C15 and C18 Engines for Caterpillar Built Machines Caterpillar


Pistons and Connecting Rods - Assemble

Usage:

826K 232

组装步骤

表 1
所需工具 
工具  零件号  零件描述  数量 
6V-6192  挡圈钳 
7M-3978  活塞环扩张器总成 
5P-8639  液压 (连杆轴承) 
8F-0024 软管组件 
1P-2375 连接器 
1P-2376 连接器 
5P-8651 隔套 
5P-8649 适配器 
5P-8650 衬套接头 
9U-6600 液压泵 

注: 从发动机上拆下之前,活塞和连杆组件上已经做了标记。 所有的部件必须重新组装在一起。 所有部件必须安装回它们在发动机中原来的位置。 请勿互换任何部件。


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。




    图 1g01018268


    图 2g01017742

  1. 使用工具 (C) 拆掉旧轴承,同时安装新轴承 (7)。 工具 (C) 的适配器应与连杆 (6) 的表面充分接触。

    注: 调整轴承接头两端的方向在位置 (X) ± 5 度范围内。


      注意

      在安装活塞销子轴承的时候,必须对连杆进行加热处理。 不要使用明火加热。


    1. 沿长度 (Y) 加热连杆 (6)。

      (Y) 加热连杆的最大长度 ... 93 mm (3.7 in)

    2. 让连杆和轴承冷却到室温。

  2. 用销膛磨机加工轴承孔 (7),以修正直径。

    轴承孔直径 ... 60.035 ± 0.008 mm (2.36360 ± 0.00030 in)



    图 3g01017728

  3. 将控油环的弹簧放置在活塞体组件中的油环槽中。

  4. 将控油环 (3) 安置在弹簧的上方。 放置控油环,使其开口与弹簧接头成 180 度。 使用工具 (B) 将控油环安装在活塞上。

  5. 使用工具 (B) 安装中间活塞环 (2),使有 “UP-2” 标记的一侧朝向活塞顶部。

  6. 使用工具 (B) 安装顶部活塞环 (1),使有 “UP-1” 标记的一侧朝向活塞顶部。

  7. 安置活塞环 (1)、 (2) 和 (3),使其开口之间互成120度。

  8. 检查活塞环 (1)、 (2) 和 (3) 底部之间的间隙。 关于技术规格,请参阅技术规格手册, "活塞和活塞环"。

  9. 将活塞体组件 (4) 在连杆 (6) 上安置到位。 将清洁的发动机机油涂抹在连杆销 (8) 上,并安装连杆销 (8)。 使用工具 (A) 安装销固定器 (5)。 确保销固定器 (5) 完全落座在活塞体组件 (4) 的槽中,

  10. 将连杆轴承 (9) 安装在连杆 (6) 和连杆盖 (10) 上。 确保安装连杆轴承 (9) 时轴承凸舌卡入连杆 (6) 和连杆盖 (10) 中的凹槽。

  11. 确保定位销已安装到连杆盖 (10) 中。

结束:

  1. 安装活塞和连杆。

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