C4.4 Engines for Caterpillar Built Machines Caterpillar


Crankshaft Rear Seal - Install

Usage:

C4.4 2W2

安装步骤

表 1
所需工具 
工具  零件号  零件描述  数量 
227-4390  E12 Torx 套筒 
FT-2806  定位工具 

注: 曲轴后油封和壳体是以一个组件制造的。


注意

保持所有零件清洁无杂质。

杂质会造成快速磨损和缩短部件寿命。




    图 1g03413500


    图 2g03364097

  1. 确保曲轴法兰 (1) 清洁、干燥、无损坏。 用不起毛的布清洁曲轴法兰。

  2. 确保缸体和桥接件的表面清洁、干燥。

  3. 提供的新曲轴后油封带有一个塑料套管 (3)。 确保安装时塑料套管的四个角在曲轴后油封 (2) 以内。

    注: 提供塑料套管是为了在把油封推过曲轴法兰时保护油封唇。

    注: 请勿润滑曲轴后密封或曲轴法兰。 曲轴后油封在安装时必须干躁。

  4. 对齐塑料套管 (3) 与曲轴法兰 (1)。 确保塑料套管在曲轴法兰上啮合。 将新曲轴后油封 (2) 的四角推到曲轴法兰上。

    在这个操作过程中,会把塑料套管压出曲轴后油封。 弃置塑料套管。

  5. 将曲轴后油封 (2) 上的两个模压定位件与缸体中的孔对齐。 确保曲轴后密封抵在缸体上就座。

    曲轴后油封拧紧顺序



    图 3g03364098

  6. 安装 torx 螺钉 (4),用手拧紧。

    注: 此时不要将 torx 螺钉安装到部位 (X) 处。

  7. 将工具 (B) 安装到曲轴后油封 (2) 及曲轴法兰 (1) 上。

  8. 使用工具 (A) 拧紧 torx 螺钉 (4) 至扭矩为 22 N·m (195 lb in)。 按照图 3 中所示的顺序拧紧 torx 螺钉 (4)。

  9. 拆下工具 (B)。

  10. 将其余的 torx 螺钉 (4) 安装到位置 (X) 处。 使用工具 (A) 拧紧 torx 螺钉至扭矩为 22 N·m (195 lb in)。 参考图 3。

结束:

  1. 安装飞轮。 请参阅拆解和组装, "飞轮 - 安装"。

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