TM 5-5420-226-20-1
-—
DETAILED
TROUBLESHOOTING
PROCEDURE
VEHICLE
OPERATION
- POWERPLANT,
STARTING
Symptom-8
ONE INTAKE
MANIFOLD
PREHEATER
WILL
NOT WORK.
I
‘ARN’NG
~
HIGH
When power is on, keep hands away
from
high
voltage
ignition
lead.
Contact with high voltage output can
cause injury or death.
\
I
m
NOTE
“
This procedure is to be performed by
two persons. The lead person shall
be referred to as the first technician
and shall direct the activity of the
second
person
called the second
technician.
-
n
VOLTAGE
SPARK
LEAD
PLUG
Check for electrical
power to manifold
preheater
(RIGHT
SIDE OF ENGINE
SHOWN)
spark plug.
Second
Technician
(Operator’s
Station)
l Set MASTER
BATTERY
switch
OFF.
First
Technician
(Top
Deck)
l Have powerplant
removed
(page
5-2).
First
Technician
(Powerplant)
l Ground
hop powerplant
(page
5-25).
Do not start
engine.
l Disconnect
high voltage ignition
lead from spark plug of
cold manifold
preheater,
l Place disconnected
end of high voltage ignition
lead 1/4
inch from engine
ground.
l Check if disconnected
end of high voltage ignition
lead
arcs
to
ground
when
STARTER
and
manifold
preheater
switches
are pressed.
TA1069O4
4-215
