TM 5-5420-226-20-1
-.
DETAILED
TROUBLESHOOTING
PROCEDURE
VEHICLE
OPERATION
- POWERPLANT,
STARTING
(Continued)
Symptom-7
T
Check for free fuel flow at connection between
main fuel return line tubing and flexible hose
leading to quick disconnect.
First
Technician
(Rear
Grille
Doors)
l
l
l
l
Connect
main
fuel return
line quick
disconnect.
Tighten
main
fuel return
connection
at top of
engine.
Loosen
connection
between
main
fuel return
line
and flexible
hose.
Place
a container
under
loose connection
to catch
any fuel.
Second
Technician
(Operators
Station)
l Operate
primer
pump.
Does fuel flow freely from loose connection?
Clear clogged line between top
of engine and flexible hose by
blowing with compressed air. If
this does not work replace line
(page 7-308).
oNO
MAIN
FUEL
RETURN
LINE\
Clear clogged hose by blowing
with compressed
air. If this
does not work, replace flexible
hose (page 7-241).
-
TA106898
4-209