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TM 5-4210-220-12
4-12.
CAB - Continued
4-12.4 Siren / PA Unit.
This task covers
a.
Removal
b.
Installation
TOOLS
EQUIPMENT CONDITION
Tool Kit, General Mechanic, Automotive,
Main Engine Shutdown (see para. 2-10)
NSN 5180-00-177-7033
APU Shutdown (see para. 2-12)
Batteries Disconnected )see para. 4-24)
REMOVAL
(1)
Remove two screws (1) and washers (2).
(2)
From the backside of siren, tag and
disconnect wires (3), (4), and (5).
(3)
Disconnect cable (6) at battery bus bar,
terminal 125 Disconnect ground wire (7)
and remove siren (Battery bus bar is behind
hinged panel on dash).
(4)
Remove two nuts (8), washers (9), and
screws (10) and retain bracket (11).
INSTALLATION
(1)
Install bracket (11) using two screws
(10), washers (9), and nuts (8) Tighten nuts
firmly.
(2)
Connect wires (3), (4), and (5) to terminal
strip on the rear of siren as shown. Be sure
wires are hooked up correctly as identified.
(3)
Connect cable (6) to battery bus bar,
terminal 125, and attach wire (7) to ground.
(4)
Install siren on bracket (11) using screws
(1) and lockwashers (2) Finger tighten
screws only.
(5)
Adjust siren position in bracket for operator
convenience and tighten screws (1) firmly.
(6) Fold back hinged panel and secure.
4-94
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