Se�ng up and opera�ng
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Derksen Lich�echnik
5.6. Closing the projector housing
1.
Check whether moisture or water has entered. Re-
move visible water drops with a dry cloth.
2.
Make sure that the sealing ring is in the intended posi-
tion.
3.
The sealing ring must be free of oil, lubricant or other
substances.
4.
Screw the shell onto the projector head with at least
6.0 Nm to ensure tightness.
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