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2.
This mirror shouldn't require cleaning because it is protected by an output window installed
on the shutter block. Removal of this mirror should only be done at the request of ULS
and should be performed by a qualified service technician.
3.
The first mirror is located inside the shutter block which is at the output end of the laser.
To access this mirror, one must remove the top cover and then remove the mirror.
OTE:
If this mirror is removed, a beam alignment is required after the mirror is
replaced.
4.
Loosen set screws on the rear and side of the shutter support block and remove the #1
mirror holder from the shutter support block (reference Figure 12).
5.
Remove the two 4-4- x 1/8" nylon tip set screws and replace with new ones.
6.
Thoroughly dust off the mirror using the oil free compressed air or the freon duster
described in Section 1, Paragraph h.
7.
Apply lens cleaning solution #1 to the mirror using the small plastic wash bottle. Let sit
for one minute.
8.
Final cleaning is done by gently wiping using several 100% cotton swabs. Soak the lens
with lens cleaning solution #1 and then gently roll the swab and wipe the mirror surface.
Clean only once with each swab, while wiping, and make sure that the wiping is done in
one direction only.
9.
Use a new swab and repeat rolling across the mirror once with each new swab until the
mirror is clean and dry.
OTE:
Never use a swab twice as dust build-up on the swab may scratch the mirror's
surface.
10. Reinstall mirror holder into shutter support with mirror surface at a 45
o
angle towards the
front of machine. Tighten set screws until the mirror holder rotates with some friction.
11. Realign optics per the beam alignment procedure (reference Section 4.6 - qualified
maintenance technicians only).
4.3.4 OUTPUT WIDOW CLEAIG
1.
The output window is located in the left rear portion of the processing area, and is
accessible only with the top cover removed.
2.
To clean the outside surface of the window, first blow off the window with a photographic
air duster, as described in Section 1, Paragraph h.
