Overspeed ShutoffShould the engine overspeed, the magnetic pick up willclose the circuit to the fuel shutoff solenoid and stop theengine.The shutoff switch can be checked for proper operationat 75% overspeed condition:1. Determine the full load RPM of the engine from theserial number plate.2. Operate the engine at the corresponding speedshown in the OVERSPEED TEST RPM Column of thechart below.FULL LOAD RPMOVERSPEED TEST RPMACTUAL OVERSPEED RPM150013281770180015932124200017702360220019472596The Overspeed Test RPM is slower than the Full LoadRPM:FULL LOAD RPM x .885 = OVERSPEED TEST RPM3. While maintaining test RPM, push and hold theVERIFY button. The engine should stop.If the engine does not stop at the specified test RPM,contact your Caterpillar dealer.As the engine stops, the yellow light (2) will go on.The RESET button (1) must be pushed before startingthe engine.If the engine is equipped with a CAT Generator SetControl Panel, the devices on the panel must be reset:15
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