Monitoring System - Perkins 1106A-70T Operation And Maintenance Manual

26
Features and Controls

Monitoring System

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 48 kPa (7 psi) is 110°C (230°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.
Monitoring System
If the Shutdown mode has been selected and the
warning indicator activates, engine shutdown
may take as little as 20 seconds from the time the
warning indicator is activated. Depending on the
application, special precautions should be taken
to avoid personal injury. The engine can be re-
started following shutdown for emergency ma-
neuvers, if necessary.
NOTICE
The Engine Monitoring System is not a guarantee
against catastrophic failures. Programmed delays
and derate schedules are designed to minimize false
alarms and provide time for the operator to stop the
engine.
The following parameters are monitored:
• Coolant temperature
• Oil pressure
• Engine speed/timing
For more information or assistance for repairs,
consult your Perkins dealer or your Perkins
distributor.
Overspeed
An electronic control governor can be installed to the
engine. An overspeed condition is detected by the
electronic control governor. Refer to Special
Instruction, KENR6206, "Perkins Logic Control
Governor One (LCG1) and Perkins Logic Control
Governor Two (LCG2)" for more information.
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