TM 5-5420-226-20-1
DETAILED
TROUBLESHOOTING
PROCEDURE
Symptom-17
VEHICLE
O~ERATION
- POWERPLANT,
STOPPING
-Y
(Continued)
Check fuel shut off solenoid
lead (CKT 54A) at fuel
shut off solenoid
for electrical
power.
Second
Technician
(Operators
Station)
l Set MASTER
BATTERY
switch
OFF.
First
Technician
(Rear
of Crew
Compartment)
l Reconnect
engine electrical
harness
(CKT 54A) to fuel
shut
off
solenoid
lead connector.
First
Technician
(Top
Deck)
l Have top deck removed
(Page
16-21).
l Remove front engine cooling fan (page 9-55).
First
Technician
(Engine)
l Disconnect
fuel shutoff
solenoid
electrical
lead (CKT
54A) from
fuel shut
off solenold.
l Connect red probe of meter to center contact of solenoid
electrical
lead connector
and black
probe
to ground.
Second
Technician
(Operators
Station)
l Set MASTER
BATTERY
switch
ON.
l Momentarily
set ENGINE
FUEL
SHUT
OFF
switch
in up position,
then
release
it.
First
Technician
(Top
Deck)
l Check if meter indicates 18 to 30 volts dc while switch is
in up position.
Does meter indicate
18 to 30 volts dc?
\
m
II
TO VEHICLE
GROUND
. .
. .,.. .
) , ,{(
>
,>.
.
!,
LJ
A
.\
,
11
_J
I \
L-i..
.,
-==
FUEL SHUT
A
OFF SOLENOID
FOR CLARITY
QUADRANT
ASSEMBLIES
NOT SHOWN
Replace
fuel shut off solenoid
Notify support
maintenance
of
lead (page 20-28).
defective
fuei shut off soienoid/
fuei injection
pump.
\
\
TA107000
4-311