GASKET 2P2516 - Caterpillar

AL Fault Codes are shown as AL1 through AL18 on the upper display. Fault code indicator AL1 through AL15 applies to all generator sets. The fault codes include specific engine fault conditions. An example of an engine fault condition is the low engine oil pressure fault. The fault codes also include protective relaying functions. The underfrequency fault is an example of the protective relaying function. AL Fault Codes rely upon certain setpoints. See Systems Operation, "Service Mode" for more information on setpoints. AL Fault Codes are not stored in the fault log of the GSC+. Many of the AL Fault Codes are programmable as a fault alarm or as a shutdown fault. In order to show the severity of the fault, the AL Fault Codes are accompanied by a fault alarm indicator. Also, the fault shutdown indicator on the GSC+ can accompany an AL Fault Code. The AL Fault Codes and the related setpoints are described in the paragraphs that follow.AL1 High Water Temperature Alarm - A high water temperature shutdown is issued by the GSC+ when the engine coolant temperature increases to about 6°C (11°F) from setpoint P015. The fault alarm indicator will FLASH. The AL1 fault code is shown on the upper display after the "Alarm Fault Codes" key is pressed.P015 is the setpoint for a high water temperature shutdown. This setpoint sets the coolant level temperature. The GSC+ uses the temperature in order to declare that a shutdown fault due to high water temperature is present. When the setpoint is reached, the dedicated shutdown indicator for high water temperature FLASHES and the engine is shutdown.AL2 Low Water Temperature Alarm - When the engine coolant temperature decreases to setpoint P016, the GSC+ issues a low water temperature alarm. Setpoint P016 is the setpoint for the low water temperature alarm. The fault alarm indicator will FLASH and the AL2 fault code is shown on the upper display after the "Alarm Codes" key is pressed.P016 is the setpoint for the low water temperature alarm. By displaying P016, the GSC+ indicates a low water temperature alarm fault.AL3 Low Engine Oil Pressure Alarm - When the engine oil pressure decreases within 34 kPa (5 psi) of Setpoint P013 or setpoint P014, the GSC+ issues a low engine oil pressure alarm. The fault alarm indicator will FLASH and the "AL3" fault code is shown on the upper display after the "Alarm Codes" key is pressed.P013 is the setpoint for low oil pressure shutdown at engine rated speed. If the engine oil pressure falls below the setpoint value for P013 and the engine is running at the rated speed, the GSC+ will announce a fault for low engine oil pressure. When the setpoint is reached, the dedicated shutdown indicator for low oil pressure flashes and the engine is shut down.P014 is the setpoint for low oil pressure shutdown at idle speed. While the engine is running at idle speed, the P014 setpoint prompts the GSC+ when to declare a low oil pressure