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TM 5-4210-233-14&P-1
4-86. SIREN AND PA SYSTEM
This task covers:
a.
Removal
c. Installation
b.
Cleaning and Inspection
d. Follow-on Maintenance
TOOLS REQUIRED
EQUIPMENT CONDITION
Tool Kit, General Mechanics, Automotive
Main Engine Shutdown (see para 2-12.)
(Appendix B, Section III, Item 1)
APU Shutdown'(see para 2-16.)
Batteries Disconnected (see para 4-114.)
MATERIAL/PARTS REQUIRED
Emery Cloth (Item 25, Appendix E)
Butt Splice (Item 27, Appendix E)
a.
Removal.
(1) To remove PA speaker (1), tag and
disconnect wiring harness under
dashboard.
(2) Remove two mounting bolts (2) and
lockwashers (3) from bracket (4).
(3) Remove PA speaker (1) through front of
cab.
(4) Tag and disconnect wiring harness from
siren control box (5).
(5) Remove two bolts (6) and washers (7) from
bracket (8) and remove siren control box
(5).
b.
Cleaning and Inspection.
(1) Inspect wiring for fraying or cracked
insulation. If wiring is damaged,
contact Direct Support Maintenance.
(2) Inspect wire contacts and wiring for
corrosion. Clean corrosion with emery
cloth (Item 25, Appendix E). If corrosion
cannot be removed, replace
assembly
.
4-324
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