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 TM 55-1905-223-24-18-1
Repair Fire Detection System.
2-151.
This task covers:
a. Disassembly, b. Repair, c. Assembly.
INITIAL SETUP
Equipment Condition
Tools
Electrical power to Fire Detection
T o o l kit, electrician's,
System OFF at EP102; circuit breaker
15 tagged "Out of Service - Do Not
Operate." (TM 55-1905-223-10)
Materials/Parts
Solid state relay P/N 8501-X0-80-120
Warning light P/N 50A-N5
Solid state relay P/N 8501-X0-20-120
Warning light (strobe beacon)
P/N 52EXA-N5
Warning tags, Item 1, Appendix C
WARNING
Notify the bridge that the fire. detection
system will be secured for an extended
period of time for maintenance.
a.
Unplug solid state relay (3) and remove from enclosure (2, Sheet 1).
b.
Tag and disconnect electrical leads (4) to warning lights (1).
c.
Remove mounting hardware and remove warning lights (1).
d.
Unplug solid state relay (6) and remove from enclosure (5, Sheet 2).
e.
Tag and disconnect electrical leads (7) to warning light (9).
f.
Remove mounting hardware securing warning light (9) to connector box (8).
Remove warning light (strobe beacon) (9).
g.
Repair at this level of maintenance is by replacement of solid state relays (3,
6) and warning lights (1, 9).
Change 1
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