3176C and 3196 Engines For Caterpillar Built Machines Caterpillar


Crankshaft - Install

Usage:

140H 126

安装步骤

表 1
所需工具 
工具  零件号  零件描述  数量 
8T-5096  千分表总成 


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。



    注意

    确保曲轴主轴承锁片与缸体和曲轴主轴承盖中的槽相互啮合。




    图 1g01022781

  1. 将曲轴主轴承 (3) 的上半部分定位到缸体中。 将曲轴主轴承 (3) 的下轴瓦放到主轴承盖中。

  2. 将适当的起吊设备拧紧在曲轴上并且将曲轴放在缸体中。 曲轴的重量约为 129 kg (285 lb)

  3. 安装曲轴止推轴承 (4)。


    图 2g01022767

  4. 安装曲轴主轴承盖 (2) ,零件号朝向缸体右侧。 确保曲轴主轴承盖 (2) 的编号为 1 到 7。 编号应从发动机前部开始。 将清洁的机油或 Molylube 涂抹到螺栓螺纹和垫圈上。 安装螺栓 (1)。 将螺栓上紧到 95 ± 5 N·m (70 ± 4 lb ft) 的扭矩。

  5. 在每个螺栓头上标上标记。 将螺栓再转动 90 ± 5度(1/4圈)。

  6. 用工具 (A) 检查曲轴的端隙。 端隙必须为 0.10 mm (0.004 in)0.50 mm (0.020 in)

结束:

  1. 安装活塞和连杆。 请参阅拆解和组装, "活塞和连杆 - 安装"。

  2. 安装飞轮壳体。 请参阅拆解和组装, "飞轮壳体 - 拆卸和安装"。

  3. 安装前壳体。 请参阅拆解和组装, "壳体(前) - 安装"。

  4. 安装发动机机油泵。 请参阅拆解和组装, "发动机机油泵 - 安装"。

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