[R-390] Finally!!!

[Bob Camp]

Hi,

How many colors of grease are evident on the gears?

That sounds like a weird question but there is a point to it. If you have a
radio that has seen little use it will have one color grease and not a lot
of it. If it has been through several owners or shops it will generally have
a lot of grease and several different colors.

If it's a multi color job I would recommend a fairly full strip down, clean,
and mechanical alignment on the gear system. It's not a whole lot more work
once you have all the modules out and are going to do an electrical
alignment anyway. With a variety of grease on there you never quite know
what is down inside the anti backlash gears. There is almost no way to get
them properly lubricated once crud or dead grease builds up inside them.

Before you go in you might do a quick check on each band. It's always a
shame to pull the whole thing apart, put it back and then find a problem.

    Take Care!

        Bob Camp
        KB8TQ


----- Original Message -----
From: "Jim Brannigan" <jbrannig@optonline.net>
To: <r-390@mailman.qth.net>
Sent: Monday, December 30, 2002 11:30 AM
Subject: [R-390] Finally!!!


> It wasn't the great WEB sites, threads, curiosity or fountain of knowledge
> available.
> It was the interminable "how to send e-mail" discussion that finally moved
> me to pull my '67 EAC out of the rack, clear the workbench and start to
work
> on it.
>
> The last time I had it open for an alignment was at least 10 years ago.
> After my back straightened out, I took off the covers and except for some
> dust and cobwebs, it is as clean as I remember it.
>
> There is a COSMOS PTO, a full set of black IERC shields and the power
> supply, Oscillator and IF decks are EAC.  I can't tell about the RF module
> until I pull it.
> Someone added a BNC jack to the rear panel.  It is labeled "SM output" and
> RG-174 leads to the RF deck.  Otherwise it is pristine.
>
> I could probably get away with a quick re-alignment, but I am going to
> replace the recommended capacitors, add a three wire AC cord and clean and
> grease the gears.  I have replacements for the filter caps, they are
sitting
> on a power supply reforming.
>
> I will inform the group on my progress.
>
> Happy New Year,
>
> Jim
>
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