C 1, TM 9-2350-230-12
TABLE 2-8. OPERATION OF CUPOLA
STEP
PROCEDURE
FIG/ITEM
BEFORE OPERATION
1
Perform before-operation preventive-maintenance checks and services
2
Engage machine gun in travel lock.
WARNING:
Make certain all personnel are clear of
turret roof and
loader's hatch cover is secured open or closed.
3
Turn vehicle MASTER SWITCH on.
ELECTRICAL OPERATION (INSIDE OF CUPOLA)
4
Turn cupola control assembly POWER switch to ON position.
CAUTION: 1. Make certain cupola manual traverse handle is
down in stowed position clip.
2. Maximum operation of power cupola is 2 minutes on
and 10 minutes off to prevent damage to traverse
motor.
NOTE. 1. Safety switch will not permit cupola electrical operation
with cupola manual traverse handle engaged.
2. Cupola brake is automatically released when operating
cupola electrically.
5
Press cupola control assembly ROTATION switch to the traverse LEFT 2-21/3
or RIGHT position. Release switch to stop rotation.
ELECTRICAL OPERATION (OUTSIDE OF CUPOLA)
4A
Follow step 4 above.
5A
Press control button attached to cal. .50 machine gun left-hand grip to 2-4
traverse cupola left; press right-hand grip control button to traverse
cupola right. Release control button to stop rotation.
MANUAL OPERATION (EMERGENCY USE) 2-22
AFTER OPERATION
6
Turn cupola control assembly POWER switch to OFF position. 2-21/3
7
Perform after-operation preventive-maintenance checks and services,
2-33