[R-390] Green gear

[Roger Ruszkowski]

Robert,

Green gear worries are greatly over hyped.

If you have one use it.

If not continue with out it.

If you can not look at the gear train and see where it is at as you pull the Rf deck
and get the Rf deck back in the chassis with the cams setting
where they were when you removed the deck you should not have removed the
deck while under that much influence.

Now you just have to move the cams and parts around to where every thing lines up at 2+000
and reset the Rf deck.

With out the green gear, a couple of the slug rack like to run to dead bottom as you
life the deck free from the chassis. Remove the slug rack springs on .5-1 and 1-2 racks
before you remove the deck with out a green gear.

When you pull the R390 RF deck off chassis two gears riding on the MHz shaft come
uncoupled from the MHz shaft. You can then move the .5-1 and 1-2 cams with out moving
the rest of the gear train.

Just set the Deck to 2.+000 where the cams line up with the marks.
Dial the deck to 2.+000 when you reset the RF deck. you have to watch where
you have the 10 turn stop on the Mhz shaft so you can dial from -965 to +035.

Roger.





-----Original Message-----
From: Robert Newberry <N1XBM at amsat.org>
To: r-390 <r-390 at mailman.qth.net>
Sent: Mon, Dec 3, 2012 9:29 pm
Subject: [R-390] Green gear


I'm about to remove my RF deck. I've read on r-390.com about the green gear.

Well first off don't panic the RF deck is still in place.

I removed the gear and turned it over to see the green side. From the
description I read it appears the gear is flipped over and re-installed
back in its post aligned properly on its shaft engaging the gear behind the
the large brass gear front lower center. I did this and the gears can still
move and that shaft moves.

I assume all this does is keep the gears in sync so them moving is OK as
long as they move together. For some reason I thought this gear would
locked the whole gear train in place.

Like I said the RF deck is still sitting in the chassis, I wanted to be
clear I have the gear installed correctly before I move anything.

Thank you
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