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Re: Silicone grease on rotor pots



Hi Don,

Good idea.  Thanks for the info.  I never thought of Fair.  I'm going to
order another tube.  Mine is getting low.  I use it for everything.  It's
good for lubing "O" rings and I've even used it on automobile head
gaskets when overhauling engines!
73's de Jess - W4MVB


On Tue, 10 Jul 2001 08:14:11 -0500 "Don DeJarnette" <ddej@simplecom.net>
writes:
>I purchased my GE Silicone Grease from Fair Radio, a surplus 
>electronics
>company.
>
>http://www.fairradio.com/
>
>Have not checked to see if they continue to have it in stock.
>
>73 de Don KC4YRT
>
>----- Original Message -----
>From: Jesse Morris <w4mvb@juno.com>
>To: <W10191@motorola.com>
>Cc: <amsat-bb@AMSAT.Org>
>Sent: Monday, July 09, 2001 7:41 PM
>Subject: Re: [amsat-bb] Silicone grease on rotor pots
>
>
>> Hi Wayne,
>>
>> I was the one who posed the item about the use of silicone grease on 
>the
>> rotor control pot. My azimuth rotor is an old CDE TR-44 and has been 
>back
>> up for about two years now with the grease on the pot and it is 
>still in
>> good shape. I have only one spot at SSE that is bad and it was bad 
>when I
>> got it up.
>>
>> You do have take the "bell" top off the rotor to put the grease on 
>but
>> you have to do that anyway if you are going to do anything else to 
>it.  I
>> first cleaned the pot (which was almost new) with alcohol, put a 
>small
>> amount of Detoxit on it and then coated the winding with a very 
>thin
>> layer of the grease.  I guess the wiper tension gets through the 
>grease.
>> I think the grease keeps the moisture out of the windings of the pot 
>and
>> keeps it from oxidizing or corroding.
>>
>> I remember this grease being originally was made by Dow Corning and 
>I
>> think it had a designation of DC-3 or DC-4.  I have always called it 
>Dow
>> Corning gut the stuff that I have now is not made by them.  The tube 
>I
>> have (which I've had for maybe 8 or 10 years) has a military stock 
>number
>> on it and is listed as "Silicone Compound - General Electric G624"  
>It
>> was made by R.H.Carlson Co. in Greenwich, CT in 1990.  I have no 
>Idea
>> where I got it. ( I probably wouldn't tell if I did know!)
>>
>> Hope this helps.
>>
>> 73's de Jess - W4MVB
>> ----
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>>
>>
>
----
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