Dust free gloves or fingerstall, cotton swab in polyester fiber, absolute ethyl alcohol, air blowing
device in rubber (clean compressed air) etc.
■ Optical lens cleaning method and Notes:
(1) Please put on the fingerstall in the thumb and index finger of your left hand;
(2) Spray some absolute ethyl alcohol on the cotton swab;
(3) Hold the lens at its side edge by your thumb and index finger of your left hand（PS: Never
hold the lens directly by your fingers without fingerstall, since the lens can easily be polluted ）
(4) Hold the lens up to the same horizon of your eyes and use the cotton fiber to wipe the lens
gently from the bottom to the top or from the left to the right by your right hand (PS: The cleaning
process can only be down in one certain direction, or the lens can easily be in repeated pollution.)
(5) Use the air blowing device to sway the surface of the lens. Please clean the lens in both sides,
and once the cleaning has been done, please double check if there are still any absolute ethyl
alcohol/dust/dregs or other things are left on the lens.
Disassembly and installation of optical lens:
The whole process needs to be done in a clean place, and please take on the dust free gloves or
fingerstall before disassembly.
■ Disassembly and installation of protective windows of collimate lens:
Collimate lens can be easily damaged if the dust falls inside the head when connecting the cutting
head with the laser source.
(1) Loose the two screws showed in figure 11, and carefully take out of the lens with cover slide
drawer;
(2) Take out of the screw ring (figure 11) by tools properly and take out of the lens using your
fingers after putting on fingerstall;
(3) Cleaning the lens, cover slide drawer and screw ring;
(4) Put the cleaned lens back into the cover slide drawer; (No difference in pros and cons)
(5) Put screw ring back into the cover slide drawer;
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