3500 and 3500B High Displacement Engines for Caterpillar Built Machines Caterpillar


Electronic Control Module (ECM) and Personality Module (PM) - Remove and Install

Usage:

785C 1HW

拆除步骤

    注: 如果要更换 ECM,请先下载个性化模块,再拆卸 ECM。 请参考故障诊断和排除, "更换 ECM"。

  1. 将钥匙开关转到 OFF 位置。


    图 1g01052439

  2. 断开线束组件 (2)。


    注意

    不要让脏物进入燃油系统。 彻底清洁将要拆开的燃油系统部件的周围区域。 在拆开的燃油系统部件上安放适当的盖。


  3. 断开燃油软管组件 (1)。 立即用塞盖堵住开口处。

    注: ECM 后面的橡胶垫圈用安装螺栓固定。 此垫圈有助于减振。 拆下螺栓和/或 ECM 时,垫圈可能会脱落。 切勿丢失橡胶垫圈。



    图 2g00922543

  4. 支撑 ECM。 拆下螺栓 (3),然后拆下 ECM (4)。

安装步骤

    注: ECM 后面的橡胶垫圈用安装螺栓固定。 此垫圈有助于减振。 安装 ECM 时,请务必使用橡胶垫圈。



    图 3g00922543

  1. 将 ECM (4)放在安装位置。 安装螺栓 (3)。


    图 4g01052439

  2. 连接燃油软管组件 (1)。

    注: 装好螺栓和燃油软管组件后,ECM 应该能够轻微移动。 如果 ECM 无法轻微移动的话,检查燃油软管组件是否将 ECM 拉紧,使其无法移到垫圈的另一侧。

  3. 连接线束组件 (2)。

  4. 将钥匙开关转到 ON 位置。

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