Figure 12. Protective windows of focus lens.
■ Disassembly and installation of collimate lens:
(1) Disassembly the cutting head and clean up all the dust on the surface of the head in a clean
place;
(2) Loosen all the screws of the collimate lens unit showed in figure 13 by hexagonal screw driver
in 3mm, and kindly suggest you use masking tape to cover the part connecting with collimate lens for
preventing dust coming inside;
(3) Take out of the collimate lens with lens’ holder by the optics resemble tools and then take out
of the screw ring and collimate lens by the same tool;
(4) Clean or change the collimate lens;
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