16. Remove the front panel (by removing the 4 black oxide screws) if it is not already removed. Carefully place it to the side without removing any connections. Place it so that the sensor LEDs are visible.17. Restore electrical power.18. With safety goggles on, plug the system in stand as far away as possible while still able to reach the touch screen. Move the blade using the CUT 1 STRIP option on the Main screen. Observe that both sensor LEDs are OFF when the blade is down, and both sensor LEDs are ON when the blade is up. 19. Disconnect the unit from electrical power. Replace and fasten the front panel. 20. Reconnect the unit from electrical power and cut at least 10 test strips.