621H Wheel Tractor-Scraper Caterpillar


Stopping the Engine

Usage:

621H EAZ


NOTICE

Stopping the engine immediately after it has been working under load can result in overheating and accelerated wear of the engine components.

Refer to the following stopping procedure, to allow the engine to cool, and to prevent excessive temperatures in the turbocharger center housing, (if equipped) which could cause oil coking problems.


Stopping The Engine From The Operator Compartment

Note: This procedure is used for shutting down the engine. When engine start switch (1) is turned to the OFF position, the engine will be shut down.

  1. Use the procedure that is described in Operation and Maintenance Manual, "Stopping the Machine" in order to stop the machine.

  2. Run the engine at low idle for 5 minutes. Do not stop the engine immediately after the engine has been working under load.


    Illustration 1g02725373

  3. Turn engine start switch (1) to the OFF position. Remove the engine start switch key.

Stopping The Engine From Outside Of The Operator Compartment

Note: Use the engine shutdown switch only when engine start switch (1) does not work or engine start switch (1) cannot be accessed.

  1. Run the engine at low idle for 5 minutes. Do not stop the engine immediately after the engine has been working under load.


    Illustration 2g02126282

  2. Move the engine shutdown switch to the OFF position. Refer to Operation and Maintenance Manual, "Engine Shutdown Switch" for further information.

    Note: The engine shutdown switch does not shut off the machines electrical system.

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