Omtech PRO 2440 User Manual page 36

7. Tap Z+, Z–, X+, X–, Y+, and Y– so that that the laser head is about 1 or 2 inches above the laserable scrap.
8. Hold and the laser head should start firing laser beam continuously.
9. Turn the laser key to its "OFF" postion and observe if the laser stops immediately.
Warning! If the laser continues to fire, the laser key is not working and must be replaced before the
engraver can be used. Flip off the circuit breakers and contact customer service.
Emergency Switch
1. Repeat Steps 1–8 above.
2. Hit the emergency stop and observe whether the laser stops instantly.
Warning! If the laser continues to fire, the emergency stop is not working and must be replaced before the
engraver can be used. Turn off the machine and contact customer service.
Cover Shutoff (Interlock)
Because of the risk of causing blindness, burns, and other injuries from direct exposure to the invisible engraving
beam, this device also shuts off the laser automatically when the protective cover is raised during operation.
After ensuring that the emergency stop button works, you should also test that the cover shutoff works properly before
conducting any other work on your machine.
1. Follow the procedure above for testing laser key to start up your machine and fire a low- strength test beam into
any piece of laserable scrap material.
2. Release the button.
3. Taking care not to expose yourself to seeing or being hit by any possible reflected laser light, open the cover as
little as possible and attempt to fire the laser again.
Warning! If the laser fires, the automatic shutoff is not working and must be repaired before the engraver
can be used. Turn off the machine and contact customer service.
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