3500 Engines Caterpillar


Crankshaft - Remove

Usage:

3516C 9F4

拆卸步骤

表 1
所需工具 
工具  零件号  零件描述  数量 
4C-9832  发动机翻转支架 
138-7576  连杆支架 

开始:

  1. 拆卸摇臂轴组件和推杆。 请参阅拆解和组装, "摇臂轴和推杆 - 拆卸"。

  2. 拆下飞轮壳体。 请参阅拆解和组装, "飞轮壳体 - 拆卸"。

  3. 拆卸前壳体。 请参阅拆解和组装, "壳体(前) - 拆卸"。

  4. 拆下活塞冷却喷嘴。 请参阅拆解和组装, "活塞冷却喷嘴 - 拆卸和安装"。


注意

当活塞和连杆被推离轴箱时,没有拆卸摇臂轴组件和推杆可能会损坏气门。

为避免损坏气门,拆卸曲轴前拆卸摇臂轴组件和推杆。



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。


  1. 使用工具 (A) 将发动机转到水平位置。 发动机可用工具 (A) 或挡块支撑。 3516C 发动机的重量约为 9100 kg (20000 lb)

    注: 如果从发动机上拆卸活塞和连杆组件,则没必要从曲轴上拆卸配重。



    图 1g01124519

  2. 在配重 (2) 上贴上标记。 从曲轴上拆下螺栓 (1) 和配重 (2)。

    注: 切勿重复使用螺栓 (1)。 用新的螺栓将配重固定到曲轴。



    图 2g01124522

    注: 出于安装目的,对连杆盖和连杆进行编号。

  3. 拆下螺栓 (3 )。 拆卸连杆盖 (4) 并将连杆从曲轴中推出。

    注: 确保曲轴上的轴径没有被连杆擦伤。



    图 3g01124538

  4. 在曲轴 (7) 的每一端都连上工具 (B)。 将适当的起吊设备连接在工具 (B) 上。 3516C 曲轴的重量约为 800 kg (1765 lb)

  5. 拆下螺栓 (5) 和主轴承盖 (6)。

  6. 从中心主轴承两侧卸下止推盘 (8)。

  7. 将曲轴 (7) 从缸体上拆下。

  8. 将主轴承上轴瓦从缸体上拆下。

  9. 从连杆上拆下连杆轴承上轴瓦。


    图 4g01124543

  10. 如有必要,从曲轴的每一端拆卸螺栓 (9) 和曲轴齿轮 (10)。

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