HOSE AS 3849454 - Caterpillar

Operation Description:An "UNEXPECTED ENGINE SHUTDOWN" event will occur if the following happen:
The engine is running
The engine speed suddenly becomes zero
The auto start/stop function block has not initiated a shutdownThe EMCP 3 performs the following using an independent engine speed sensor that is dedicated only for EMCP 3 use:
Determines the engine speed, in rpm, from the magnetic pickup (engine speed sensor) input
Detects diagnostics on the sensor
Annunciates an engine over/under speed conditionUse the following test steps to help troubleshoot.Test Step 1. TALK TO THE OPERATOR.
Determine the conditions that caused the unexpected shutdown.Expected Result:An unexpected shutdown was caused by an occurrence known to the operator. The operator would like to put the generator set back into service.Results:
OK - The operator can determine the cause for the "UNEXPECTED ENGINE SHUTDOWN". The condition has been repaired and the operator wants to put the generator set back into service.Repair: Reset the generator set. Resume normal operation and verify that the problem has been corrected.STOP
NOT OK - The "UNEXPECTED ENGINE SHUTDOWN" was not caused by an occurrence known to the operator. Proceed to Test Step 2.Test Step 2. CHECK FOR OTHER DIAGNOSTIC CODES.
Check for active diagnostic codes on the engine ECM and the EMCP 3. If any codes are present, correct the diagnostic codes first.Expected Result:No other diagnostic codes or indicators are active.Results:
OK - No other diagnostic codes or indicators are active.Repair: Refer to the engine troubleshooting manual for more information on engine unexpected engine shutdowns for your particular generator set.STOP
NOT OK - Another diagnostic code is active or an indicator is active.Repair: Exit the procedure. Troubleshoot the active code or indicator. Resume normal operation and verify that the problem has been corrected.STOP