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a.磨,即磨合。这是延长发动机使用寿命的基础。无论是新发动机还是大修后的发动机,都必须按规范进行磨合后方能投入正常使用。 b.净,即油净、冷却液净、气净和机身净。柴油和汽油是发动机的燃料,若柴油和汽油不净,会使精密偶件加速磨损,配合间隙增大,供油压力降低,甚至造成油道堵塞等严重事故。若空气中含有大量尘土,将会加速气缸套、活塞和活塞环的磨损,缩短使用寿命。若
a. grinding, that run-in. This is the basis for extending the life of the engine. Whether it is a new engine or overhaul engine, must be run in accordance with the specifications before they can be put into normal use. b. Net, ie net oil, coolant net, net air and body net. Diesel and gasoline are the engine’s fuels. If the diesel and gasoline are not clean, the precision coupling will be accelerated and worn. With the increase of the gap, the pressure of the oil supply will be reduced and even serious accidents such as clogging of the oil passage will be caused. If the air contains a lot of dust, will accelerate the cylinder liner, piston and piston ring wear and reduce service life. If