斯太尔发动机维修手册二.ppt

柴油机基本知识;WD615柴油机; 第三章 WD615系列柴油机运行及保养 Third Chapter Operation and Maintenance of WD615 series Diesel Engine 1.运行注意事项。 Precautions 2.保养规则： Maintenance rules ;WD615系列柴油机运行及保养Operation and Maintenance of WD615 series Diesel Engine ;1.Precautions Check the level heights of the coolant, lub-oil and diesel oil whether they conform to the requirements before starting the diesel engine. During starting the engine, if the starting cannot perform in 15s, restarting after 2 minutes. After starting, run idly for about 2~3minutes, and the oil pressure should be above 100kPa. Diesel engine can not run at high speed and on high load suddenly when the cooling water temperature is not more than 60°C, because this would have influence on the wearability and reliability of the diesel engine. For the diesel engine with Bosch pump, while starting the engine,starting fuel thickening device must be pulled. After starting the engine, the handle of the device should be reset. The starting fuel thickening device need not be used during starting in thermal state.Diesel engine works in medium load in running-in period (in 3000 km). Inspection on lub-oil level should be done after stopping the engine for 5 minutes.Before stopping the engine, the load and speed should be decreased and the engine runs at idling speed for 5 minutes at least. ;2.燃油 Fuel 夏季：0#柴油 GB252 In summer：0# diesel fuel GB252 冬季：-10#柴油 GB252 In winter： -10# diesel fuel GB252 当环境温度低于-15oC时，选用-20#柴油；当环境温度低于-30oC时，选用-35#柴油。 When the ambient temperature is below -15oC or -30oC，-20#diesel fuel and –35# diesel fuel should be used separately。 润滑油 Lubricating oil 选用CD级机油。 CD grade oil should be used。 允许用高级别机油替换低级别机油。 Low-grade oil replaced by high-grade oil is permitted。 当环境温度高于-15oC时选用CD15W/40机油；当环境温度低于-15oC时选用5W/20机油 CD15W/40 or 5W/20 oil should be used separately when the ambient temperature is above -15oC or below-15oC。 在开车前首先检查机油液面，当油面在上限时，机油的容积为20L，机油液面下限为17L Befor