I picked up a quart of Molil one synthetic oil for this kind of application.
It is has a 5W-30 rating, but seems a little thinner. I use it on my window
fans, 2 or three drops on each end every year or so. Keeps them running
smooth. Ought to work fine on an Ampliifer fan motor.
Its advantage as a synthetic oil, is that it does not gum up. Some other
household oils, 3 in 1 etc. do gum up and can cause problems.
73,
Jim Zellmer, KA0VSL
-----Original Message-----
From: Rich Measures <measures@vc.net>
To: amps@contesting.com <amps@contesting.com>
To: <amps@contesting.com>
Date: Sunday, April 04, 1999 2:55 AM
Subject: Re: [AMPS] re:Socket for 3-500Z
>
>
>
>>>Another possible cause of cooling probs is failure to inject 0.02cc of 5w
>>>- 10w oil through the neoprene seal on the fan bearing chamber every 5 or
>>>so years of operation -- which is one of the reasons that we include a
>>>......fan-oiling syringe with our vhf suppressor retrofit kits.
>>
>>Ah, yes. Here's a question I've been meaning to ask you, Rich. I read in
one
>>of your articles that the original SB-220 fan had sealed bearings and that
>>you have to drill a hole in each one in order to oil it. I've got an
SB-221,
>>which came later, it looks like the bearings aren't sealed
>
>? I did not say that the bearings were "sealed". I said there were no
>oil holes above the oilite bearings so that the oil wicks could be
>replenished.
>
>> -- there's a big
>>opening where the shaft enters each bearing. Looking from the side, it's
>>kinda hard to see exactly what it looks like in the holes (at least,
without
>>doing some disassembly.) Do you just squirt the oil into those holes?
>
>? Any way you can get oil in is ok. By drilling oil holes above the
>bearings, one can lube the oil wicks. Later production motors have oil
>holes.
>>
>- later, Dick
>
>
>Rich...
>
>R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
>
>
>--
>FAQ on WWW: http://www.contesting.com/ampfaq.html
>Submissions: amps@contesting.com
>Administrative requests: amps-REQUEST@contesting.com
>Problems: owner-amps@contesting.com
>Search: http://www.contesting.com/km9p/search.htm
--
FAQ on WWW: http://www.contesting.com/ampfaq.html
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|