3-11. PNVS NSA INSTALLATION ON NIGHTSIDE TEST BENCH. (CONT)
(a) Press container pressure relief valve (3).
(b) Open container latches (4).
(c) Remove container lid (5) and set aside in a clean dry area.
The black foam in the shipping container may dry rot over time creating a
dust/powder/grit residue. A potential exists for abrasive damage to optics
and mechanical assemblies and degradation of optical performance.
Inspect and clean assemblies as required.
(d) Inspect and remove any dust, black powder, or grit from PNVS turret before opening
Ensure that shroud window cover is installed on shroud window before
(3) Install PNVS turret assembly on PNVS holding fixture as follows:
(a) Carefully remove turret assembly (1, figure 3-6) from container (2).
(b) Position turret assembly over turret holding fixture (3) with shroud window and cover (4)
located directly over the word FRONT stenciled on holding fixture.
(c) Slowly lower turret assembly while ensuring that cable connector (5) feeds through center
of turret holding fixture.
Ensure that turret assembly alinement pin farthest from shroud window
starts into holding fixture alinement hole before alinement pin nearest
shroud window starts into fixture alinement slot. Failure to do so could
cause bending of turret alinement pins.
(d) Aline turret alinement pins (6) with holding fixture alinement hole (7) and slot (8).
(e) Seat turret assembly on holding fixture.