C15 and C18 Engines for Caterpillar Built Machines Caterpillar


Rocker Arm and Shaft - Remove and Install

Usage:

826K 232

拆卸步骤

表 1
所需工具 
工具  零件号  零件描述  数量 
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开始:

  1. 拆下可变气门执行器。


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 1g03857624

    ------ WARNING! ------

    螺栓拆下之后,气门摇臂和单体喷油器摇臂应该可以在轴上移动。 从缸盖上拆下时,应保持轴水平。 为了避免可能的人身伤害,当把组件从缸盖上抬起时,保持手指远离气门摇臂和单体喷油器摇臂。


  1. 拆下螺栓 (2 )。

  2. 使用工具 (A) 将摇臂轴组件 (4)、气门摇臂 (3) 和电子单体喷油器摇臂 (1) 作为一个整体拆下。

安装步骤


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 2g03857616


    图 3g03857618

    ------ WARNING! ------

    螺栓拆下之后,气门摇臂和单体喷油器摇臂应该可以在轴上移动。 从缸盖上拆下时,应保持轴水平。 为了避免可能的人身伤害,当把组件从缸盖上抬起时,保持手指远离气门摇臂和单体喷油器摇臂。


  1. 用工具 (A) 把摇臂轴组件 (4)、气门摇臂 (3) 以及电子单体喷油器摇臂 (1) 作为一个整体安置到缸盖上。

    注: 安装之前,将清洁的发动机机油涂抹在螺栓头的下部。

  2. 安装螺栓 (2) 并按以下次序拧紧:2、3、1、4 至扭矩值 55 ± 5 N·m (41 ± 4 lb ft)。 再以同样次序拧紧螺栓 (2) 至扭矩值 55 ± 5 N·m (41 ± 4 lb ft)。 以同样次序再转动螺栓 (2) 60 ± 5 度。

  3. 调整电子单体喷油器。 请参阅测试和调整, "电子单体喷油器 - 调整"。

  4. 调整发动机气门间隙。 请参阅测试和调整, "发动机气门间隙 - 检查/调整"。

结束:

  1. 安装可变气门执行器。

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