2-304
Change 4
TM 9-2350-267-20
ENGINE AUTOMATIC FIRE EXTINGUISHING SYSTEM
FIRE DETECTION TEST AND ALARM
PANEL INDICATORS
FAULT LAMP REMAINS ON. MANUAL LED IS LIT.
(EFFECTIVE FOR VEHICLES 345 and ABOVE)
Before troubleshooting AFES, check the following
1 Make sure MASTER switch is set to OFF (TM 9-2350-267-10).
2 Left and right projectile racks is moved to the rear of vehicle (TM9-2350-267-10).
3 Engine AFES T/A panel Maintenance switch is turned to maintenance position
(p 14-14.3).
NOTE
l Instead of using multimeter for voltage check STE/ICE troubleshooting,
INDIVIDUAL BATTERY VOLTAGE TEST-TEST 89 may be performed.
l Instead of using multimeter for continuity check, STE/ICE troubleshooting,
TEST 91 maybe performed.
A Check for protruding flow indicator of valve actuator of engine fire extin-
guisher cylinder bottle No. 2. Loosen clamps and remove ventilation duct
hose (p 14-62). Check pressure gage of engine fire extinguisher cylinder
bottle No. 2 to make sure black needle of the gage is in green temperature
wedge.
B If flow indicator is protruding, reset flow indicator of valve actuator by
pushing it into valve body. If pressure gage indicates low pressure, replace
engine fire extinguisher cylinder bottle No. 2 (p 14-27). Verify problem is
solved. If flow indicator and pressure gage reading are ok, go to step C.