G3520C and G3520E Generator Set Engines Caterpillar


Fuel Pressure Problem

Usage:

G3520C B9P
如果下列任一事件代码为现行状态或被记录时,请使用本步骤诊断和排除故障。

表 1
事件代码    
说明     激活代码的条件     系统响应    
E053(1)燃料压力低警告     燃料压力低于激发点,延迟时间已经终止。     警报输出被激活。 系统将会记录该代码。    
E198(1)燃料压力低    
E096(1)燃料压力高     燃料压力高于触发点,延迟时间已经终止。    
E267(1)气体燃料压力高警告    

注: 请参考故障诊断与排除, "发动机监控系统"以了解关于触发点和延迟时间的信息。

可能原因

  • 燃气压力调节器的设置不正确

  • 燃气压力调节器故障

修理建议

检查燃气压力调节器

使用 Caterpillar 电子技师(ET)观察燃料绝对压力和燃料压差。 燃料计量阀需要压力调节至 10 至 35 kPa (1.5 至 5 psi) 的燃气供应。

如果燃料压力不在可接受的范围内,则调整燃气压力调节器以获得正确的压力。 确认排放处于技术规格范围内。

如果无法将燃气压力调节器调整到正确设置,请修理或更换调节器。

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