Re: [amsat-bb] grease for rotors.

[John Harrington <johnh@xxxxxxxxxx>]

I agree completely with the use of Mobil SHC-32 grease. It is
a non-hardening grease with a wide temp range.  I would not
hesitate using it in any rotor.  One problem you may run into
is finding it in small quantities at a reasonable price. A
large pail (about three gallons) costs about 40-50 bucks
wholesale the last time I bought one.  At least one "repackager"
sells a one-ounce tube of it for twenty bucks!  Since a pail
would last a bunch of rotor owners about 500 years, a group buy
by a club would be a good way to go, as each member could get
a lifetime supply for a couple of bucks.  Any Mobil lubricant
distributor has it or can get it.

 Best regards, John  W5EME

P. Thomas Gabel wrote:
> 
> Hi all
>     I use Mobil synthetic grease "MOBILTEMP SHC-32"  it has a
> temperature range from -35F to 450F
>                                                 73  Tom  N9RPQ
> 
> Mark Johns wrote:
> 
> > The reason for using "Lubriplate," a grease marketed through
> > marine shops for lubricating outboard motor gearboxes, is
> > because it is extremely waterproof, and will not allow
> > moisture to either rust or freeze your rotor bearings.  In
> > El Paso, it's probably not necessary.  Up here in the wet,
> > cold Midwest, it's darned near essential.  On the 5400, you
> > can get to the gears on the elevation rotor by removing the
> > access plate.  Just wipe away as much of the old grease as
> > possible with a dry cloth, then squirt the Lubriplate onto
> > the bearings and run the rotor a few cycles to spread it
> > around.  It's more complicated on the azimuth side -- you
> > have to take the rotor apart to clean the bearings and
> > replace the grease.  Again, it doesn't matter if a little
> > bit of the old grease mixes in.  Lubriplate is white,
> > Yaesu's grease is black, so if you end up with a nice shade
> > of gray you've done alright.  I've used it for years, and
> > the original AMSAT Journal reference to it was attributed to
> > me (under my old call, WA0RGV) but the tip was passed to me
> > over the air by several other satellite ops before me.
> > Lubriplate is great stuff.  Good luck with it.
> > --
> > Mark D. Johns, Cedar Falls, Iowa -- K0MDJ (EN32sm)
> >  "Heaven goes by favour.  If it went by merit, you would
> >     stay out and your dog would go in." -- Mark Twain
> >
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