Boy I just wanted to make sure I was testing the generator correctly
and the next thing I know I'm "Justin the nine fingered"! That's simply
not true. It's the teeth where I'm down to nine!
Come on guys, this is how bad rumors get started. :-)
--- "Haynes, Mark" <email@example.com> wrote:
> Robert,et al-The tale handed down to me regarding
> the bearings is this: It
> was standard practice to use an air jet to spin the
> bearings on your
> fingers, until a few guys had the bearing lock up
> around 100,000 rpm's or
> so, removing the finger down to the knuckle, an then
> running off with the
> mangled remains. I STRONGLY SUGGEST NOT USING YOUR
> FINGER AT ANY SPEED
> GREATER THAN YOUR HAND CAN ROTATE THE BEARING.
> Unless you don't mind being
> known as Justin the nine-fingered.
> Mark Haynes
> '62 HAN6
> > -----Original Message-----
> > From: RBHouston@aol.com [SMTP:RBHouston@aol.com]
> > Sent: Tuesday, May 18, 1999 9:19 AM
> > To: firstname.lastname@example.org; email@example.com
> > Subject: Re: Generator testing
> > In a message dated 5/18/99 6:48:59 AM Pacific
> Daylight Time,
> > firstname.lastname@example.org writes:
> > << Assuming the brushes are bad, is it worth it
> (quick and easy) to
> > replace them. Or do you just buy a new generator?
> > All opinions appreciated...
> > JC >>
> > In the old days...
> > This was SOP. Disassemble the Generator, clean
> the commutator (copper end
> > of
> > the amature where the brushes run) with fine emery
> paper, scrape down the
> > lines between the copper sections to make sure
> they are not shorted out
> > between each other (just at the surface), and
> install new brushes.
> > Brushes used to be very cheap and this was a cheap
> rebuild. Check the
> > bearing at the same time and replace if necessary.
> > We had an electromagnetic device commonly called a
> "growler" to check the
> > armatures. You would place the armature on the
> machine, in a v shaped
> > notch
> > on top, turn the "growler" on, the amature would
> be drawn to the machine
> > by
> > an electromagnet, and then while twisting the
> amature, we'd hold an old
> > hacksaw blade against the side of the amature
> windings. If the amature
> > was
> > bad, the hacksaw blade would vibrate.
> > To check the bearings, take them out, clean them,
> stick a finger in where
> > the
> > shaft goes and touch the outside race against a
> turning wire wheel. The
> > bearing should spin up quickly and freely with no
> noise to speak of. A
> > whining or grinding sound means a bad bearing.
> > NOTE..none of the above is OSHA appoved, so do it
> carfully, or buy a
> > rebuilt
> > generator.
> > Those of us in the we cheap crowd are used to
> things like no finger
> > prints...
> > Robert Houston
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