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Hot engine components can cause injury from burns. Before performing maintenance on the engine, allow the engine and the components to cool. |
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| NOTICE |
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Emergency shutoff controls are for EMERGENCY use ONLY. DO NOT use emergency shutoff devices or controls for normal stopping procedure. |
Ensure that any components for the external system that aid the engine operation are secured after the engine is stopped.
"Emergency Kill" Switch
Use of the "Emergency Kill" switch will shut off the fuel. The air shutoffs will also be activated. For operation of the "Emergency Kill" switch, see this Operation and Maintenance Manual, "Universal Remote Control Console".
| NOTICE |
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Do not start the engine until the problem necessitating the emergency stop has been located and corrected. |
It may be necessary to reset the "Emergency Kill" switch before the engine can be restarted.
If the "Emergency Kill" switch is used, both of the air shutoffs must be reset before the engine can be restarted.
The power for the ECM must be cycled before the engine can be restarted.
Air Shutoffs
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| Illustration 1 | g00795294 |
(1) Manual reset (2) Manual shutoff | |
The air shutoffs are activated by air pressure when energy to a solenoid is interrupted. Each air shutoff uses a plate that rotates on a shaft in order to shut off inlet air to the turbochargers. The engine stops because of the restricted air supply to the combustion chamber. The air shutoffs will actuate for the following conditions:
- The "Emergency Kill" switch is activated.
- An overspeed shutdown occurs.
The air shutoffs must be manually reset before the engine is restarted. To reset the air shutoffs, turn the reset knobs to the "OPEN" position. Ensure that both of the air shutoffs are reset.