C3.3B Engines for Caterpillar Built Machines Caterpillar


Crankshaft and Main Bearings - Install

Usage:

236D BGZ

安装步骤

表 1
所需工具 
工具  零件号  零件描述  数量 
129-1967  多功能白色润滑脂 
1U-8846  密封垫密封胶 

注: 参考技术规格, "发动机设计",了解非指定的发动机扭矩值。

注: 间隙检查完成后,先不要涂覆机油,安装主轴承。

注: 安装曲轴主轴承上半部分和下半部分,使轴承凸舌接头处于曲轴主轴承壳体的槽中。



    图 1g02802437

  1. 将主轴承 (6) 的下半部分装入下部缸体 (11) 中。


    图 2g02802433

  2. 安装止推轴承 (10) 的下半部分。 将工具 (A) 涂覆到主轴承 (11) 上。


    图 3g02802435

    注: 如果安装新曲轴,必须完成正时调整步骤。 参考测试和调整, "正时调整"。

  3. 使用合适的起吊设备并将曲轴 (1) 装入下部缸体中。


    图 4g02802431

  4. 将两个上半部分止推轴承 (9) 装入曲轴 (1) 的齿轮端。


    图 5g02865838


    图 6g02802426

  5. 将上部主轴承 (8) 装入上部缸体 (7) 中。

  6. 将工具 (B) 涂覆到下部缸体 (6) 的配合面上。

  7. 使用合适的起吊设备,将上部缸体 (7) 安装到曲轴 (1) 和下部缸体 (6) 上。


    图 7g02866178

  8. 在螺栓上涂抹干净的发动机机油。 安装螺栓 (5) 并拧紧至 138.0 to 147.0 N·m (102 to 108 lb ft)

  9. 安装螺栓 (4) 并拧紧至 59.0 to 63.0 N·m (44 to 46 lb ft)


    图 8g02802423

  10. 将连杆盖 (2) 安装到曲轴 (1) 上。 将清洁的发动机机油涂抹到螺栓 (3) 上,然后安装螺栓 (3)。 拧紧螺栓 (3) 至扭矩为 69 to 73 N·m (51 to 54 lb ft)

    注: 请参阅可再用零件指南, SEBV0544, "发动机轴承和曲轴",获取关于轴承间隙测量的完整资料。

结束:

  1. 安装前壳体。

  2. 安装飞轮壳体。

  3. 安装油底壳。

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