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4.1.4
4 - 17
(5) Using a special pair of tweezers, pull out the condenser aperture.
Fig. 4.1-36 Removing the Condenser Aperture
(6) Referring to Fig. 4.1-36, loosen the pipe and the pipe holder, and remove the single-hole
mesh aperture.
(7) Install a new aperture.
When re-using an old aperture, it should be cleaned by baking. The new aperture should
be checked under an optical microscope to make sure that it is free of dirt or dust, and that
it is clean and its hole is neatly machined.
(8) After assembling the aperture, use a spray or blower to remove any lint or dust.
(9) After the cleaning is completed, perform Steps (6) to (2), in reverse sequence, to complete
the assembling process.