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 Preventive Maintenance Checks and Services
A - Annually
Q - Quarterly
S - Semiannually
D - Daily
W
-
Weekly
M
-
Monthly
Items To Be
Interval
Item
Procedures
Inspected/
M
Q
S
A
No. D
W
Serviced
HALON FIREFIGHTING SYSTEM
Inspect system for loose components, loose connections,
Halon System
1
q
corrosion, breaks, and bent tubing. Tighten loose
connections hand tight plus 1/4 turn.
Use the temperature correction table listed below to deter-
Halon Tanks
2
q
mine what the correct pressure reading should be, then
check readings on gauges located on halon tank valves. If
pressure is below tolerance specified on name plate, notify
Intermediate General Support Maintenance.
Temperature Corrections
360 psi Nominal System
Minimum
Temperature
Nominal
Allowable
Pressure
Pressure
psi
psi
F
(c)
175
0
195
(-18)
212
191
+ 10
(-12)
231
208
+ 20
(-7)
228
253
+ 30
(-1)
248
276
+ 40
(+4)
271
301
+ 50
(+10)
297
330
+ 60
(+16)
324
+ 70
360
(+21)
354
+ 80
393
(+27)
386
429
+ 90
(+32)
421
468
+100
(+38)
460
511
+110
(+43)
501
+120
557
(+49)
546
+130
607
(+54)
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