633D SYSTEMS, INC.
10. Use a lamp to observe the lens in order to check for any traces of dirt (5).
11. Repeat these steps until the lens is clean.
Caution: comply with the following steps in order to ensure the correct positioning of the head after
opening.
12. Make sure the mechanical stop is clean (6).
13. Make sure the head-lens support contact is clean (7).
14. Ensure the cleanliness of the bellows and the lens cleaner diffuser (8).
15. Close the head-lens assembly, making sure that the mechanical stop is in localized contact with the head-lens support
(9).
16. Tighten the assembly (9).
Excessive tightening could damage the localized contact.
Mechanical stop
6
Head-lens support
7
Diffuser
Bellows
8
Tighten clamp
Mechanical stop
Head-lens support
9
5
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