44 SEBU8603-01
Operation Section
Features and Controls
The alarm is ope
rated by a sensor or by a switch.
When the sensor or the switch is activated, a signal
is sent to the ECM. An event code is created by
the ECM. The EC
Mwillsendasignalinorderto
illuminate the lamp.
Your engine m
ay be equipped with the following
sensors or switches:
Coolant lev
el – The low coolant level switch
indicates when the coolant level is low.
Coolant tem
perature – The coolant temperature
sensor indicates high jacket water coolant
temperature.
Intake manifold air temperature – The intake
manifold air temperature sensor indicates high intake
air temper
ature.
Intake ma nifold pressure – The intake manifold
pressure
sensor checks the rated pressure in the
engine manifold.
Fuel rail
pressure – The fuel rail pressure sensor
checks for high p ressure or low pressure in the fuel
rail.
Engine oil pressure – The engine oil pressure
sensor indicates when oil pressure drops below rated
system p
ressure, at a set engine speed.
Engine overspeed – If the engine rpm exceeds the
oversp
eed setting, the alarm will be activated.
Air filter restriction – The switch checks the air
filter
when the engine is operating.
User-Defined switch – This switch can shut down
the en
gine remotely.
Water in fuel switch – This switch checks for water
in th
e primary fuel fi lter when the engine is operating.
Fuel temperature – The fuel temperature sensor
moni
tors the pressurized fuel in the high-pressure
fuel pump.
Not
e: The sensing element of the coolant
temperature switch must be submerged in coolant
in order to operate.
Engines may be equipped with alarms in order
to alert the operator when undesirable operating
co
nditions occur.
NO
TICE
When an alarm is activated, corrective measures must
be taken before the situation becomes an emergency
i
n order to avoid possible engine damage.
If corrective m
easures a re not taken within a
reasonable time, engine damage could result. The
alarm will continue until the condition is corrected.
The alarm may n
eed to be reset.
Testing
TurningthekeyswitchtotheONpositionwillcheck
the indicato
r lights on the control panel. All the
indicator lights will be illuminated for 2 seconds after
the keyswitch is operated. Replace suspect bulbs
immediatel
y.
Refer to Troubleshooting, KENR9116 for more
informatio
n.
i03554501
Overspeed
•
ECM ______________________Electronic Control Module
•
RPM ____
____________________
Revolutions Per Minute
An overspeed is detected by the speed/timing
sensors
.
Thedefaultsettingforanoverspeedis3000rpm.
The ECM
will cut the power to the electronic unit
injectors, until the rpm drops below 200 rpm of the
overspeed setting. A diagnostic fault code will be
logged
into the ECM memory and a warning lamp will
indicate a diagnostic fault code.
An ove
rspeed can be set from 2600 rpm to 3000 rpm.
This setting depends on the application.
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