C7 Engines for Caterpillar Built Machines Caterpillar


Crankshaft Main Bearings - 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     2P-5518     主轴承工具     1    
B     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: 进行间隙检查之后,安装曲轴主轴承并保持其干燥。 请参阅拆解与组装, "轴承间隙 – 检查"。 将清洁的发动机机油涂抹在曲轴主轴承上,以便于最终组装。

注: 确保曲轴主轴承背面的锁键适合曲轴主轴承盖和缸体的凹槽。




    图 1g00988318

  1. 使用工具 (A) ,在缸体中安装曲轴主轴承的上半部分。 不要将机油涂抹到曲轴主轴承的背面。



    图 2g00988316

  1. 在曲轴主轴承盖 (2) 中安装曲轴主轴承的下半部分。 不要将机油涂抹到曲轴主轴承的背面。


    注意

    曲轴主轴盖安装时,应使零件号朝向发动机右侧。 曲轴主轴盖通过位于底部表面的冲压号码 1 到 7 进行识别。 止推板仅用于 6 号曲轴主轴承上。


  1. 在缸体上安放主轴承盖 (2) 到位。 将清洁的发动机机油或 Molylube 涂抹到螺栓螺纹和垫圈表面。 安装螺栓 (1) 。

  1. 用 54 ± 7 N·m (40 ± 5 lb ft)的扭矩拧紧螺栓 (1) 。 拧紧各个螺栓 (1) 额外 90 ± 5 度(1/4 圈)。

  1. 利用工具 (B) 检查曲轴的轴向间隙。 轴向间隙必须为 0.07 至 0.32 mm (0.003 至 0.013 in)。

End By: 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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