C175-16 and C175-20 Generator Set Engines Caterpillar


Fuel Filter Is Restricted

Usage:

C175-20 BXR
使用本步骤诊断和排除燃油滤清器故障,或者在以下事件代码为现行状态时使用本步骤。 关于事件代码的信息,请参考故障诊断与排除, "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。 有关发动机监控系统的信息,请参考故障诊断与排除, "发动机监控系统"。

表 1
事件代码    
代码和描述     产生此代码的状况     系统响应    
E390(1) 燃油滤清器阻塞     对于燃油细滤器,过滤后的燃油压力与未经过滤的燃油压力之间的差值大于触发点压力已达到编程的延迟时间。     系统将会记录该代码。    
E1129(1) 燃油滤清器(吸油侧)阻塞     对于燃油粗滤器,过滤后的燃油压力与未经过滤的燃油压力之间的差值大于触发点压力已达到编程的延迟时间。     系统将会记录该代码。    

可能原因

  • 燃油滤清器滤芯

建议的措施

燃油滤清器滤芯

  1. 使用 Cat ET 检查有无现行事件代码以确定燃油滤清器是否阻塞。

  1. 拆下相应的燃油滤清器滤芯。

  1. 充注燃油系统。 请参考操作和保养手册以了解该信息。

  1. 重新起动发动机,检查有无现行事件代码。

  1. 如果原始事件代码保持现行状态,则检查有无与燃油压力传感器相关的记录的诊断代码。 如果存在记录的代码,则检查燃油压力传感器的线束或导线中有无间歇性故障。 请参考故障诊断与排除, "电气接头 - 检查"以了解与间歇性电气故障相关的信息。

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