TM 5-3610-287-24
2-52. REPAIR BLACKOUT LIGHT SYSTEM (CONT)
WARNING
ELECTRICAL HAZARD. Turn off main power switch and
disconnect main power cable before repairing blackout light
system relay. Failure to do so may result in death or
serious injury.
1.
Set MAIN circuit breaker and MAIN POWER switch to OFF. Disconnect
main power cable from Section.
2.
Remove screws (1) and circuit breaker cover panel (2).
3.
Remove three screws (3) securing relay (4) to back of circuit breaker
box.
NOTE
For ease of installation, replacement of relay is
wire-by-wire.
Before removing wires (5) from old relay (4), secure new relay (4) to
4.
back of circuit breaker box with three screws (3).
Starting at rear row of terminals (6), remove wire from old relay (4)
5.
and secure to new relay (4), one wire-at a time. Continue with
remaining wires (5).
Install circuit breaker cover panel (2) with screws (1).
6.
WARNING
ELECTRICAL HAZARD. Do not connect power cable to Section
before grounding. Failure to observe this warning may
result in death or serious injury.
7.
Ground Section, connect main power cable, and set MAIN POWER switch
and MAIN circuit breaker to ON.
To test operate blackout light system, set BLACKOUT LIGHTS switch to
8.
ON (up) position. Then set BLACKOUT BYPASS switch to OFF (down)
position and open personnel door.
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