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正常情状下,喷油器偶件工作到700小时左右,就要进行检查保养,否则,会降低喷油质量,影响发动机正常工作。现将喷油器的保养内容简述如下。 (1)从机体上拆下喷油器总成拆喷油器针阀偶件时,将喷油器夹在虎钳上,用活动扳手卸下喷油器螺母,取下针阀偶件。如果针阀偶件咬死,不易取出,可在机油中加热后趁机取出。值得注意的是,在拆卸过程中禁止用其它工具敲击针阀偶件,以免损坏。 (2)清除积炭用锯条刮净喷油器紧固螺母和针阀体外部的积炭。用钢丝刷刷净针阀体喷孔周围的积炭。用细铜丝刷刷净针阀上的积炭。 (3)刮净压力室(桃形腔)和进油道压力室的积
Under normal circumstances, the fuel injector work even to about 700 hours, it is necessary to carry out inspection and maintenance, otherwise, will reduce the quality of fuel injection, affecting the normal work of the engine. Fuel injector maintenance now outlined below. (1) Removing the Injector Assembly from the Main Body When removing the injector pin coupler, clamp the injector on the vice, remove the injector nut with a wrench, and remove the needle coupler. If the needle valve pieces bite, not easy to remove, can take the opportunity to take out after heating in the oil. It is noteworthy that in the process of disassembly, it is forbidden to use other tools to knock on the needle and the coupler to avoid damage. (2) remove the coke with a saw blade to clean the fuel injector fastening nut and the valve body outside the coke. Use a wire brush to clean the carbon needle around the nozzle orifice. Brush with a thin copper wire net valve on the carbon deposition. (3) Scraping net pressure chamber (peach cavity) and the inlet pressure chamber product