3-4. MOVING TADS TURRET ASSEMBLY MANUALLY (cont)
2. Remove boresight protective cover (3),
dayside window cover assembly (4), and
nightside window cover assembly (5).
3. Remove dayside window cover assembly (4)
with attached boresight protective cover (3)
and nightside window cover assembly (5).
Never rotate a turret without having electrical
power to release brake. Rotating a turret
against a locked brake will damage azimuth
drive gimbal assembly.
Rotate turret assembly slowly. Rapid rotation
may cause the turret assembly to bind in
azimuth and elevation. Do not rotate TADS
turret assembly in elevation. If you do, it may
cause TADS turret assembly to bind in
If brake release power supply assembly is not
connected, omit step 4 below.
4. Set MODE switch (6) on brake release power
supply assembly (7) to TADS position.
5. Move TADS turret assembly (9).
a. Pull TADS/PNVS brake release switch (8),
push down and hold.
b. Turn TADS turret assembly (9) in direction
c. Stop turning when shroud windows (10)
reach position specified in the maintenance
d. Release TADS/PNVS brake release switch
(8). Check that TADS turret assembly locks.