C11 and C13 Engines and 14M and 16M Motor Graders Caterpillar


Fuel Temperature Is High

Usage:

16M B9H
采用此步骤对燃油温度高进行故障诊断与排除。 在以下任一事件码为激活状态时使用本步骤。 有关事件代码和这些代码的默认触发点的信息,请参阅 故障诊断与排除, "事件代码列表"。 必须进入 Caterpillar ET(Electronic Technician,电子技师)的监控系统才能查看这些代码的当前触发点。

表 1
事件代码    
代码和描述     产生此代码的状况     系统响应    
E363(1) 燃油供给温度高     燃油温度高于触发点温度。     将会记录该代码。    
E363(2) 燃油供给温度高     将会记录该代码。
发动机功率减额。

可能原因

  • 燃油压力调节阀

  • 燃油油位

  • 燃油管

  • 发动机过热

建议的措施

燃油压力调节阀

燃油压力调节阀工作不正常可能会导致高燃油温度。 如果怀疑有问题,检查回油压力调节阀。 清除所有可能影响调节阀正常工作的污染物或碎屑。 如果存在碎屑,找出污染物的来源。 如果回油压力调节阀磨损或损坏,更换该阀门。

燃油油位

确保燃油箱含有足够的燃油。 燃油箱油位下降时,燃油温度以便会升高。

燃油管

回油管受阻可能会导致燃油温度非常高。 确保流到燃油箱的回油没有受阻。

发动机过热

燃油通过缸盖中的油道供应至喷油器。 环境空气温度异常高可能会导致燃油温度达到触发水平。 发动机过热可能会导致燃油温度达到触发水平。

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