3500 Engines Caterpillar


Electronic Control Module (Engine) - Remove and Install

Usage:

3516C 9F4

拆卸步骤


注意

保持所有零件清洁无杂质。

杂质会造成快速磨损並縮短部件使用寿命。


    注: 如果正在更换电子控制模块(ECM),先下载个性模块,然后再拆下 ECM。 请参阅故障诊断与排除, "更换 ECM"。

  1. 断开蓄电池处的蓄电池负极接线端。


    图 1g01118581

  2. 松开六角头固定螺钉 (3),并将线束组件从电子控制模块 (2)上断开。

  3. 断开接地电缆带 (6)。

  4. 拆下螺栓 (1)。 拆下电子控制模块 (2)。

  5. 如有必要,拆下螺栓 (4) 和支架 (5)。 拆下密封垫 (7)。

安装步骤



    图 2g01118581

  1. 安装密封垫 (7)和支架 (5)。 安装螺栓 (4)。

  2. 定位电子控制模块 (2),然后安装螺栓 (1)。

  3. 连接接地电缆带 (6) 并拧紧至扭矩为 2.50 ± 0.25 N·m (22 ± 2 lb in)

  4. 将线束组件固定到电子控制模块,然后将六角头固定螺钉 (3)拧紧至扭矩 6 ± 1 N·m (53 ± 9 lb in)

  5. 连接蓄电池处的蓄电池负极接线端。

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