C13, C15, and C18 Generator Set Engines Caterpillar


Engine Will Not Crank

Usage:

C18 AR3

可能原因

  • 紧急停机开关

  • 蓄电池

  • 蓄电池电缆

  • 起动电路

  • 起动马达电磁阀

  • 起动马达

  • 飞轮齿圈

  • 发动机附件

  • 气缸液锁

  • 发动机内部故障

建议措施

紧急停机开关

确认紧急停机开关处于 OFF(断开)(离开)位置。 如果开关被按下,燃油喷射将会停用,发动机无法盘车起动。 请参阅故障诊断与排除, "发动机停机开关电路 - 测试"。

蓄电池和 / 或蓄电池电缆

  1. 检查主电源开关、蓄电池接线柱和蓄电池电缆连接有无松动和腐蚀。 如果蓄电池电缆受到腐蚀,应拆下蓄电池电缆并清洁蓄电池电缆。 紧固任何松动的连接。

  1. 检查蓄电池。

    1. 向蓄电池充电。 请参阅专门说明书, SEHS7633, "蓄电池测试步骤"。

    1. 进行蓄电池负载测试。 请参阅专门说明书, SEHS9249, "针对6、8 和 12 伏铅酸蓄电池的 4C-4911 蓄电池负载测试仪 的使用"。

起动马达电磁阀或起动电路

  1. 测试起动马达电磁阀的操作。

  1. 检查通到起动马达电磁阀的线路。

起动马达或飞轮齿圈

  1. 测试起动马达电磁阀的操作。

  1. 检查起动马达小齿轮和飞轮齿圈有无损坏。

发动机附件

  1. 确保传动系统运动自如。

  1. 确保正时销没有遗留在飞轮壳上。

  1. 拆下并检查任何可能会锁定发动机的发动机附件。

    下表所示为可能会锁定发动机的发动机附件的例子。

    • 由后齿轮组驱动的液压泵

    • 空气压缩机

    • 动力转向泵

    • 发动机机油泵

气缸液锁

拆下每一个单体喷油器,检查气缸(气缸液锁)内有无液体。

注: 排出缸盖内的燃油。 拆下单体喷油器时,燃油将会从缸盖流入气缸内。

发动机内部故障

  1. 拆解发动机。 请参阅拆解和组装。

  1. 检查内部部件有无下列情况:

    • 咬合

    • 部件断裂

    • 部件弯曲

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