SEBU8605-01
45
Operation Section
Features and Controls
Intake manifold 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 pressure or low pressure in the fuel
rail.
Engine oil pressure –
The engine oil pressure
sensor indicates when oil pressure drops below rated
system pressure, at a set engine speed.
Engine overspeed –
If the engine rpm exceeds the
overspeed setting, the alarm will be activated.
Air
fi
lter restriction –
The switch checks the air
fi
lter when the engine is operating.
User-De
fi
ned switch –
This switch can shut down
the engine remotely.
Water in fuel switch –
This switch checks for water
in the primary fuel
fi
lter when the engine is operating.
Fuel temperature –
The fuel temperature sensor
monitors the pressurized fuel in the high-pressure
fuel pump.
Note:
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
conditions occur.
NOTICE
When an alarm is activated, corrective measures must
be taken before the situation becomes an emergency
in order to avoid possible engine damage.
If corrective measures are not taken within a
reasonable time, engine damage could result. The
alarm will continue until the condition is corrected.
The alarm may need to be reset.
Testing
Turning the keyswitch to the ON position will check
the indicator lights on the control panel. All the
indicator lights will be illuminated for 2 seconds after
the keyswitch is operated. Replace suspect bulbs
immediately.
Refer to Troubleshooting, KENR9116 for more
information.
i03554501
Overspeed
•
ECM
______________________
Electronic Control Module
•
RPM
________________________
Revolutions Per Minute
An overspeed is detected by the speed/timing
sensors.
The default setting for an overspeed is 3000 rpm.
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 overspeed can be set from 2600 rpm to 3000 rpm.
This setting depends on the application.
