THUNDER LASER
NOVA-51
www.thunderlaser.com
DONGGUAN THUNDER LASER EQUIPMENT CO.,LTD
No.197, Hudong Road, Shatian Town,
Tel :(86)769 826653
Dongguan, Guangdong, China
62
5.2 Cleaning the Optical Parts
The lens has a durable multi-
coating and won’t be damaged by correct and careful
cleaning. You should inspect the focus lens and the mirrors and the beam combiner
according the maintenance plan. If you discover a veil of haze or dirt, you must clean them.
It is suggested to clean the mirrors/lens before work every day in order to run the machine
at max efficiency.
Follow the instructions below for the cleaning of optical parts:
5.2.1 Cleaning the Focus Lens
1. Move the engraving table to a distance approx. 10 cm under the lens holder.
2. Move the working head into the center of the working surface and put a cloth under
the lens holder (so that the lens is not damaged if it accidentally falls out of its holder).
3. Now you can unscrew the lens holder.
4. Once positioned over a clean lens cleaning tissue, remove the lens from the lens
holder by carefully turning the lens holder and letting the lens and the O-ring drop onto
the cleaning cloth.
5. Examine the O-ring and, if necessary, clean it with a cotton bud and a lens cleaning
tissue/cloth.
6. Remove the coarse dust as good as possible by blowing air onto the lens surface.
7. Check the surface and if necessary clean the lens with the lens cleaning liquid and
lens tissue.
8. Hold the lens assembly by its edge with a lens cleaning tissue and use a drop of lens
cleaning liquid from the little bottle which you received as an accessory delivered with
the laser. While holding the lens on an angle, flush both surfaces of the lens, to wash
away coarse soiling.
9. Put the lens on a clean lens cleaning tissue. Put some lens cleaning liquid on one side
of the lens. Leave the liquid to take effect for approximately one minute and then
gently wipe it away with lens cleaning tissues soaked with lens cleaning liquid.
10. Finally, dry this side of the lens with dry lens cleaning tissues and repeat the 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.
11. Examine the lens. If it is still soiled, repeat the cleaning process until the lens is clean.
12. Carefully insert the lens into the lens holder.
Ensure, that the rounded side (= convex)
of the lens is facing upwards. Then put the O-ring on top of the lens.
13. Carefully assemble the lens in reverse order.
