The specific shutdown operation of the genera

14/03/2022

        1. The engine should be idle for a few minutes before the Cummins generator stops.
        It is very important to let the engine run at idle speed for 3-5 minutes before stopping to allow the lubricating oil and cooling water to take away the heat from the combustion chamber, bearings and shafts. This is especially important for turbocharged engines.
        The bearings and oil seals in the turbocharger are affected by the high temperature of the exhaust gas. While the engine is running, this heat is carried away by the circulating oil, but if the engine is suddenly stopped, the supercharger temperature can rise by as much as 100°f [56°C]. Overheating will result in seizure of bearings or failure of oil seals.
        Second, do not let the Cummins generator idle for too long
        Long-term idling is not good for the engine, because the combustion temperature is too low, making it impossible for the fuel to burn completely. This will cause carbon deposits, which will clog the injector nozzle holes and piston rings, and may cause the valve to stick.
        If the temperature of the engine coolant becomes too low, some of the unburned diesel will flush the oil on the cylinder walls and dilute the oil in the crankcase, subjecting all moving parts in the engine to poor lubrication.
        If the engine is not in use, it should be stopped.
        3. Turn the Cummins generator key switch to the "off" position to turn off the engine
For an engine equipped with an electric shut-off valve, the engine can be completely stopped by turning off the key switch or by turning the manual shut-off valve. The key switch controls the electric shut-off valve. As long as the control knob on the shut-off valve is not locked in the open position, turning off the key switch can always stop the engine. If using the control knob on the electric shut-off valve, turn the knob fully counterclockwise to stop the engine. The shut-off valve cannot be reopened with the key switch until the engine is completely stopped.
        4. Do not stop the engine with the decompression lever
        Some engines have decompression rods on them. Pulling the pressure relief lever will push up the intake valve or exhaust valve (depending on the engine model) pushrod to open the valve. Since the decompression lever is used to stop the push rod from the push rod seat, it will cause a lot of wear on the ball seat and ball head of the putter.
        The decompression lever can only be used as an auxiliary means of turning the engine before starting, or when adjusting the fuel injection nozzles and valves, and cannot be used to stop the engine.
        5. If any parts are faulty, stop the Cummins generator immediately

        In fact, all symptoms of failure always give the operator some warning before parts fail and the engine is damaged. Many engines were salvaged due to alert operators who noticed warning signs (sudden drop in oil pressure, abnormal sound, etc.) and stopped the engine immediately.