Indicators And Lamps; Aftertreatment Lamps - Perkins 403F-15T Operation And Maintenance Manual

SEBU8609
Gauges provide indications of engine performance.
Ensure that the gauges are in good working order.
Determine the normal operating range by observing
the gauges over a period of time.
Noticeable changes in gauge readings indicate
potential gauge or engine problems. Problems may
also be indicated by gauge readings that change
even if the readings are within specifications.
Determine and correct the cause of any significant
change in the readings. Consult your Perkins dealer
or your Perkins distributor for assistance.
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 SAE10W30 is 207 to 413 kPa (30 to 60 psi) at
rated rpm.
A lower oil pressure is normal at low idle. If the load is
stable and the gauge reading changes, perform the
following procedure:
1. Remove the load.
2. Reduce engine speed to low idle.
3. Check and maintain the oil level.
Jacket Water Coolant Temperature –
Typical temperature range is 71 to 96°C
(160 to 205°F). The maximum allowable
temperature with the pressurized cooling system
at 90 kPa (13 psi) is 125° C (257° F). Higher
temperatures may occur under certain
conditions. The water temperature reading may
vary according to load. The reading should never
exceed the boiling point for the pressurized
system that is being used.
If the engine is operating above the normal range and
steam becomes apparent, perform the following
procedure:
1. Reduce the load and the engine rpm.
2. Inspect the cooling system for leaks.
3. Determine if the engine must be shut down
immediately or if the engine can be cooled by
reducing the load.
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
To help prevent engine damage, never exceed the
high idle rpm. Overspeeding can result in serious
damage to the engine. The engine can be operated at
high idle without damage, but should never be al-
lowed to exceed high idle rpm.
Ammeter – This gauge indicates the
amount of charge or discharge in the
battery charging circuit. Operation of the
indicator should be to the right 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 operating time of the engine.

Indicators and Lamps

• Shutdown lamp
• Warning lamp
• Low-pressure oil lamp
For more information on indicator lamps refer to this
Operation and Maintenance Manual, "Monitoring
System (Table for Indicators Lamps)". All lamps will
be illuminated for 2 seconds in order to check that the
lamps are functioning when the keyswitch is turned to
the ON position. Any lamp that fails to illuminate
during the first 2 second must be replaced. If any of
the lamps stay illuminated, the reason must be
investigated immediately.

Aftertreatment Lamps

There are three aftertreatment lamps.
• Regeneration Active Lamp
• Regeneration Disabled Lamp
• Diesel Particulate Filter (DPF) Lamp
For information on the aftertreatment lamps and
warning lamps refer to this Operation and
Maintenance Manual, "Diesel Particulate Filter
Regeneration"
31
Features and Controls
Gauges and Indicators