4-34. BLACKOUT WARNING ASSEMBLY. - Continued
(1) Inspect rear wall blackout warning system for proper operation. Warning buzzer should ring when button is
(2) Inspect blackout warning system push button switch for ease of operation and security of mounting.
(3) Inspect warning buzzer for corrosion and security of mounting.
DEATH or serious injury could result if electrical precautions are not taken
when maintaining this equipment. Be sure that circuit breakers are set to
OFF. Be sure the equipment is properly grounded. Always have another
person standing by who is familiar with electrical shock first aid.
Remove push button switch screws (1, Figure 4-43), lockwashers (2), flat washers (3), and nuts (4)
from switch cover (5).
Remove switch cover (5) and gasket (6).
Remove nuts (7) and lockwashers (8).
Tag and disconnect electrical wires (9).
Remove screws (10) and switch (11).
Remove screws (12), lockwashers (13), and flat washers (14).
Remove housing (15).
Position switch housing (15) of push button switch on shelter and secure with screws (12),
lockwashers (13), and flat washers (14). Seal to shelter wall with RTV (3, Appendix E).