TM 5-5420-226-20-1
Symptom-54
DETAILED
TROUBLESHOOTING
PROCEDURE
SUPPORT
SYSTEM
- FIRE EXTINGUISHER
(Continued)
Check
fire extinguisher
fuel shut off
switch
for
I
Second
Technician
(Front
of Crew
Compartment)
I
1
WARNING
.
&
When disconnected,
do not allow
battery ground straps to come into
contact with any metal surface.
v
I
l Disconnect three battery ground straps (page 10-268).
First Technician (Commanders
Station)
l Connect front accessory harness connector
to tire
extinguisher
relay.
,
Second
Technician
(Operators
Station)
l
l
l
Disconnect
two connectors
(CKT
975) from
fire
extinguisher
fuel shut
off switch
leads.
Set meter
to OHMS
X 1 scale and zero
meter,
or use
STE/ICE
Test
No. 91 (page
4-83).
Connect
probes
of meter
to contacts
of switch
leads.
FIRE
EXTINGUISHER
~
FUEL
SHUT
OFF
SWITCH=
(HIDDEN)
TAI07261
4-572