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Certainly, some pollution and lens damage can not be removed by cleaning, e.g. film burn by dirt, film
peeling off by dew or condensate water. To recover its good performance, the only way is to replace the lens.
Figure 4-7 Take out the focus lens
4.3 Auxiliary parts maintenance
4.3.1 Water chiller maintenance
Water quality and temperature of the cooling water will directly relate to lifespan of the laser tube or radio
frequency tube. Cooling water must the purified water at temperature below 30°C; the cooling water must be
kept clean and regularly replaced (minimum once a month). Check if the cooing water gets muddy, with deposit,
at over high temperature, or water replacement required; during processing, frequently check water level to
ensure sufficient water or if the water temperature is over high (higher than 30°C).
Steps of replacing cooling water:
1. Power off the machine and stop the laser device;
2. Unscrew valve of water outfall of the water chiller for a thorough drainage of water from the water
chiller;
3. Open protective cover of the water chiller and pour purified water into the water chiller;
4. Start up the machine, it will start work when the laser tube is filled up with water and formed to
circulation.
If you have purchased our water chiller, please read this section carefully!
Remove the air injection cup
assembly
Unscrew the pressure nut assembly and
lens gasket
Take out the focus lens (The surface
indicated by the arrow is convex)
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