8.LASER OPTICAL SYSTEM B-70265EN/02
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(5) Drip ethyl alcohol or lens cleaner onto the mirror surface, and
gently wipe dirty areas by using a cotton swab moistened with
the fluid.
(6) Place lens cleaning paper on the mirror, then spray ethyl alcohol
or lens cleaner over the paper and mirror. Then, move the lens
cleaning paper horizontally to and fro across the mirror.
(7) Remove any fiber dust by blowing clean air with a camera
blower.
(8) Repeat Steps (5) through (7) until all dirt on the mirror surface is
removed. Finally, clean the mirror surface with ethyl alcohol.
Proceed to step (12).
(9) When replacing the mirror, remove the mirror by sliding it from
the mirror holder.
(10) Apply a thin coat of vacuum grease to the rear of a new mirror.
(11) Slide the mirror into the mirror holder so that it bonds onto the
holder. This will soften the vacuum grease and bond the mirror
onto the holder. Check for excessive vacuum grease, if any,
around the mirror. If the mirror is dirty, clean the mirror
according to steps (4) through (8).
(12) By using a cotton swab moistened with ethyl alcohol, clean the
part of the mounting section that touches the mirror. Flakes of
coating may remain in this area. Those flakes can cause the
mirror to be misaligned.
(13) Install the mirror holder by reversing steps (2) through (3). At
this time, ensure that the mirror touches the mirror holder evenly.
When tightening the fixing screws, tighten each screw evenly.
(14) Ensure that, in the coil section of the water tube connected to the
holder, another tube is not caught. Adjust the clamping of the
cable. This completes cleaning and replacement work.
(15) Adjust the optical axis according to Section 8.6 so that a beam is
output at the center of the oscillator beam outlet.