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TM 9-2320-364-20-2
2-1389
(1) Disconnect wire 1680 from faulty rear
composite light.
(2) Connect positive (+) multimeter lead
to wire 1680 from chassis.
(3) Connect negative (–) multimeter lead
to a known good ground.
(4) Turn ON ENGINE switch
(TM 9-2320-364-10).
(a) If 10 to 14 vdc are not present,
turn OFF ENGINE switch and
repair wire 1680/24
(see schematic
Fig 2-35) or notify DS Maintenance.
(b) If 10 to 14 vdc are present,
turn OFF ENGINE switch and
replace rear composite light
(Para 7-47).
(5) Reconnect wire 1680 to rear
composite light.
(6) Install preformed packing and
composite light cover and tighten 6
screws.
VOLTAGE TEST
Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or tools contact positive electrical
circuits, a direct short may result. Damage to equipment, injury or death to personnel may occur.
(1) Turn ON ENGINE switch
(TM 9-2320-364-10).
(2) Inspect blackout clearance and tail
light operation.
(a) If blackout clearance and tail
lights do not operate, fault not
corrected. Perform Steps (3)
through (5) below and notify DS
Maintenance.
(b) If blackout clearance and tail
lights operate, fault has been
corrected.
(3) Turn off BLACKOUT MARKER
lights switch.
(4) Turn off BLACKOUT LIGHTS
selector switch.
(5) Turn OFF ENGINE switch.
VERIFY REPAIR
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