TM 9-2350-230-12
Malfunction
Probable cause
Corrective action
TURRENT ELECTRIC
CONTROL - Continued
87. With power and ready
c. Defective elevating or
c. Attempt to operate turret
lights illuminated,
traversing mechanism
and weapon manually with
palm switch de-
clutch or clutch brush
palm switch depressed.
pressed, and mo-
If turret or weapon moves,
replace clutch brush
operating, control
(fig.
handle does not
d. Operate switch and/or both
drive gun and/or
d. Defective control handle
turret - Continued
control handles. Replace
handle if defective (fig.
e. Perform test set procedures
e. System malfunction
(table 10-3).
a. Replace accessory box
88. Two second drop-out
a. Defective component in
delay inoperative
accessory box
(fig.
when palm switch
released.
88. 1 Palm switch
Dirt collected under heel
Depress palm switch and
energized without
of palm switch
remove dirt with thin
being depressed
bladed tool.
a. Perform test set procedures
89. Excessive dead space
a. Traversing and/or elevating
in control handle
systems incorrectly ad-
(table 10-3).
when traversing
justed, or control handle
and/or elevating
defective.
b. Free mechanical motion in
control handles.
a. Check and tighten connec-
90. Gun-launcher elevates
a. Poor electrical connection
or depresses but
tions.
speed erratic.
b. Check operation with other
b. Defective control handle
control handle. Replace
defective handle.
c. Replace servo motor (fig.
c. Defective servo motor
a. Check and tighten connec-
91. Turret traverses but
a. Poor electrical connection
speed erratic
tions.
b. Check operation with other
b. Defective control handle
control handle. Replace
handle if defective (fig.
c. Replace servo motor (fig.
c. Defective servo motor
8-33