3064 and 3066 Engines for Caterpillar Built Machines Caterpillar


Pistons and Connecting Rods - Remove

Usage:

320B L 1ES

拆卸步骤

表 1
所需工具 
工具  零件号  零件名称  数量 
A  8S-2269  缸口铰刀 
B  6V-9120  套筒(1)  
(1) 工具 (B) 是一个 46 mm 的套筒。

开始:

  1. 拆下缸盖。 请参阅拆解和组装, "缸盖 - 拆卸"。

  2. 拆下发动机油底壳。 请参阅拆解和组装, "发动机油底壳 - 拆卸和安装"。

  3. 拆下机油供油管。 请参阅拆解和组装, "曲轴 - 拆卸"。


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。


  1. 使用工具 (A) 从缸套内表面除去磨损毛刺。

  2. 将发动机旋转 90 度。


    图 1g00534937

  3. 使用工具 (B) 旋转曲轴,直到两个活塞位于底部中央位置。 从连杆上拆下四个连杆螺母 (1)。 拆下两个连杆盖 (2)。 在连杆、连杆盖和连杆轴承上作出识别标记。 为了便于安装,识别标记必须在轴承凸舌侧。


    图 2g00534943

    注: 使用胶带或橡胶管遮盖连杆螺栓,以保护曲轴轴颈。 连杆螺栓的锋利边缘会损坏曲轴轴颈的表面。

  4. 将活塞和连杆 (4) 推离曲轴,直到活塞环从缸套中脱出。 从缸体 (3) 上拆下活塞。

  5. 保证连杆和连杆盖不分开。 在每个活塞上作出识别标记,以确定活塞在缸体中的位置。

  6. 对其余的活塞和连杆重复第 1 至 5 步。

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