TM 5-5420-226-20-1
Symptom-53
T
DETAILED
TROUBLESHOOTING
PROCEDURE
SUPPORT
SYSTEM
- FIRE EXTINGUISHERS
(Continued)
Check second shot control valve for extension of
pin by using handle on control valve.
First
Technician
(Front
of Crew
Compartment)
I
l Return
second
shot
control
valve to SET
position.
I
I
l Remove safety pin and rotate handle on valve
clockwise
until
it stops.
I
Il Observe pin at the bottom of the valve for extension
of 1/8 inch.
I
PIN
CONTROL
VALVE
SAFETY
PIN
REMOVED
FOR
CI+ITY
-1
Didthevaive
operate freely and extend the pin?
l Repair second shot control
CONTROL
VALVE
valve (page 20-51).
l Install safety wire and lead
seal on second shot exterior
handle.
r
SAFETY
PIN
HA~DLE
HOT
VALVE
—
TA107255
4-566
