TM 5-5420-226-20-1
Symptom-9
DETAILED
TROUBLESHOOTING
PROCEDURE
VEHICLE
OPERATION
- POWERPLANT,
STARTING
FROM
STEP
(Continued)
o22
I
/ check for free fuel flow at outlet of manifold
heater solenoid valve.
Second
Technician
(Rear
of Crew
Compartment)
l Disconnect
one of the
fuel lines
from
tee at manifold
heater
solenoid
valve
outlet
port.
o
l Place a container
under
tee to catch
any
fuel.
First
Technician
(Operators
Station)
l Set MASTER
BATTERY
switch
ON.
l Operate
primer
pump
while
pressing
STARTER
and
manifold
preheat
switches.
l Set MASTER
BATTERY
switch
OFF.
Does fuel flow freely from outlet of manifold
heater solenoid valve?
I
MANIFOLD
HEATER
SOLENOID
~F:~:,,
ELBOW
VALVE
3urrLY
\
I
Ifl-.
/
LINE
F
LI
MANIFOLD
HEATER
FUEL
FILTER
!\-
9
FRONT
OF ENGINE
*-=
~
(ACCESS
COVER
REMOVED)
Check manifold heater fuei
return soienoid for operation.
TA106925
4-236
.