3408E and 3412E Engines for Caterpillar Built Machines Caterpillar


Fuel Injector Oil Leakage - Check

Usage:

769C 01X
喷油器可能发生严重漏油。 采用以下程序确定严重漏油。

------ WARNING! ------

有电击危险。电子单体喷油器使用90-120伏电压。


  1. 拆下发动机气门盖。

  1. 电力停用喷油器。

  1. 观察喷油器的溢油口 (1) 有无漏油。 少量漏油可以接受。 正常运行中,喷油器点火时会喷出少量油。 油连续流出可能表示提升阀泄漏。 提升阀严重泄漏可阻止喷油。

注: 起动期间的正常油压应当为 5 MPa (725 psi)。 低于 5 MPa (725 psi) 的油压可能表示喷油器严重漏油。




图 1g01308874

(1) 排油口

排油口位于电磁阀下方。 用来引导油向下流动。 一些油还可能会从电磁阀侧面的方口处漏出。 在缸盖上也能发现严重漏油。

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