Hi Butch,
ISTR reading somewhere that the abrasive media on emory cloth is silicon
carbide, which is conductive. If it is used on a commutator, any loose
abrasive particles can accumulate in the slots between the segments and
short them out, although I would think that copper particles from the
commutator would do the same thing. My old factory manual says to use
glasspaper, whatever that is. Probably silicon oxide. That, garnet and
aluminum
oxide are all non-conductive.
Cheers,
Pete Fullam
Butch Lewis wrote:
> Several documents that I have read (including the Haynes manual) specifically
>say "not emory cloth" when describing the cleaning of contact points and
>commutators. Does anyone know why the use of emory is disallowed?
>
> Thanks,
> Butch
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