C32 Marine Engines Caterpillar


Pistons and Connecting Rods - Install

Usage:

C32 AX2

安装步骤

表 1
所需工具 
工具  零件号  零件描述  数量 
9S-9082  发动机盘车工具 
5P-3526(1)  活塞环压缩器 
200-3914(2) 活塞环压缩器 
8T-3052  度数轮 
(1) 137 mm (5.4 inch) 孔一起使用。
(2) 145 mm (5.7 inch) 孔一起使用。


注意

保持所有零件清洁无杂质。

杂质会造成快速磨损並縮短部件使用寿命。


注: 当间隙检查完成后,安装连杆轴承,并保持干燥。 请参阅拆解与组装, "轴承间隙 – 检查"。 为了便于最终组装,在连杆轴承上涂抹清洁的发动机机油。

  1. 将清洁的发动机机油涂抹在缸套孔、活塞环,以及活塞外表面上。

    注: 确保将连杆和活塞安装进正确气缸中。



    图 1g01149650

  2. 使用工具 (A) 转动曲轴直到连杆轴颈位于底部中央位置。

  3. 使用工具 (B) 将活塞 (3) 和连杆装进缸套。

    注: 安装连杆,以使轴承凸舌位于与活塞冷却喷嘴相对的一侧。

  4. 将连杆轴承上轴瓦安装到连杆中。

    注: 确保安装连杆轴承时使轴承凸舌卡进连杆凹槽中。

  5. 把连杆拉到曲轴轴颈上。

  6. 将连杆轴承下轴瓦安装进连杆轴承盖中。

    注: 确保安装连杆轴承时使轴承凸舌卡进连杆凹槽中。



    图 2g01149651

  7. 将连杆轴承盖 (2) 安置在连杆上。

    注: 确保连杆轴承盖一侧的数字和连杆上的数字在同一侧。 连杆轴承盖上的轴承凸舌和连杆都位于活塞冷却喷嘴的相对一侧。

  8. 使用清洁的发动机机油润滑螺栓 (1) 的螺纹。 安装螺栓。

  9. 按照以下步骤拧紧螺栓 (1):

    1. 拧紧螺栓 (A) 和螺栓 (C) 至扭矩为 70 ± 4 N·m (52 ± 3 lb ft)

    2. 拧紧螺栓 (B) 和螺栓 (D) 至扭矩为 70 ± 4 N·m (52 ± 3 lb ft)

    3. 把螺栓 (B) 和螺栓 (D) 再拧紧 60 ± 5 度(1/6 圈)。

      注: 如果没有使用工具 (C),请为每个螺栓做上索引标记。

    4. 再次拧紧螺栓 (A) 和螺栓 (C) 至扭矩为 70 ± 4 N·m (52 ± 3 lb ft)

    5. 再拧紧螺栓 (A) 和螺栓 (C) 60 ± 5 度(1/6 圈)。

      注: 如果没有使用工具 (C),请为每个螺栓做上索引标记。

    6. 转动曲轴,以便确保曲轴能转动自如。

结束:

  1. 安装活塞冷却喷嘴。 请参阅拆解和组装, "活塞冷却喷嘴 - 拆卸和安装"。

  2. 安装缸盖。 请参阅拆解和组装, "缸盖 - 安装"。

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