2-306.22 Change 4
TM 9-2350-267-20
CREW AUTOMATIC FIRE EXTINGUISHING SYSTEM
FIRE DETECTION TEST AND ALARM
CREW BOTTLES NOT FULLY DISCHARGING/ NOT EXTINGUISHING
PANEL INDICATORS
FIRES.
(EFFECTIVE FOR ALL VEHICLES)
Before troubleshooting AFES, check the following:
1 Make sure MASTER switch is set to OFF (TM 9-2350-267-10).
2 Left projectile rack assembly moved to rear of vehicle (TM 9-2350-267-10).
3 Make sure crew AFES T/A panel Maintenance switch is turned to
maintenance position (p 14-14.5).
NOTE
l Instead of using multimeter for voltage check, STE/ICE troubleshooting,
INDIVIDUAL BATTERY VOLTAGE TEST-TEST 89 may be per-
formed.
l Instead of using multimeter for continuity check, STE/ICE troubleshoot-
ing, TEST 91 maybe performed.
A.
B
Check pressure gage of crew fire extinguisher. The black needle of the pressure
gage should be inside the green wedge. If pressure gage needle is in the correct
position, go to step B. If needle indicated low pressure, replace crew fire
extinguisher cylinder bottle (p 14-28.3). Verify problem is solved.
Check dispersal nozzles for proper installation. Red notch on dispersal nozzle
should line up with red notch on bottle assembly. If nozzles are alined properly,
recheck step A for correctness. Verify problem is solved. If nozzle is not alined
properly, install dispersal nozzle in bottle assembly. Backup nozzle not more
than 1 full turn to line up red notches. Verify problem is solved.
