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page 30
The following figures are provided as a starting point to help troubleshoot any coating issues.
Wagon wheel effect- The coating height
needs to be adjusted. The coating flow
should stream to the top of the bowl.
1
– 2 single streaks across the lens this would
be caused from air in the coating filter. While
pump is running, crack the bleed valve ¼ turn
on the Meissner filter. This will allow the air to
escape.
Tiny pits that appear to have indented the
lens. If these pits are always in the same
position check to ensure spindle is spinning at
the correct speeds and or even spinning at
all. The indentations may be caused from the
wash tip always returning to the same
position on the lens while spindle is not
spinning.
Pits on the outer edge of the lens and or in
clumps may be caused by either the Air jet
pressure, dirty wash tip or poor prime on the
wash pump. Clean tip, run wash pump prime
for 30 seconds to purge out air bubbles. If
problems still exists adjust the air flow from air
jet nozzle. Make sure lens is dry after wash
and dry cycle are completed.
