C7 Engines for Caterpillar Built Machines Caterpillar


Crankshaft - Install

Usage:

584HD 109

安装步骤

表 1
所需工具    
工具     零件号     零件说明     数量    
A     8T-5096     千分表总成     1    


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。


    注: 6 号主轴承为止推轴承。

  1. 清洁缸体上与主轴承配合的轴承表面。 将清洁的发动机机油涂抹在上主轴瓦上。 不要将清洁的发动机机油涂抹在轴承表面的背面。 将上主轴瓦安装在缸体中。 确保轴承背面的凸舌接合在缸体的凹槽中。



    图 1g01128041

  1. 将清洁的发动机机油涂抹在曲轴轴承的轴颈上。 将合适的起吊设备连接到曲轴 (1) 。 曲轴 (1) 的重量约为 62 kg (137 lb)。 对准齿轮系上的识别标记。 将曲轴 (1) 安装在缸体中。

  1. 清洁主轴承盖 (3) 的轴承表面。 将下主轴瓦安装在主轴承盖中。 确保轴承背面的凸舌接合在主轴承盖的凹槽中。 将清洁的发动机机油涂抹在下主轴瓦上。 不要将清洁的发动机机油涂抹在轴承表面的背面。

  1. 安装主轴承盖 (3) ,零件号朝向缸体右侧。 确保主轴承盖的编号为 1 到 7。 编号应从发动机前部开始。 将清洁的发动机机油或含钼润滑油涂抹到螺栓螺纹和垫圈上。

    注: 紧固后主轴承盖的螺栓时,尽可能远地朝前滑动主轴承盖,使盖与螺栓相抵。 将主轴承盖固定在位并拧紧螺栓。

  1. 将螺栓 (2) 安装到主轴承盖 (3) 上。 用 54 ± 7 N·m (40 ± 5 lb ft) 的扭矩拧紧螺栓 (2) 。

  1. 将螺栓 (2) 再转动 90 ± 5度(1/4圈)。

  1. 用工具 (A) 检查曲轴 (1) 的端隙。 端隙必须在 0.07 mm 至 0.32 mm (0.003 in 至 0.013 in) 之间。

End By:

  1. 安装飞轮壳。 请参阅 拆解和组装, "飞轮壳体 - 拆卸和安装"。
  2. 安装前壳体。 请参阅 拆解和组装, "壳体(前) - 安装"。
  3. 安装连杆轴承。 请参阅 拆解和组装, "连杆轴承 - 安装"。

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