答：喷油泵是柴油机燃油供给系统的最重要部件，其工作情况好坏，直接影响柴油机的动力性、经济性、可靠性等各个方面。为保证喷油泵正常工作，在使用维护中要认真做到下述几点。 ａ．把好柴油使用及过滤关，保证进入喷油泵内的柴油高度清洁。选用符合要求牌号的柴油，且使用前 A: The fuel injection pump is the most important component of the diesel fuel supply system, its performance is good or bad, directly affect the diesel engine power, economy, reliability and other aspects. In order to ensure the normal operation of fuel injection pump, the maintenance and use of the following points should be conscientiously done. a. Good use of diesel and filter off, to ensure that the fuel injected into the pump highly clean. Selection of diesel in line with the requirements of the brand, and before use