Dan Kitching wrote:
I have no idea how old it is, but the squeal concerns me and I'd like to
lube it as a precaution before I start running the poor thing for 12 hours
at a stretch.
I don't see any lubrication fittings.
Consult the manufacturer... though I can't find anything on
"Will Scientific". Is this the full name? Any other info?
(City? State?) on the label?
Generally pumps that _NEED_ oil have obvious fittings. Pumps
that don't _NEED_ oil get the same treatment as any other
motorized device: lightly oil all metal-to-metal bearing
points (1 drop of light oil per part), wiping away the excess.
Don't oil sealed ball-bearing races.
Squeaking is bad, not only for the ears but for the life of
the device.
Use a vacuum resevoir and a vacuum switch to activate the notor
so that the motor doesn't have to run continuously. A 5 gallon
air tank makes a good vacuum resevoir. Vacuum switches cost
about $25 for adjustable mechanical ones, and more for digital
ones (I bought two used SMC off EBay for $70). Digital ones
are harder to hookup, as it requires some electronics.
--
Andrew E. Mileski
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