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Stopping the engine immediately after it has been working under load, can result in overheating and accelerated wear of the engine components. See the following stopping procedure, to allow the engine to cool, and to prevent excessive temperatures in the turbocharger center housing, which could cause oil coking problems. |
- While the machine is stopped, run the engine for 5 minutes at low idle. The engine idle allows hot areas of the engine to cool gradually.
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Illustration 1 g06071684 Ignition Keyswitch
(1) Delayed Engine Shutdown Override
(2) Off
(3) On
(4) Start - Turn the engine start switch to the OFF position and remove the key. There are several machine features that can occur when stopping the engine.
Engine Idle Shutdown (If Enabled)
The engine can shutdown if all the following conditions exist:
- The machine was warm when started
- The engine is left idling with the transmission in neutral
- No implement control movement
- No throttle movement
- Engine idle shutdown is enabled in the monitoring system.
Reference: Refer to the Operation and Maintenance Manual, "Operator Controls", “Engine Idle Shut Down” section for more information.
To restart the engine after an engine idle shutdown, the keyswitch must be moved into the Off position. Then turn the keyswitch back to the On or Start position
Delayed Engine Shutdown allows the engine to run for a time after the engine start switch is turned to the OFF position to cool the engine and system components. The engine start switch key may be removed.
Note: The DEF purge process will run for 2 minutes once the engine is shut down and must complete. The purge process may occur during delayed engine shutdown. Do not turn off battery disconnect switch during the purge process. Do not turn off the battery power disconnect switch until the battery disconnect indicator lamp has turned off. If the purge does not complete, a diagnostic code will become active.
Note: There may be regulations that define the requirements of the operator and/or support personnel to be present when the engine is running.
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| Illustration 2 | g06071684 |
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Ignition Keyswitch (1) Engine Forced Shut down -Stop (2) Off (3) On (4) Start | |
When the operator determines that an immediate shutdown is necessary, turn the key switch to the STOP position (2). Then turn the key switch in the counter clockwise direction and hold in that position (1) for 2 seconds.
Note: Damage could occur to the machine if the engine is not allowed to cool down before shutdown. Use the forced shutdown only if necessary.