TM 5-5420-226-20-1
Symptom-8
DETAILED
TROUBLESHOOTING
PROCEDURE
VEHICLE
OPERATION
- POWERPLANT,
STARTING
(Continued)
FROM
STEP
1
0
5
.
I
Check if fuel is being supplied to manifold heater
nozzle.
First
Technician
(Powerplant)
l Connect
high
voltage
ignition
lead to spark
plug of
cold manifold
preheater.
l Disconnect
manifold
heater
fuel inlet line at
manifold
heater
which
is not working.
Second
Technician
(Operator’s
Station)
l Set MASTER
BATTERY
switch
ON.
l At the same time, press STARTER
and
preheat
switches
and operate
primer
pump
for approximately
10 seconds,
then
release.
First
Techmcian
(Powerplant)
l Check for free fuel flow, at disconnected
inlet line, while
primer
pump
is being operated.
,
Is fuel being supplied to manifold heater nozzle?
,
I
TReplace fuel line from soienoid
valve to manifoid heater nozzie
(page 7-263).
MANIFOLD
ELBOW
l\ HI FUEL INLET
\
///
LINE
J Ill\
FUEL NOzzLE
“FUEL i+ETuRN
ASSEMBLY
LINE
MANiFOLD
HEATER
(RiGHT
SiDE OF ENGiNE
SHOWN)
(page 7-283).
Repiace manifoid heater nozzie
TA10691O
4-221
