[GreenKeys] Noisy motor - lubrication ?

Mon, 04 Feb 2002 14:25:12 -0500

I found the maintenance instructions for puting oil into the synchonous 
motor - there are these
four little ports, two on each end of the motor, which have a spring-loaded 
ball
bearing blocking them. I used a syringe filled with oil to push the balls 
inwards
and squeeze some oil into the holes.

At 06:20 PM 1/22/2001 -0500, you wrote:
>You need to find out if the bearings were the "sealed bearings" before you
>pay heed to that No Grease warning...
>
>the synchronous motors lasted longer than the series governed...
>mainly to the lack of the carbon dust from the brushes.
>
>a synchronous motor probably has had the bearings replaced...
>
>If the bearings have been replaced you will probably
>find that they are the  "open cage bearing" that needs
>to be greased when doing a P.M.
>
>The "oil lube only bearings" died... and were not available to the Army
>repair system somewhere around 1975.
>.
>
>----- Original Message -----
>From: "Roy Morgan" <[email protected]>
>To: <[email protected]>
>Sent: Monday, January 21, 2002 5:10 PM
>Subject: Re: [GreenKeys] Noisy motor - lubrication ?
>
>
> > At 03:40 PM 1/21/2002 -0600, you wrote:
> > >My friend W7JYJ and I did a lot of bearing replacements in our Model 28
> > >motors.  The bearings of course need to be greased,
> >
> >
> > I just read a Teletype manual that says NO GREASE in the Model 28 motor
> > bearings... use OIL only.
> >
> > Check what should be used before you lubricate your bearings.
> >
> > Roy
> >
> >
> > Roy Morgan
> > K1LKY since 1959
> > 7130 Panorama Drive, Derwood MD 20855
> > 301-330-8828 home .... 301-975-3254 work
> > [email protected]
> >
> > _______________________________________________
> > GreenKeys mailing list
> > [email protected]
> > http://mailman.qth.net/mailman/listinfo/greenkeys
>
>_______________________________________________
>GreenKeys mailing list
>[email protected]
>http://mailman.qth.net/mailman/listinfo/greenkeys