C15 and C18 Petrolem Generator Set Engines Caterpillar


Engine Shutdown Occurs Intermittently

Usage:

C15 115
注: 只有在操作过程中发动机完全停机的情况下才使用本步骤。

可能原因

  • 诊断代码

  • 事件代码

  • 电气接头

  • 断路器

  • 燃油供给

建议的措施

诊断代码和 / 或事件代码

某些诊断代码和 / 或事件代码可能会造成发动机停机。 连接 Caterpillar 电子维修技师(ET)并检查是否存在激活的代码和记录的代码。 在继续进行本步骤之前应对出现的任何代码进行故障诊断与排除。

电气接头

  1. 检查电子控制模块(ECM)J1/P1 和 J2/P2 接头是否正确安装。 此外,还应彻底检查发动机转速 / 正时传感器接头。 请参考故障诊断与排除, "电气接头 - 检查"。

  1. 对从 ECM 到蓄电池室的蓄电池导线进行检查。 请参阅示意图以了解特定的接线信息。 检查至 ECM 的钥匙开关输入。 检查单体喷油器接头及相关导线有无损坏或有无间歇性故障。 检查所有发动机电路保护装置的导线和接头。 检查ECM的电源和接地线路的连接情况。 检查发动机停机开关及相关导线。 请参阅故障诊断与排除, "供电电源 - 测试"。

断路器

检查每个电路断路器的状态。 如果断路器跳闸,复位断路器。 使发动机重新投入使用之前应确定造成电路断路器跳闸的条件。 进行必要的修理。

燃油供给

  1. 目视检查燃油箱中的油位。 不可全信燃油表。 如有必要,向燃油箱添加燃油。 如果发动机的燃油耗尽,则充注燃油系统。 请参考操作和保养手册。

  1. 检查燃油管路有无以下故障:阻塞, 皱缩管路 和 挤压管路。 如果发现燃油管路有故障,则应修理和/或更换管路。

  1. 检查燃油箱有无可能会堵塞燃油供应的异物或碎屑。


    注意

    持续盘车不要超过30秒。 再次盘车前,让起动马达先冷却2分钟。


  1. 如果进行以下任何步骤,则应充注燃油系统:

    • 更换燃油滤清器

    • 维修低压燃油供油油路

    • 更换单体喷油器

    注: 检查燃油系统是否混入空气。 请参考系统操作/测试和调整手册。

  1. 检查燃油质量。 低温天气会对燃油特性带来不利影响。 请参考操作和保养手册。

  1. 检查发动机盘车起动时过滤后燃油的压力。 请参考系统操作/测试和调整。

    如果燃油压力偏低,更换燃油滤清器。 清理粗滤器 / 水分离器的碎屑。 请参考操作和保养手册。

    如果燃油压力仍然过低,则应检查燃油压力调节阀的工作情况。 此外,还应检查输油泵是否正常工作。 请参考系统操作/测试和调整。

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