ARMY
NAVY
4-74.
TM5-6115-612-12
AG-320B0-0MM-000
INCANDESCENT LAMPS. Maintenance of
the incandescent lamps (17, figure 4-43) is limited to
replacement.
a.
Removal.
W A R N I N G
To prevent injury, ensure that battery is dis-
connected before performing maintenance on
electrical components.
(1) Disconnect battery cable plug connector
from battery.
(2) Open control panel access door.
.
(3) Unscrew and remove light cover.
Remove lamp from cover.
b. Installation.
a. Test.
(1) lnsert new lamp into cover. Ensure that
lamp base sticks out of light cover.
(2) Insert light cover with lamp into light
housing and screw in finger tight. Do not use a tool.
(3) Close control panel access door.
(4) Connect battery cable plug connector to
b a t t e r y .
4-75. VOLTMETER. Maintenance of the voltmeter
(21, figure 4-43) consists of adjustment and replace-
m e n t .
a.
Adjustment. The procedure for adjusting
the voltmeter is the same as that for adjusting the
BATTERY CHARGING ammeter (paragraph 4-69a).
b. Replacement. The procedure for replacing
the voltmeter is the same as that for replacing the
BATTERY CHARGING ammeter (paragraph 4-69b).
4-76. AMMETER. Maintenance of the OUTPUT
CURRENT ammeter (22, figure 4-43) consists of
adjustment and replacement.
a. Adjustment. The procedure for adjusting
the OUTPUT CURRENT ammeter is the same as that
for adjusting the BATTERY CHARGING ammeter
(paragraph 4-69a).
b. Replacement. The procedure for replacing
the OUTPUT CURRENT ammeter is the same as that
for replacing the BATTERY CHARGING ammeter
(paragraph 4-69b).
4-77. POTENTIOMETER. Maintenance of the
VOLTAGE ADJUST potentiometer consists of testing
and replacement.
WARNING
To prevent injury, ensure that battery is dis-
connected before performing maintenance on
electrical components.
(1) Disconnect battery cable plug connector
from battery.
(2) Open control panel access door.
(3) Loosen turnlock fasteners and open
control panel.
(4) Tag and disconnect wires from poten-
tiometer (27, figure 4-43).
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