CG137-08 and CG137-12 Industrial Engines Caterpillar


Engine Stalls Immediately After Starting

Usage:

CG137-08 FPL

可能原因

  • 燃油供给

  • 电气接头或电源

  • 发动机速度/正时传感器

  • 点火系统

  • 负载过大

建议的措施

燃油供给

确认燃油压力正确。 如有可能,询问操作员以便确定燃料质量是否有问题。 试着确定燃料来源是否有所改变。

确保在稳定、充足的压力下供应燃料。 检查燃料管的尺寸是否大到足以为发动机提供充分体积的燃料。 检查燃料系统有无泄漏。

以下情况可能影响起动:

  • 燃料压力低

  • 燃料压力过高

  • 燃油质量不良

检查以下燃料系统部件:

  • 燃料滤清器

  • 燃气压力调节器

  • 燃气切断阀

  • 燃料执行器

确认系统部件工作正常。

修理可疑部件。 必要时更换燃油滤清器。

电气接头或电源

  1. 检查电源连接和接地。 检查从电源至配电箱之间的导线线束和接头。 检查从配电盘到电子控制模块(ECM)的接线线束和接头。 请参阅测试与调整, "电气接头 - 检查"。

  1. 使用 Caterpillar 电子技师(ET)检查是否有激活的 168-2 电气系统电压不稳定、断续或不正确。 如果记录了此诊断代码,则转至故障诊断与排除, "电源 - 测试"。

转速/正时传感器

确保发动机转速 / 正时传感器安装正确。 请参考故障诊断与排除, "转速/正时 - 测试"。

点火系统

点火系统中的零件已经进行了显著改善,以便降低点火系统的损耗。 确保下列部件使用了最新零件:

  • 主点火线束和接头

  • 变压器

  • 火花塞

检查点火系统有无以下情况:

  1. 检查点火变压器和火花塞之间的连接。 连接松动可能导致电弧放电和缺火。

  1. 确保发动机上安装了正确的变压器和火花塞。 检查火花塞有无结垢和湿气,间隙调节是否正确。

  1. 检查火花塞接线端有无腐蚀,检查电极有无磨损。 这两种情况都可能导致缺火。

其他损耗或缺火现象由短路或过多湿气导致。

按照操作和保养手册保养火花塞。

负载过大

确保发动机上的负载没有过大。 降低负载。 如有必要,分离从动设备,然后再测试发动机。

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