TM 9-2350-230-12
Malfunction
Probable cause
Corrective action
TURRET ELECTRICAL SYSTEM
ACCESSORY SYSTEM - Continued
77 Lack of air at
a Hose disconnect-
a Connect or re-
gas-particulate
ed or damaged
place hose.
filter unit face
piece
b Particulate fil- b
Replace filter
ter clogged
(fig 10-31).
COMMANDER'S CUPOLA
78 Split hatch
a Doors not
a Notify support
doors will not
aligned
maintenance.
close properly.
b Defective or
b Replace seals.
loose seals.
c Defective lock
c Notify support
and catch assem-
maintenance.
blies.
79 Cupola leaks
a Defective
a Replace seals.
hatch seals.
b Vision blocks
b Replace sealer
not sealed
(fig 10-49).
properly.
80 Cupola will not
a Master switch
a Turn master
traverse or erratic
off
switch ON.
in power mode.
b. Defective brush
b. Notify support
assemblies in
maintenance.
electrical con-
tact ring.
c Defective
c Replace control
switches in
box (fig 10-33 and
control box
d Damaged wiring
d Notify support
harnesses
maintenance.
e Foreign material
e Clean race ring.
in race ring.
8-31