C175-16 and C175-20 Generator Set Engines Caterpillar


Fuel Temperature Is High - Sensor is Located at the Fuel Filter Base

Usage:

C175-20 BXR



图 1g02795303

燃油粗滤器底座中低压燃油温度传感器的位置

使用本程序诊断和排除燃油温度高故障,或者在下列任一事件代码为激活状态时使用本程序。 关于事件代码的信息,请参阅故障诊断与排除, "事件代码"。 必须进入 Caterpillar 电子技师(ET)上的发动机监控系统才能查看这些代码的当前触发点。 关于发动机监控系统的信息,请参阅故障诊断与排除, "发动机监控系统"。

表 1
事件代码    
CDL 代码和描述     产生此代码的状况     系统响应    
E363(1) 燃油供应温度高     低压燃油系统的燃油温度高于已编程延长时间的触发值。     记录该代码。    
E363(2) 燃油供应温度高     记录该代码。
发动机功率将会降额。

可能原因

  • 诊断代码和事件代码

  • 燃油油位

  • 低压燃油系统的燃油压力调节阀

  • 燃油温度传感器

建议的措施

诊断代码和事件代码

将 Cat(ET)连接到维修工具接头上。 检查有无现行诊断代码。

查找有无关于低压燃油系统的激活和记录的诊断代码。 继续之前,使用适当的电路测试方法诊断和排除激活的代码。

燃油油位

检查燃油箱中的燃油油位。 通常,随着燃油箱中的油位降低,燃油温度将会升高。

低压燃油系统的燃油压力调节阀

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,检查调节阀有无污染物或碎屑。 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。 如果怀疑回路燃油压力调节阀损坏或有故障,更换阀组件。

燃油温度传感器

使用 Cat ET 监视"燃油温度"参数。 确保参数值合理。 如果怀疑参数值,使用温度计检查实际燃油温度。 根据需要,对电路进行故障排除。

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