I'm not so sure one of those motors can be easily dismantled. Some suggest
boring small holes in the brass on the front and back of the motor. The
hole is drilled toward the shaft and only need be drilled perhaps 1/8" deep.
Then add lubrication through those two holes. My preference is for sewing
machine oil. That's the way I did it many years ago, but I add oil every
few years.
73, Mike N4NT
----- Original Message -----
From: "Carl Huether" <km1h@jeremy.mv.com>
To: "Mike Sanders" <k0az@sofnet.com>; <heathkit@mailman.qth.net>
Sent: Sunday, December 29, 2002 8:44 PM
Subject: Re: [Heathkit] SB200 Fan motor dumb question
> Its a simple matter to remove the fan and dismantle it. Clean the shaft
and
> bushings with your favorite solvent and then apply a few drops of electric
> motor oil, 3 in 1, etc. Do not use motor oil, spray lube or grease.
>
> You may be in for a pleasant suprise when you turn it on.
> Works on the SB220 motor also.
> Do it again in another 20 years.
>
> Carl
>
>
> ----- Original Message -----
> From: "Mike Sanders" <k0az@sofnet.com>
> To: <heathkit@mailman.qth.net>
> Sent: Sunday, December 29, 2002 5:37 PM
> Subject: [Heathkit] SB200 Fan motor dumb question
>
>
> > Greetings and hopes for a great New Year for all.
> > While testing some tubes today in my trusty SB200 I found some of the
> > switches to be kranky
> > and decided some Deoxit and Qtips were in order. One thing lead to
another
> > and I went through
> > the amp and cleaned it etc. I was wondering about oiling the fan motor
in
> > this amp. The fan runs
> > fine as far as I can tell and makes no noise but I was wondering about
> > periodic oiling. I see what
> > appear to be bearings on both sides of the motor shaft. They have a
small
> > indent on them. Is this
> > the "oil port"? Or are these motors of a non lube variety? Or?? Thanks
for
> > any help. 73 de K0AZ Mike
> >
> > PS This amp has been setting for a while and not in service. I hope to
> have
> > the SB line and it on line
> > and running regularly in a couple weeks. The SB401 has a couple kinks
that
> > need to be worked out
> > which I will do as time permits. The 301 receiver is all set to go.
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