C3.4B Engines Caterpillar


Inlet Air Is Restricted

Usage:

CD-44B 398
电子控制模块 (ECM) 检测到通过空气滤清器的气流故障。 如果气流受到限制,ECM 将产生下述代码:

表 1
进气阻力代码    
J1939 代码     说明     信息    
107-15     发动机空气滤清器 1 压差:高 - 最低严重程度(1)     电子控制模块(ECM)可检测以下状况:
空气滤清器阻塞开关指示空气滤清器阻塞。
发动机运行至少 60 秒。
发动机转速至少为 1800 RPM。
如有配备,警告灯将闪烁
   
107-16     发动机空气滤清器 1 压差:高 - 中等严重程度(2)     ECM 检测到 107-15 诊断代码已激活至少 30 分钟。

如有配备,警告灯将闪烁。
发动机将减额。    

按所列步骤顺序完成以上步骤。

表 2
故障诊断与排除测试步骤     数值     结果    

1. 检查空气滤清器滤芯

A. 检查进气系统有无空气滤清器堵塞或损坏的情况。 如果发动机配备进气预滤器,则请确认进气预滤器工作正常。
   

空气滤清器堵塞
   

结果:空气滤清器堵塞。

修理:清洁或更换空气滤清器。 确认故障已排除。

结果:空气滤清器未堵塞。

转至测试步骤 2。
   

2. 检查进气管路

A. 检查进气管路有无损坏或阻塞。
   

进气管路损坏
   

结果:进气管路损坏或阻塞。

修理:修理或更换管路。 确认故障已排除。

结果:进气管路没有损坏或阻塞。

转至测试步骤 3。
   

3. 检查机装箱通风

A. 检查并确认发动机安装在通风良好的机装箱中。
   

机装箱通风
   

结果:发动机没有良好的通风。

修理:修理外壳的通风装置。 确认故障已排除。
   

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