C9 Engine For Caterpillar Built Machines Caterpillar


Crankshaft Main Bearings - Install

Usage:

TK711 101

安装步骤

表 1
所需工具 
工具  零件号  零件说明  数量 
2P-5518  轴承工具 
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: 组装之前,在曲轴主轴承上涂上清洁的发动机机油。 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 1g01153704

  1. 使用工具 (A),在缸体中安装曲轴主轴承的上半部分。 不要用机油涂抹曲轴主轴承背面。

  2. 在曲轴主轴承盖 (2) 中安装曲轴主轴承的下半部分。 不要用机油涂抹曲轴主轴承背面。


    注意

    安装曲轴主轴承盖时零件号应朝向发动机前部。 可以通过轴承盖底面上压印的编号 1 到 7 来识别曲轴主轴承盖。 止推板用在 6 号主轴承上。


  3. 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)。

  4. 拧紧螺栓 (1) 到扭矩 95 ± 5 N·m (70 ± 4 lb ft)。 拧紧各个螺栓 (1) 额外 90 ± 5 度(1/4 圈)。

  5. 利用工具 (B) 检查曲轴的端隙。 端隙必须在 0.21 - 0.60 mm (0.008 - 0.024 in) 之间。

结束:

  1. 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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