3408E and 3412E Engines for Caterpillar Built Machines Caterpillar


Housing (Front) - Install

Usage:

769C 01X

安装步骤

表 1
所需工具 
工具  零件号  零件描述  数量 
138-7573  连杆支架 
8T-9022  硅胶密封垫 


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。




    图 1g00553982

  1. 前壳体 (4) 后部和缸体前部应在安装前壳体前彻底清洁。

  2. 将新垫片安装在缸体上。

  3. 将工具 (B) 涂抹到缸体的共用接点、前壳体和油底壳上。

  4. 将工具 (A) 和适当的起吊设备连接到前壳体 (4) 上。 前壳体 (4) 的重量约为 34 kg (75 lb)

  5. 将前壳体 (4) 安装到缸体上。

  6. 安装螺栓 (5)。

  7. 安装螺母 (6)。

  8. 将工具 (A) 从前壳体 (4) 上拆下。


    图 2g00553958


    图 3g00555906

    注: 当 1 号活塞位于上止点时,可以对齐前齿轮总成上的正时标记。 将齿轮 (1) 上的正时标记与凸轮轴齿轮上的标记对准。 图 3 显示了正时标记的对准。

  9. 安装齿轮 (1) 和挡板 (3)。

  10. 安装螺栓 (2)。 拧紧螺栓至扭矩 135 ± 20 N·m (100 ± 15 lb ft)

结束:

  1. 安装转速/正时传感器。 请参阅拆解和组装, "转速/正时传感器 - 拆卸和安装"。

  2. 安装前盖。 请参阅拆解和组装, "前盖 - 安装"。

  3. 安装曲轴前油封。 请参阅拆解和组装, "曲轴前密封 - 安装"。

  4. 安装水泵。 请参阅拆解和组装, "水泵 - 安装"。

  5. 安装发动机油底壳。 请参阅拆解和组装, "发动机油底壳 - 拆卸和安装"。

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