C15 and C18 Engines for Caterpillar Built Machines Caterpillar


Pistons and Connecting Rods - Install

Usage:

631E 1AB

安装步骤

表 1
所需工具    
工具     零件号     零件说明     数量    
A     9S-9082     发动机盘车工具     1    
B     5P-3526 (1)     活塞环压缩器     1    
200-3914 (2) 活塞环压缩器     1    
C     8T-3052     度数轮     1    
( 1 ) 用于 137 mm (5.4 in) 的孔。
( 2 ) 用于 145 mm (5.7 in) 的孔。


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: 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 1g01048560

  1. 使用工具 (A) 转动曲轴直到连杆轴颈位于底部中央位置。

  1. 使用工具 (B) 将活塞 (3) 和连杆装进缸套。

    注: 安装连杆,以使轴承凸舌位于活塞冷却喷嘴一侧。

  1. 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入连杆凹槽中。

  1. 把连杆拉到曲轴轴颈上。

  1. 将连杆轴承的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入连杆凹槽中。




    图 2g01016640

  1. 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接杆上的数字在同一侧。 连杆轴承盖及连杆上的轴承凸舌都位于活塞冷却喷嘴侧。

  1. 使用清洁的发动机机油润滑螺栓 (1) 的螺纹。 安装螺栓。

  1. 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)。

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

    1. 将螺栓 (B) 和 (D) 再次旋转 60 ± 5 度(1/6 圈)。

      注: 如果没有使用工具 (C) ,请为每个螺栓作指示标记。

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

    1. 将螺栓 (A) 和 (C) 再次旋转 60 ± 5 度(1/6 圈)。

      注: 如果没有使用工具 (C) ,请为每个螺栓作指示标记。

    1. 转动曲轴,以便确保曲轴能转动自如。

End By:

  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. 安装发动机机油泵。 请参阅 拆解和组装, "发动机机油泵 - 安装"。
  3. 安装缸盖。 请参阅 拆解和组装, "缸盖 - 安装"。

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