TM 5-5420-226-20-1
Symptom-9
DETAILED
TROUBLESHOOTING
PROCEDURE
T
VEHICLE
OPERATION
- POWERPLANT,
STARTING
MANIFOLD
(Continued)
I
Check for free fuel flow at inlet to manifold heater
fuel filter.
Second
Technician
(Rear
of Crew
Compartment)
l
l
First
l
l
l
Connect
fuel line to tee at manifold
heater
solenoid
valve.
Disconnect
fuel supply
line to manifold
heater
fuel
filter.
Place
a container
under
fuel supply
line to catch
any
fuel coming
out.
Technician
(Operators
Station)
Set MASTER
BATTERY
switch
ON.
Operate
primer
pump.
Set MASTER
BATTERY
switch
OFF.
Does fuel flow freely from disconnected
line?
I
HEATER
sOLENOID
VALVE
ELBOW
j
Ifl-.
/
FUEL
m,.TEE OUTLETMANIFOLD
HEATER
FUEL
FILTER
.
n. m 0
/
./.
FRONT
OF ENGINE
(ACCESS
COVER
REMOVED)
l Clear clogged line between
the backflow valve and fuel
filter by blowing with
compressed air. If this does
not work, replace the line
(page 7-278).
TA106926
4-237