TM 5-5420-226-20-1
P r e v e n t i v e M a i n t e n a n ce
Itern
No.
47
Interval
Semiannual
C h e c k s a n d S e r v i c e s f o r M 4 8 A 5 A V L B H u l l -
Location
Item to
Check/Service
Fixed Fire
Extinguisher
System
- Continued
Do not pull
C o n t i n u e d
Procedure
Station person No. 1 in driver’s sta-
tion, person No. 2 in commander’s
station, and person No. 3 at rear of
vehicle just outside of engine com-
partment.
Step 5
Person No. 1 set MASTER BAT-
TERY switch to ON. Operate (and
hold momentarily) ENGINE FUEL
SHUT OFF switch.
Person No. 3 check that multimeter
reads 18-30 volts dc.
Person No. 1 set MASTER BAT-
TERY switch to OFF.
NOTE
side fire extinguisher release handle.
Person No. 1, insert 6-inch flat tip
screwdriver from front side between
fuel shutoff switch guard and release
cam. Depress (and immediately re-
lease) micro-switch located in handle
release mechanism.
Step 6
Person No. 3 check that multimeter
reads 18-30 volts dc for a minimum
of 10 seconds.
Not Fully Mission
Capable if:
3-80
Change 6
