Maintenance; Maintenance Overview; Cleaning; Cleaning The Main Bay And Engraver - Omtech PRO 2440 User Manual

6. Maintenance

6.1 Maintenance Overview

The use of procedures other than those specified 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 flammable debris in the working and exhaust areas constitutes a
fire hazard. ONLY allow trained and skilled professionals to modify or disassemble this device.
• Clean and cool water or laser-safe antifreeze must be provided to the system at all times.
• Any attached oxygen must be carefully maintained and protected against accidents at all times.
• The workbed must be cleaned, the waste bin emptied, and the coolant level confirmed every day.
• The 3rd mirror and focus lens must be checked every day and cleaned if required.
• The other mirrors, exhaust system, cooling fans, and air intake filter must be checked every week and cleaned if
required.
• The beam alignment and the wiring connections—especially those for the laser power supply—should be
checked weekly.
• The guide rails should be cleaned and lubricated at least twice a month.
• All other parts of the laser machine must be checked once a month and cleaned where required.
• Replace your coolant every three months for best results. Even if it is visibly clean month after month, drain it,
clean the entire system, and the replace it at least once a year.
In commercial settings, keep a cleaning and maintenance log in a clearly visible location near the engraver. Have
operators date and sign the log as cleaning and maintenance are carried out.

6.2 Cleaning

6.2.1 Cleaning the Main Bay and Engraver

Check at least once a day whether dust has accumulated in the main engraving bay. If so, it must be removed. The
exact cleaning interval and requirements strongly depend on the material being processed and the operating time of
the device. A clean machine guarantees optimal performance and reduces service costs, as well as reducing the risk
of fire or injury.
Once the main bay is clean, open the bottom left access door and pull out the debris tray. Empty loose waste, rinse
dust and fine debris off, dry, and replace the tray. Do not leave standing water in the tray.
When necessary, dust the engraver's other surfaces with a soft cloth or clean them using a mild detergent and then
rinse clean before further use. Do not use caustic chemicals or harsh abrasives. Be careful not to allow any electronic
component to become wet and let all surfaces dry completely before further use.

6.2.2 Cleaning the Focus Lens

The lens has a durable coating and won't be damaged by correct and careful cleaning. You should check the lens and
the third mirror daily and clean them if there is any debris or haze on their surfaces. Your laser will be less efficient
and heat buildup on the oil or dust itself can damage them.
Be careful in all of the following steps not to directly touch the lens surface with your hands or any dirty, oily,
or abrasive surface. Use lens-safe gloves or cloths only.
1. Move the workbed to about 4 inches (10 cm) beneath the bottom of the lens nozzle.
2. Move the laser head to a convenient location and put soft material underneath it so the lens will be protected if it
accidentally falls loose during removal or replacement.
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