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Stopping and Securing Procedures

You can stop a diesel engine by shutting off the fuel or air supply. You can shut off the fuel supply by placing the throttle or the throttle control in the STOP position. If the engine installation permits, it is a good idea to allow the engine to idle, without load, for a short time before you stop it. This practice will permit engine temperature to reduce gradually. It is also good practice to operate the manual overspeed trip when you are stopping the engine so that you can check the operating condition of the device. Before tripping the overspeed trip, reduce the engine speed to the specified idling speed. Some overspeed trips reset automatically. In some in-stallations, however, you must reset the overspeed trip manually before the engine can be started again.

In addition to the detailed procedures listed in various EOSS checklists and NAVSEA technical manuals, you should take the follow-ing steps after an engine has stopped:

1. Open the drain cocks on the exhaust lines and on the scavenging-air inlet headers (if they are provided).

2. Leave open the specified number of indicator cocks, cylinder test valves, or hand-operated relief valves so you can detect any water accumulation in the cylinders prior to starting the engine.

3. Secure the air pressure. If starting air is left on, the possibility of a serious accident will increase.

4. Close all sea valves.

5. Allow the engine to cool.

6. Clean the engine thoroughly by wiping it down before it cools. Clean the deck plates and see that the bilges are dry.

7. Arrange to have any casualties repaired. No matter how minor casualties may appear, repairs must be made and troubles must be corrected promptly.







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