36 SEBU8726-03 Operation Section Monitoring System The engine will be derated if the engine exceeds preset operational limits. The engine derate is achieved by restricting the amount of fuel that is available for each injection. The amount of this reduction of fuel is dependent on the severity of the fault that has caused the engine derate, typically up to a limit of 50%. This reduction in fuel results in a predetermined reduction in engine power. Shutdown The orange warning will turn ON and the red shutdown lamp will also turn ON . After the warning, the engine power will be derated. The engine will continue at the rpm of the set derate until a shutdown of the engine occurs.
The engine can be restarted after a shutdown for use in an emergency. A shutdown of the engine may occur in as little as 20 seconds. The engine can be restarted after a shutdown for use in an emergency. However, the cause of the initial shutdown may still exist. The engine may shut down again in as little as 20 seconds. If there is a signal for high coolant temperature, there will be a 2 second delay in order to verify the condition. If there is a signal for low oil pressure, there will be a 2 second delay in order to verify the condition.
For information on the operation of the warning lamps and the shutdown lamp, refer to this Operation and Maintenance Manual, “ Monitoring System (Table for Indicator Lamps)”. For each of the programmed modes, refer to Troubleshooting Guide, “Indicator Lamps” for more information on Indicator Lamps. For more information or assistance for repairs, consult your Perkins distributor or your Perkins dealer. i04710837 Monitoring System (Table for the Indicator lamps) When in operation the amber warning indicator has three states, on solid, flashing and fast flashing. The sequence is to give a visual indication of the importance of the warning. Some application can have an audible warning installed.