3-11. PNVS NSA INSTALLATION ON NIGHTSIDE TEST BENCH. (CONT)
Use caution when mounting mask and window, assembly. Contact with
optical components and drive bands can cause equipment damage.
(4) Lay interface structure insert down on dunnage, being careful not to damage cable connector
(5) Move elevation mirror (5) fully downward toward NSA housing to protect it from damage.
(6) Reinstall mask and window assembly (6) to interface structure insert by reinstalling Allen
screws (7) removed in step (1) above.
d. Pneumatic System Shutdown.
While performing the following procedures, stand clear of open door. Any
movement of E/O test bench could cause injury.
(1) On nightside test bench (1, figure 3-13), rotate turnlock fasteners (2) 1/4 turn
counterclockwise and open door (3).
Figure 3-13. Pneumatic Control Panel