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5.1 Maintenance Overview
The use of procedures other than those specifi ed herein may result in hazardous laser radiation exposure.
Before any cleaning or maintenance work, always switch off the device and disconnect it from its power supply.
Always keep the system clean, as fl ammable debris in the working and exhaust areas constitutes a fi re hazard.
ONLY allow trained and skilled professionals to modify or disassemble this device.
• Clean and cool water must be provided to the system at all times.
• The working table must be cleaned on a daily basis.
• The mirrors and the focus lens must be checked every day and cleaned if required.
• The exhaust system must be checked every week and cleaned if required.
• The beam alignment should be checked weekly.
• The wiring should be checked every week for loose connections.
• The guide rails should be cleaned and lubricated at least twice a month.
• The air assist must be checked every month and cleaned if required.
• The whole laser machine and its accessories must be checked overall every month and cleaned where required.
5.2 Regular Maintenance
Cleaning the Water Cooling System
NEVER touch or adjust your engraver's water supply while the pump is still connected to power.
The laser tube requires cool and clean distilled water to avoid overheating. Tepid water at room temperature or
a little below is ideal. The laser tube requires at least 2 gallons (7.5 L) of cool and clean distilled water or other
laser-safe coolant to avoid overheating. If the temperature of the water ever begins to come near 100°F (38°C),
discontinue work until it has cooled or fi nd a way to reduce its temperature without interrupting the supply of water
to the laser tube. The water should never be allowed to become too cold either, which could also cause the glass
laser tube to shatter during use. During winter or if ice is used to cool hot water, ensure the temperature never falls
below 50°F (10°C).
More water should be added every few days to ensure evaporation does not cause the pump to become exposed
during use.
Cleaning the Mirrors and Focus Lens
Dust and engraving debris will accumulate on your mirror and focus lens, resulting in energy loss and damage. They
should all be cleaned frequently, ideally daily or after each use.
The mirrors may be cleaned in place. Use a lens-cleaning tissue or cloth or a cotton swab with an acetone or alcohol
cleaning solution. Take care not to touch the surface of the mirrors directly with your fi ngers. Sterile single-use
rubber gloves are helpful for this purpose. To avoid scratching the mirrors' surface coating or misaligning the laser
beam's path, swab each mirror as gently as possible. For best results, begin in the center and rotate slowly to the outer
edges in a soft circular pattern.
To clean the focus lens, remove it from the laser head, clean it in the same way as the mirrors, and then replace it.
During replacement, be mindful to leave the concave side facing down.
5. Maintenance
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