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SEBU9068-03
2. Stop the engine.
3. Check and maintain the oil level.
Jacket Water Coolant Temperature –
Typical temperature range is 82° to 94°C
(179.6° to 201.2°F). This temperature
range will vary according to engine load and the
ambient temperature.
A 100 kPa (14.5 psi) radiator cap must be installed
on the cooling system. The maximum temperature for
the cooling system is 108° C (226.4° F). This
temperature is measured at the outlet for the water
temperature regulator. The engine coolant
temperature is regulated by the engine sensors and
the engine ECM. This programming cannot be
altered. An engine derate can occur if the maximum
engine coolant temperature is exceeded.
If the engine is operating above the normal range,
reduce the engine load. If high coolant temperatures
are a frequent event, perform the following
procedures:
1. Reduce the load and the engine rpm.
2. Determine if the engine must be shut down
immediately or if the engine can be cooled by
reducing the load.
3. Inspect the cooling system for leaks. If necessary,
consult your Perkins dealer for assistance.
Tachometer – This gauge indicates
engine speed (rpm). When the throttle
control lever is moved to the full throttle
position without load, the engine is running at
high idle. The engine is running at the full load
rpm when the throttle control lever is at the full
throttle position with maximum rated load.
NOTICE
Operation at speeds exceeding high idle rpm should
be kept to a minimum. Overspeeding can result in
serious damage to the engine.
Ammeter – This gauge indicates the
amount of charge or discharge in the
battery charging circuit. Operation of
the indicator should be to the " " +" " side of " " 0" "
(zero).
Fuel Level – This gauge indicates the
fuel level in the fuel tank. The fuel level
gauge operates when the " " START/STOP" "
switch is in the " " on" " position.
Service Hour Meter – The gauge
indicates total operating hours of the
engine.
Low Level DEF – The gauge indicates
the amount of DEF in the tank. Level
ground is required for correct operation
of the gauge.
Indicator Lamps
There are four indicator lamps that are available.
• Shutdown Lamp
• Warning Lamp
• Wait to Start Lamp
• Low Oil Pressure Lamp
For information, refer to this manual, "Monitoring
System (Table for the Indicator Lamps)" for the
sequence of operation of the shutdown lamp and the
warning lamp.
The function of the wait to start lamp is automatically
controlled at engine start-up.
The function of the low oil pressure lamp is controlled
by the engine ECM. If low oil pressure is detected,
the lamp will be illuminated. The reason for the
illumination of the low-pressure lamp should be
investigated immediately.
All lamps will illuminate for 2 seconds in order to
check that the lamps are functioning when the
keyswitch is turned to the ON position. If any of the
lamps stay illuminated, the reason for illumination
should be investigated immediately.
Instrument panels and Displays
In order to monitor the engine a wide verity of
instrument panels are available. These instrument
panels can contain the indicator lamps and the
gauges for the application.
Also available are mini power displays and
performance monitors. These displays and monitors
can show the operator the following engine
information.
• The system configuration parameters
• The customer specified parameters
• Diagnostic codes
• Event codes
• Coolant temperature
• Oil temperature
• Oil pressure
• Intake temperature
39
Operation Section
Gauges and Indicators
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