[SEL] Westinghouse DC generator

[Roger DiRuscio]

George if your ever in the San Francisco bay area I have an armature lathe 
with undercuter, and a growler to test the armature. It doesnt take very 
long to clean and test these, Ohm out the field windings, I have an open 
frame generator like yours and one of my field windings is open.
Looks like I will have too hand rewind mine

Roger DiRuscio, Broker Associate, The Realty Experts
Sales since 1977, 510-797-4000 ofc
Collector of antique engines
Fremont,Ca
----- Original Message ----- 
From: "Rob Skinner" <rskinner at rustyiron.com>
To: "'The SEL email discussion list'" <sel at lists.stationary-engine.com>
Sent: Friday, April 22, 2005 9:33 AM
Subject: RE: [SEL] Westinghouse DC generator


>> Anyone have experience working on early generators and have
>> some advise on how to go about testing/cleaning/using this?
>
> Hi George,
> The commutator looked a little knackered on your genny.  A pro would have 
> a
> cutter to turn the comm down, kind of like a lathe.  There are also 
> special
> stones you can use, but you can use some fine garnet paper to clean it up
> pretty.  Emery cloth is not good choice for this.
>
> The mica is high, as well.  Again, the pros have special tools for 
> undercutting,
> but you can make something up out of a piece of tool steel.  Make it like 
> a
> scraper, and then very carefully scrape the mica until it is lower than 
> the
> commutator bars.
>
> That's where I'd start.
> Rob
>
>
>
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