8. If conditions warrant securing the engine at any time, secure and notify the bridge and the engineer  officer. 9. Make repairs, test out the engine, and, if it is operating properly, notify the engineer of- ficer and the bridge. FUEL OIL CASUALTIES In addition to casualties which may involve parts of the fuel oil system within the engine, other casualties may occur which involve the system out- side of the engine. Examples of some of the possi- ble casualties, along with the action to be taken follow: WATER  IN  DIESEL  FUEL  OIL SERVICE (DAY) TANK 1. Shift fuel oil suction. 2. Notify the engineer officer and the bridge of the casualty. 3. Drain the water from all filters, strainers, and  lines. 4.   Open all test cocks on the engine, and turn the engine over until assured that the system is free of water. 5. Close the test cock. Start the engine. Check its operation. If operation is normal, notify the engineer officer and the bridge that the engine is ready for normal operation. 6.  Strip  or  drain  the  contaminated  service tank and refill with clean fuel using the fuel oil purifier. INOPERATIVE  DIESEL  FUEL  OIL TRANSFER  PUMP 1. Line up the diesel purifier to supply the tank as quickly as possible. 2. Notify the engineer officer of the casualty. 3. In an emergency, line up and use the hand- operated pump in order to continue operation. 4. At the earliest possible time, inspect and repair the fuel oil transfer pump. 5.  Report  the  results  of  the  investigation  and repairs to the engineer officer. HYDRAULIC COUPLING CASUALTIES Coupling casualties vary with each installa- tion. The following examples, and the action to be  taken,  are  applicable  to  some  Fairbanks-Morse marine installations. FAILURE  OF  THE  MAIN  LUBE  OIL PUMP 1.  Start  the  standby  pump  or  the  lube  oil transfer pump and cut in on the line. 2.  Cross-connect  the  twin  hydraulic  coupling systems. 3. Notify the engineer officer and the bridge of the casualty and the emergency measures taken. 4.  At  the  earliest  possible  time,  repair  the hydraulic lube oil pump. 5.   Report   the   repairs   completed   to   the engineer  officer  and  the  bridge,  and  request  per- mission of the engineer officer to start the pumps. INOPERATIVE  PROPELLER  SHAFT PNEUMATIC BRAKE 1. Report the casualty to the bridge and the engineer  officer. 2. Check the air pressure to the brake. 3. Check the air reducing valve to the brake. 4. Check the electrical and pressure control switches to the air control valve. 5.   If the trouble is not determined and the use of the engine is required, do the following: a. Secure the air to the brake system until proper  inspection  of  the  brake  shoes  and  expan- sion core can be made. b. Notify the bridge and the engineer of- ficer that the engine is being operated without the brake, and that the throttle alone is being used for  control. c.   Use   extreme   caution   during   the operation. d. At the earliest possible time, inspect and repair the brake. e.   Report   the   repairs   to   the   engineer officer. INOPERATIVE  COUPLING  LUBE OIL REGULATING VALVE 1. Maintain the correct operating pressure by manually operating the clutch dump valve. 2.  Report  to  the  engineer  officer  and  the bridge.  Request  permission  to  secure  the  engine to effect repairs. ENGINEMAN  1  &  C 9-8