Omtech USB3020A User Manual page 30

5.2.3 Clean the Main Bay Daily
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.
Clean the viewing window with mild cleansers and a lens or cotton cloth. DO NOT use paper towels as they can
scratch the acrylic and reduce the cover's ability to protect you from laser radiation. Clean the interior of the main bay
thoroughly, removing any debris particles or deposits. Paper towels and window cleaner are recommended. When
necessary, clean the cover of the laser tube after it has been allowed to cool completely. Allow any fluid used in any
cleaning to dry completely before further use of the engraver.
5.2.4 Replace the Water and Clean the Tank and Pump Weekly
Because distilled water can leach chemicals from your tank and/or hoses and spread these possibly corrosive particles
to the laser tube, change your water each week regardless of its level or clarity to maximize your laser's service life.
While changing the water, clean the tank and pump completely to minimize any build up of residue or chemicals. Turn
off the laser engraver and unplug the pump. Disconnect the tank's water inlet hose, allowing it to drain. Open the water
tank, remove the pump, and clean both. Replace the pump inside the tank and reconnect the water inlet pipe. Add your
new water to the tank. Plug the pump in again and allow it to run for 2–3 minutes to restore the water throughout the
engraver's cooling system. Before starting the laser, visually confirm water is running through the laser tube without
bubbles and check the water temperature.
5.2.5 Clean the Exhaust System Weekly
After long periods of use, the inside of the fan will accumulate dust, making it less effective at removing fumes and
dust produced by engraving. The rate of dust accumulation will vary depending on the materials processed and the
working environment's air quality. Check for excessive dust at least once a week and clean the exhaust system as
needed. Turn off the laser engraver, remove the exhaust pipe, and remove any dust from the exposed fan. Clean the
exhaust pipe itself before reconnecting it to the fan. If water is used, allow the pipe to dry completely before
reattaching it.
Additionally, cease work and clean your exhaust system if you ever notice the fan making more noise than usual.
5.2.6 Clean and Lubricate the Guide Rails Twice a Month
For best results, clean and lubricate the engraver's guide rails every two weeks. Turn off the laser engraver. Move the
laser head out of the way to the far right or left. Wipe away all dust and debris along the rails with a dry cotton cloth
until it is shiny and clean. Next, lubricate the guide rails and screws with white lithium grease. Gently move the laser
head and X axis to distribute the lubricant evenly along both rails.
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