G3500B Engines Caterpillar


Ignition Timing - Adjust

Usage:

G3516B 7EZ
使用下列程序调节发动机基准正时:

注: 本程序需要燃料分析的数据。

  1. 将 Caterpillar 电子技师(ET)与发动机连接。

  2. 根据发动机性能, "燃料使用指南"中建议的正时,确认"第一要求的正时"和"第二要求的正时"参数值正确。 如果存在不正确的值,输入正确的值。

    请参考系统操作, "电子控制系统参数"以了解有关"要求的正时"参数的更多信息。

  3. 确认选择的基准正时输入适用于所用的气体类型。

    • 如果接线端 J1-20 未接地,电子控制模块(ECM)将使用"第一要求的正时"参数值作为基准正时。

    • 如果接线端 J1-20 未接地,ECM 将使用"第二要求的正时"参数值作为基准正时。

    如果输入不正确,诊断和排除输入电路的故障。 请参考发动机电气示意图。

  4. 起动发动机。 在额定转速和负载下运转发动机。

  5. 使用 Cat 电子技师查看"实际发动机点火正时"状态参数。 该参数在"一般系统参数"中。 确认实际正时约等于要求的正时。

    注: 实际正时可能根据发动机负载、转速和爆震程度而变化。

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