One flew through the door Friday here in the Great
> White North, NY, that is.  It had a tag on it saying
> it was from one of the Barrys in Alabama, thanks,
> Barry!
>
> Anyway, it was a typical mess, someone had greased it
> long, long ago,....... probably not Barry.  The grease
> had turned to glue, the ten turn stops were all stuck
> together, the split gears were stuck together, the
> clutch was in pieces in a bag, two corners were bent,
> the MC detent spring is missing,.......BARRY??
>
> I stared at it for a few hours while doing other
> things, then I did it!  I tore it apart!  I ignored
> the little voices saying "Better make a drawing of
> that!", "Better check the manual first!"  HAH!  not
> me, I'm diving IN!!
>
> I soaked half of the gears Friday night, the other
> half Saturday night, got it put together Sunday night,
> Monday morning I found out the manual isn't much help
> anyway!
>
> There's a nice homey feel to having a bucket filled
> with Kerosene and gears soaking  in the kitchen sink!
>
> I had to put the four top, right gear groups together
> three times before I figured out which ones went on
> first, I got the Geneva drive plate upside down on the
> first try, and I had the bandswitch gear and the
> clutch drive gear swapped, but that wasn't too hard to
> find.
>
> The Geneva plate also had a bent pin that I
> straightened, must have been rammed against the stop
> too hard.  It works nicely now.
>
> I did, however, manage to put the clutch together
> right the first time,......... after I found all the
> parts.
>
> Adjusted the 10 turn stops, the band switch, the
> counter (KC gear is missing, too), did a two tooth
> preload on all gears, lubed with Hoppe's No. 9 gun
> oil.
>
> What a SCHMOOZY!!
>
> Not much wear on the gears, cams, or slides, I wonder
> if this deck ever got much use.  Its a 1956 Motorola
> with two different serial numbers.
>
> Deck corners straightened, MC gears straightened, no
> damaged teeth, they run true, quiet, and free so I
> won't change them.  MC and KC shafts straight and
> true, too.
>
> I found that none of the split gear sets would slide
> past each other so I took Nolan's suggestion and honed
> the burrs off each gear, especially No. 74 which
> because of the grease and burrs wouldn't move at all!
> That has to be the most expensive single gear in the
> whole set with its internal spring set in the hollowed
> out halves.  I filed that one, it took a lot of work,
> too.  The burrs were quite big, but that gear has a
> lot of force on it and makes many revolutions as a
> pinion against the big gears of the differential.
>
> Fun puzzle!
>
> Not nearly as bad as it looks.
>
> Joe
>
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