5 Maintenance
BM109 SERIES 1.5KW Auto-Focusing Laser Cutting Heads
5.1 Cleaning Lens
It’s necessary to maintain lenses regularly because of the characteristic of laser cutting process,
it is recommended to clean the protective lenses once a weak. In order to facilitate the maintenance
of the protective lens, the protective lens holder adopts a drawer type structure. (Figure 6.1)
Lens cleaning
a. Tools: dust-proof gloves or finger stall, long fiber cotton stick, ethanol, rubber gas blowing.
b. Cleaning instruction:
1. The left thumb and index finger wear fingertips;
2. Spray ethanol onto the absorbent cotton stick
3. Hold the slide edge of the lens with left thumb and index finger gently. (note: avoid the fingertip
touching the surface of the lens)
4. Put the lens facing to eyes, and hold the absorbent cotton stick with the right hand. Wipe the lens
gently in single direction, from bottom to top or from left to right, (not wipe back and forth so as to
avoid secondary pollution of the lens) and use rubber blowing to sway the surface of the lens and
both sides should be cleaned. After cleaning, make sure that there is no residual: detergent,
absorbent cotton, foreign matter and impurities.
protective lens holder
Protective lens end cover
Locking screw
Figure 6.1 - Take out protective lens
V1.0
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