BUSHING 1838416 - Caterpillar

System Operation Description:If the engine speed rises above the Engine Overspeed Threshold setpoint value, the Engine Overspeed event is made active. If an overspeed condition is detected, "ENGINE OVERSPEED SHUTDOWN" will be displayed on the OCP. The information on the OCP is displayed in order to inform the operator of an overspeed condition. The Engine Overspeed Shutdown will always be a hard shutdown and may not be disabled.Conditions Which Generate This Code:The code for engine overspeed is generated when the OCP determines that an engine overspeed condition has occurred. Test Step 1. TALK TO THE OPERATOR
Determine the conditions that caused the overspeed condition. Expected Result:An overspeed was caused by an occurrence known that to the operator and the operator would like to put the genset back into service.Results:
OK - The operator can determine the cause for the overspeed condition. The condition has been repaired, and the operator wants to put the genset back into service.Repair: Reset the genset. Resume normal operation and verify that the problem has been corrected.STOP
NOT OK - The overspeed condition was not caused by an occurrence known to the operator. Proceed to Test Step 2Test Step 2. CHECK THE SETPOINTS.
View the Engine Speed Monitor and Generator Desired Engine Speed Request setpoints. Make a note of the setpoints. See Testing and Adjusting, "Electronic Control Module (ECM) - Configure". Compare the setpoints against the default setpoints of the particular generator set. Expected Result:The setpoints are correct.Results:
OK - The setpoints are correct for your particular genset. Proceed to test step 3 for EUI Engines. Proceed to test step 4 for MUI engines
NOT OK - The setpoints are NOT correct.Repair: Reprogram the setpoints. Reset the genset. Resume normal operation and verify that the problem has been corrected.STOPTest Step 3. VERIFY ENGINE SPEED CAN BE VIEWED AND ADJUSTED FROM THE OCP (EUI ENGINES ONLY)Verify that the engine speed can be viewed and adjusted from the OCP Display Screen.Expected Result:The engine speed can be viewed and adjusted from the OCP Display Screen.Results:
OK - The engine speed can be viewed and adjusted from the OCP Display Screen.Repair: Adjust the engine speed to meet site requirements. Resume normal operation and verify that the problem has been corrected.STOP
NOT OK - The engine speed cannot be adjusted. Proceed to test step 7
NOT OK - The engine speed reads zero on the OCP Display Screen. Repair: The engine speed sensor may have failed or may need to be adjusted. See Testing And Adjusting, "Speed Sensor (Engine) - Adjust". If the problem remains, replace the Engine Speed Sensor.STOPTest Step 4. CHECK THE SYSTEM BY USING THE SPEED POTENTIOMETER. (MUI ENGINES ONLY)
With the engine running, adjust the speed of the engine by turning the speed potentiometer. Expected Result:The engine can be adjusted to the desired speed.Results:
OK - The engine speed can be adjusted.Repair: Adjust the engine speed to meet site requirements. Resume normal operation and verify that the problem has been corrected.STOP
NOT OK - The engine speed cannot be adjusted with the speed potentiometer. Proceed to