Usage:
System Operation
Engine Overspeed (OS)
This is an adjustable engine speed setting (normally 127% of rated speed) that prevents the engine from running at a speed that could cause damage.
An overspeed condition will cause relay SR1 to open and deenergize the shutoff solenoid. The deenergizing of the shutoff solenoid will cut the fuel to the engine causing the engine to shutdown.
NOTE: Overspeed Calibration can be done by using the engine or by using 8T5200 Signal Generator/Counter Group. To calibrate overspeed using the 8T5200 use this procedure. To calibrate overspeed using the engine refer to P-554 ESS Overspeed Calibration.
Schematic
NOTE: For a more detailed schematic, refer to 3408/3412 High Performance Marine Engine Schematic, Form No. SENR5518.
Functional Test
