C27 and C32 Generator Set Engines Caterpillar


E057 Low Engine Coolant Level Derate

Usage:

C27 2A3
产生此代码的情况:

冷却液液位低于冷却液液位传感器。 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:

电子控制模块(ECM)会记录该事件。

E057(2)

  • 发动机功率减额。

  • 最有可能冷却液液位偏低。

  • 冷却系统中可能有空气。

  • 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. 停止发动机。

  1. 待发动机冷却之后,检查冷却液液位。 请参考操作和保养手册。

预期结果:

冷却液液位低。

结果:

  • 确定 - 冷却液液位低。

    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: 冷却系统中可能有空气。 有关检查冷却系统的信息,请参阅发动机的系统操作/测试和调整手册。确认修理后排除故障。

    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。 请参阅诊断功能测试故障诊断与排除, "冷却液液位传感器电路 - 测试"。确认修理后排除故障。

    停止

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