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 TM 55-1905-220-14-1
Table 2-1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) - continued
Location
Item
Item To Check/
Not Mission
No
Interval
Service
Procedure
Capable If :
162
SEMI-
At SEP. Sites
HALON SYSTEM
ANNUAL
FR 12, FR 48,
FR 56
CYLINDER ASSEMBLY
(Small Cylinder)
WARNING
Before performing maintenance
be sure system is
off and that safety pin (1) is
inserted in solenoid valve
(2). The system is oxygen
robbing. The instruction tag
(3) should be read before
any maintenance is per-
formed on the cylinder
assembly.
Insert safety pin (1). Remove screws
(4), washers (5), bracket (6) and nuts
(7) from cylinder (8).
CAUTION
Do not remove cylinder (8)
from solenoid valve (2).
Weigh the cylinder, valve and nozzle
assembly. When filled, the cylinder
assembly should weigh 12.5 lbs.
(5.68 kg). Replace if below weight.
Then replace nuts (7), bracket (6),
washers (5) and screws (4). Remove
the safety pin (1).Turn the system on.
Change 5
2-217
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