3408E and 3412E Engines for Caterpillar Built Machines Caterpillar


Oil Pressure Is Low

Usage:

3412E 1KR


注意

不要在机油压力低的情况下运转发动机。 这会造成发动机损坏。 如果测得的发动机机油压力低,应停止运行发动机,直到问题得到解决。


利用此步骤对发动机机油压力低进行故障诊断与排除。

表 1
事件代码    
代码和描述     激活代码的条件     系统响应    
E100(1)发动机机油压力低警告     发动机机油压力低于激发点,延迟时间终止。     将会记录该代码。    

可能原因

  • 发动机机油油位低

  • 发动机机油滤清器脏污

  • 发动机机油泵阻塞

  • 发动机机油冷却器阻塞

  • 发动机机油被燃油稀释

  • 凸轮轴和 / 或凸轮轴轴承

  • 曲轴轴承

建议的措施

发动机机油油位

检查发动机机油油位。 如果机油油位低,则加注机油。

润滑油过滤器

检查发动机机油滤清器。 如果发动机机油滤清器脏污,安装一个新的发动机机油滤清器。 检查滤清器旁通阀的工作情况。 清洁旁通阀和壳体。 如有必要,安装新的零件。

发动机机油泵

检查发动机机油泵的进口滤网有无堵塞。 检查发动机机油泵是否过度磨损。

机油冷却器

检查发动机机油冷却器。 清洁发动机机油冷却器芯和 / 或安装新的发动机机油冷却器芯。

发动机机油被燃油稀释

检查润滑油中是否存在燃油。

凸轮轴和 / 或曲轴

检查凸轮轴和 / 或凸轮轴轴承。 检查部件是否过度磨损。 过度磨损是油道堵塞的迹象。 检查曲轴和 / 或曲轴轴承。 检查部件是否过度磨损。

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