C4.4 and C6.6 Engines for Caterpillar Built Machines Caterpillar


Injector Trim File

Usage:

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利用电子维修工具将喷油器的调整文件加载至电子控制模块(ECM)。

如果发生下述任何情况,必须向 ECM 中加载喷油器调整文件:

  • 更换喷油器。

  • 更换 ECM。

  • "喷油器调整"显示在电子维修工具 268-02 诊断代码下方。

  • 在气缸之间调换喷油器。

调换喷油器

调换喷油器有助于确定故障是在喷油器还是在气缸。 如果在气缸之间调换已装在发动机上的两只喷油器,则还必须在气缸之间调换喷油器调整文件。 按下电子维修工具"喷油器调整标定"屏幕底部的"调换"按钮。 选择需要调换的两只喷油器,然后按下 "OK(确定)"按钮。 被调换喷油器的更改次数会增加一次。

    注: 喷油器序列号和喷油器确认代码位于喷油器上。 在此过程中,电子维修工具可能需要输入喷油器确认代码。 如有必要,电子维修工具将提示您的代码。

  1. 记录各喷油器的喷油器序列号和喷油器确认代码。

  1. 点击 SIS 网站中的 "Service Software Files(维修软件文件)"。

  1. 在搜索区输入喷油器的序列号。

  1. 将喷油器调整文件下载至PC。 根据需要,对各喷油器重复本程序。

  1. 将电子维修工具连接到诊断接头上。 请参阅故障诊断与排除, "电子维修工具"。

  1. 请选择电子维修工具的下列菜单选项:

    • "维修"

    • "标定"

    • "喷油器调整标定"

  1. 选择适当的气缸。

  1. 点击 "Change(更改)"按钮。

  1. 从 PC 中选择适当的调整文件。

  1. 点击 "Open(打开)"按钮。

  1. 如果电子维修工具弹出提示,请在字段中输入喷油器确认代码。

  1. 点击 "OK(确定)"按钮。

    将喷油器调整文件加载至 ECM 中。

  1. 根据需要,对各气缸重复本程序。 如果喷油器调整文件下载失败,请确认喷油器的零件号是否正确。 重复上述测试步骤。

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