Re: [Amps] Replacement fan for a SB 220

["Carl" <km1h@jeremy.mv.com>]

Most of the time the original fan motor can be taken apart, the shafts and 
bearing surfaces thoroughly cleaned. Then relube including the felt 
reservoir at the back. I use a 5 or 10 weight synthetic oil that doesnt 
easily pick up dirt or harden.
The blade hub chould be 1/16" from the motor frame for proper air flow and 
the blades completely cleaned. The small aluminum piece on top of the 
perforated shield must also be in place.
Carl
KM1H


----- Original Message ----- 
From: "Bryan Swadener" <bswadener@yahoo.com>
To: <amps@contesting.com>
Sent: Tuesday, November 27, 2012 7:23 PM
Subject: Re: [Amps] Replacement fan for a SB 220


> That is Dayton pn 4M070.  Grainger sells it for $22.47.
> Reuse your old fan blade, or spend twice the money to
> get the blade and then have to balance it.
>
> vy 73,
> Bryan WA7PRC
>
> > Date: Mon, 26 Nov 2012 14:08:25 -0800
> > From: Mike K6BR
> > Subject: Re: [Amps] Replacement fan for a SB 220
> >
> > http://harbachelectronics.com/main/page_products_sb220__sb221.html
> >
> > Mike, K6BR
> >
> > -----Original Message-----
> > From: Amps [mailto:amps-bounces@contesting.com]
> > On Behalf Of Dennis Kippa
> > Sent: Sunday, November 25, 2012 1:50 PM
> > To: amps@contesting.com
> > Subject: [Amps] Replacement fan for a SB 220
> >
> > Any one know of a source for a replacement cooling fan for a
> > SB 220???
> >
> > --
> > Dennis N5DPK
> > Lake Hawkins TX
> > Wood County
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>
>
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