Omtech SH-G570 User Manual page 86

6 Maintenance
Cleaning the Focus Lens and Its O-Ring
1. Examine the lens surface, remove coarse dust as well as possible by blowing air onto the lens
surface and, if necessary, clean it with the lens cleaning liquid and lens tissue or cloth as below.
a. Put the lens on a clean lens-cleaning tissue.
b. Put some lens-cleaning liquid on one side of the lens.
c. Leave the liquid to take effect for approximately one minute.
d. Gently wipe the liquid away with lens-cleaning tissues soaked with lens-cleaning liquid.
e. Dry this side of the lens with dry lens-cleaning tissues/cloth.
2. Repeat the same cleaning process on the other side of the lens.
NEVER use a cleaning tissue twice. Dust accumulated in the cleaning tissue
could scratch the lens surface.
3. Examine the O-ring and, if necessary, clean it with a cotton bud and a lens-cleaning tissue or cloth.
4. Examine the O-ring and lens to ensure they are clean. If any dirt remains, repeat the cleaning
process until both are thoroughly clean.
Do not touch the surface of the lens after cleaning.
Reattaching the Focus Lens
1. Carefully insert the lens into the lens holder, ensuring that its rounded convex side is facing
upwards.
2. Put the O-ring on top of the lens.
3. Carefully reassemble the lens lock ring, the laser guide connection, and the pressurized air hose
in reverse order.
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