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目前农机厂、站,对喷油器总成的检查调整过于粗放。有的只检查调整开始喷油压力,把一些不应简化的项目减了。这是不对的,我们认为调整要按工艺规范进行,不但要检查调整标准喷油压力,而且要根据具体情况进一步检查喷雾锥角,喷油质量等,有的还要检查调整针阀升程,尤其对喷油器的密封性检查更应引起充分重视。喷油器的密封性检查在喷油器试验器上进行:1.将喷油器试验器预定压力升在230～240公斤/厘米~2;2.将喷油器喷油压力调高到240～250公斤/厘米~2;3.当喷油器试验器压力由200公斤/厘米~2降至180公斤/厘米~2时,标准的喷油器历时应为9～21秒。允许使用的应不小于5秒。值得注意的是:首先喷油器试验器必须符合技术
At present, agricultural machinery plant, station, the fuel injector assembly inspection adjustment is too extensive. Some only check the adjustment to start the injection pressure, the number of projects should not be reduced. This is not right, we think the adjustment should be carried out according to the technical specifications, not only to check the adjustment of standard injection pressure, but also to further examine the spray cone angle, fuel injection quality, etc., and some also check and adjust needle valve lift, In particular, the tightness of the injector should pay due attention. Injector sealing test carried out on the injector tester: 1. The injector tester predetermined pressure rose 230 ~ 240 kg / cm ~ 2; 2. Injector injection pressure increased to 240 ~ 250 kg / cm ~ 2; 3. When the injector tester pressure dropped from 200 kg / cm ~ 2 to 180 kg / cm ~ 2, the standard injector duration should be 9 ~ 21 seconds. Allowed to use should not be less than 5 seconds. It is noteworthy that: First, injector test must be in line with technology