[研究生入学考试]新版轮机英语unit34 satnd-by engine.pptVIP

LESSON 10 PREPARATION FOR STAND-BY When instructions (指令） have been received that the main engine is to be prepared for running the following procedure（程序） for any make of marine diesel engine should be followed（遵循）: 1. Check that the fuel, lubricating oil and cooling water are at working level and drain(放残） any water or sludge from all lubricating oil and fuel tanks. The purified fuel tanks to be raised to the required temperature. Switch on the power to various auxiliaries and to the control console（控制台）. 2. Check that all valves in the various systems are operational and check the jacket water and lubricating pumps. Any leaks to be rectified(修复) immediately（立即instant）. 3. Start up jacket water pumps and check pressures. Bring into operation the heating system of the cooling water. The temperature of the cooling water returns from the jackets, liners and pistons should be raised gradually（逐渐的） to 60℃(140℉). The warming through（暖机） period should extend（持续） over a period of approximately four hours. 4. Check through the crankcase, etc, for any tools, obstructions(障碍物) or waste material and remove them and make sure that everything is correct(in good order). 5. Start up lubricating oil pumps and check that at working pressure, oil flows uniformly(均匀地) from all the bearings and then close up the crankcase. On engines having oil cooled pistons the lubricating oil pre-heater must be put into operation and the rate of heating so arranged that the temperature of the piston cooling oil returns are 32 to 35℃ over a period of at least two hours. 6. Start up injector cooling pumps（油头冷却水泵）, check pressure. Bring into operation the heating system for the fuel injector cooling water tank to raise the temperature of the water to 60℃ over a period of about two hours. If the engine is to be started on high viscosity fuel the temperature of the water should be raised to 77 to 82℃. 7. If hoppers（观察镜） or sight glasses are fitted check that there is an adequate flow of coo