That spinner bulkhead, the grey disc on the front of the black cylindrical
housing,
very often doesn't fit tightly/firmly/snugly enough into the actual spinner
and there is a small gap of maybe 0.1 mm / a few thou between the grey plastic
disc and the inside of the metal spinner.
After many hours of use, when you take the spinner off for some reason, you
might
find grey powder/dust inside the spinner and a witness mark inside the spinner
where the grey plastic disc rubs against it.
So I usually wrap a few short lengths (3 inches each?) of electrical insulation
tape across the edge of the plastic disc at equal intervals around the edge of
the disc, before putting the spinner back on.
How does anyone know if there is a gap? If the spinner goes on too easily before
inserting the screws which attach it to the rear bulkhead/ disc, then there
is probably a small gap. So if there are firstly a few pieces of tape stuck
around
the edge of the front grey plastic disc, then a small push against the front
of the spinner is needed before it is possible to insert the fastening screws
in the rear bulkhead.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=489089#489089
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