[R-390] Latest update on the EAC R-390A

[chacuff]

I would pull all the slug racks, coils (screw down at the bottom through the 
coil form) and springs.

I usually start by soaking the whole chassis down with original 409 and work 
it over with a tooth brush.  (usually the wifes) and then rinse off with the 
garden hose.  You can go back then and spray down the gear train if you need 
to with something stronger..anything from mineral spirits (a great 
inexpensive cleaner) to gumout carb (be careful and wear skin and eye 
protection) cleaner and again the tooth brush trick followed by the garden 
hose.

Then I let it lay out in the sun and turn it from time to time...then a few 
days in the shop where the A/C is running to pull any remaining moisture 
out.  During that time I disassemble each coil and clean the cover in the 
same way...one at a time...looking for and cleaning out any critters that 
have been inside.

Cap and resistor replacement then reassembly and lubrication.

Usually comes out nice and I've never had a problem with the procedure.

Cecil
K5DL
----- Original Message ----- 
From: "Jim Green" <jagreen3 at sbcglobal.net>
To: <r-390 at mailman.qth.net>
Sent: Tuesday, June 05, 2012 6:09 PM
Subject: [R-390] Latest update on the EAC R-390A


> Tisha,
>
> Thanks for all the advice. I'm moving slow with this. I'm a little
> reluctant to soak the whole RF deck in solvent. Will this not damage
> the coil forms? Is it safer to just submerge the front geared section?
>
> What solvent do you use?
>
> Jim
>
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