44 SEBU8605-01
Operation Section
Features and Controls
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Illustration 41
(21) Water in F uel Switch
(22) Oil Level S witch (if E quipped)
(23) E lectric Priming Pump
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Engine Shutoffs and Engine
Alarms
Shutoffs
The shutoffs are electrically operated or mechanically
operated. The electrically operated shutoffs are
controlled by the ECM.
Shutoffs are set at critical levels for the following
items:
•
Operating temperature
•
Operating pressure
•
Operating level
•
Operating rpm
The particular shutoff may need to be reset before
the engine will start.
NOTICE
Always determine the cause of the engine shutdown.
Make necessary repairs before attempting to restart
the engine.
Be familiar with the following items:
•
Types and locations of the shutoff
•
Conditions which cause each shutoff to function
•
The resetting procedure that is required to restart
the engine
Alarms
The alarms are electrically operated. The operation
of the alarms is controlled by the ECM.
The alarm is operated 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 ECM will send a signal in order to
illuminate the lamp.
Your engine may be equipped with the following
sensors or switches:
Coolant level – The low coolant level switch
indicates when the coolant level is low .
Coolant temperature – The coolant temperature
sensor indicates high jacket water coolant
temperature.
Intake manifold a ir temperature – The intake
manifold air temperature sensor indicates high intake
air temperature.
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