3500B and 3500C Generator Set Engines Caterpillar


E552 Low Aftercooler Coolant Level

Usage:

3508 BGX
产生此代码的情况:

电子控制模块(ECM)检测到冷却液液位偏低。 故障诊断与排除, "事件代码"中提供有关此事件代码缺省设置及范围的信息。

系统响应:

将会记录该事件代码。

可能对性能的影响:

E552-1(警告)

E552-2(减额)

发动机功率会减额。

E552-3(停机)

发动机将停机。

故障诊断和排除:

  • 最有可能冷却液液位偏低。

  • 冷却液液位传感器可能有问题。

测试步骤 1. 检查冷却液液位

    ------ WARNING! ------

    加压的系统: 热的冷却液能造成严重的烫伤。 在发动机停机,等待冷却系统部件冷却下来后再打开冷却系统加注口盖。 缓慢松开冷却系统加注口盖,以释放掉所有压力。


  1. 关闭发动机。

  2. 待发动机冷却之后,检查冷却液液位。 请参阅操作和保养手册以了解正确的步骤。

预期结果:

冷却液液位偏低。

结果:

  • 正常 - 冷却液液位偏低。

    修复: 检查冷却系统有无泄漏。 修理发现的所有故障。 加注冷却系统至适当液位。

    停止

  • 异常 - 冷却液液位不偏低。

    修复: 冷却液液位传感器可能有问题。 请参阅故障诊断和排除, "冷却液液位传感器"中的诊断功能测试,以核实冷却液液位传感器工作正常。

    确认修理后排除故障。

    停止

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