SLEEVE-WEAR 4C6259 - Caterpillar

Stopping the engine immediately after it has been working under load, can result in overheating and accelerated wear of the engine components.Avoid accelerating the engine prior to shutting it down.Avoiding hot engine shutdowns will maximize turbocharger shaft and bearing life.
Stopping a Variable Speed Engine
Note: Individual applications will have different control systems. Ensure that the shutoff procedures are understood. Use the following general guidelines to stop the engine.
Remove the load from the engine. Reduce the engine speed (rpm) to low idle. Allow the engine to idle for 5 minutes to cool the engine.
Stop the engine after the cool down period according to the shutoff system on the engine. Turn the ignition key switch to the OFF position. If necessary, refer to the instructions that are provided by the OEM.
Before any service or repairs are performed, ensure that the power supply to the engine is disconnected.
Stopping a Constant Speed Engine
Note: Individual applications will have different control systems. Ensure that the shutoff procedures are understood. Use the following general guidelines to stop the engine.
Remove the load from the engine. Allow the engine to operate without load for 5 minutes to cool the engine.
Stop the engine after the cool down period according to the shutoff system on the engine. Turn the ignition key switch to the OFF position. If necessary, refer to the instructions that are provided by the OEM.
Before any service or repairs are performed, ensure that the power supply to the engine is disconnected.