.
. .
TM 5-5420-226-20-1
Symptom-2
DETAILED
TROUBLESHOOTING
PROCEDURE
VEHICLE
OPERATION
- POWERPLANT,
STARTING
T
(Continued)
1
Check
main fuel line between
backflow
valve and
engine
fuel pump for leaks.
\
First Technician
(Rear
of Crew
Compartment)
l Connect
main
fuel line to outlet
side of backflow
valve.
Second
Technician
(Operators
Station)
l Set MASTER
BATTERY
switch
ON.
l Set FUEL
PUMPS
switch
ON.
First
Technician
(Rear
of Crew
Compartment)
l Check for leaks in main fuel line to engine fuel
pump.
Is main fuel line to engine
fuel pump leaking?
n
u-:
:NGINE*y
FUEL
PUMP
$
;,!$.
(HIDDEN)
\Y~
\.,
I
-, \
..
\
->
\
#
-1
MAIN
FUEL
LINE
Replace
line between
backflow
valve and engine
fuel pump
(page 7-40).
/
TA106823
4-134
.