www.ultraoptics.com
page 31
Large pits with runs behind streak: if you can
feel the pit with your finger it is most likely
debris on the lens. Check your cleaning
procedures, ensure wash tip is free and clear
of debris and wash pump is working properly.
It there is a glob of coating left on the center
of the lens; Make sure spindle is spinning.
Check for loose wires on spindle motor.
Check and or replace bearings in vacuum
chuck assembly.
