Perkins 1204F-E44TA Operation And Maintenance Manual page 50

50
Operation Section
Gauges and Indicators
• The indicator lamps can be used to identify active
diagnostic codes. This system is activated by
pressing the Flash Code button.
Refer to the Troubleshooting Guide, "Indicator
Lamps" for further information.
NOTICE
If no oil pressure is indicated, STOP the engine. If
maximum coolant temperature is exceeded, STOP
the engine. Engine damage can result.
Engine Oil Pressure – The oil pressure
should be greatest after a cold engine is
started. The typical engine oil pressure
with SAE10W40 is 350 to 450 kPa ( 50 to 65 psi)
at rated rpm.
A lower oil pressure is normal at low idle. If the
engine speed and Load are stable and the gauge
reading changes, perform the following procedure:
1. Remove the load.
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 distributor 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.
SEBU9063-07