C7.1 Engines Caterpillar


Rocker Shaft and Pushrod - Install

Usage:

525D 2L5

安装步骤

表 1
所需工具 
工具  零件号  零件描述  数量 
235-0032  气门间隙仪表总成 
298-5564  T40 Torx 套筒 


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. 清洁气门桥。 检查气门桥有无磨损或损坏。 更换所有损坏或磨损的气门桥。


    图 1g03412377

  2. 用清洁的发动机机油润滑气门桥 (4)。


    图 2g03412379


    注意

    如未能将所有阀桥正确安装至阀杆上,将导致活塞和阀门间产生干扰,从而损坏发动机。


  3. 将气门桥 (4) 安装到缸盖上。

    注: 将旧气门桥安装在原来的位置和朝向。 确保气门桥正确座入气门。 新气门桥可以安装为任意朝向。

    为便于显示,没有显示电子单体喷油器。

  4. 清洁推杆。 检查推杆有无磨损或损坏。 更换任何磨损或损坏的推杆。

  5. 使用清洁的发动机机油润滑推杆 (3) 的两端。 将推杆的杯口朝上安装到发动机上。

    注: 确保已将推杆 (3) 安装到原来的位置,并且每个推杆的球端都在气门挺杆中正确就座。



    图 3g01340040


    图 4g01340044


    图 5g03373790
    摇臂轴拧紧顺序

  6. 确保摇臂轴组件清洁且无磨损或损坏。 将 torx 螺钉 (1) 安装到摇臂轴上。

  7. 将摇臂轴组件 (2) 安置在缸盖上。 固定夹 (6) 应面向发动机前部。

    注: 确保调节螺钉 (5) 正确座入推杆 (3) 两端。

  8. 逐步拧紧 torx 螺钉 (1)。 为避免摇臂轴组件 (2) 变形,按图 5 所示的顺序拧紧 torx 螺钉。

    拧紧 torx 螺钉 (1) 至扭矩为 35 N·m (26 lb ft)



    图 6g01340045

  9. 使用工具 (A) 检查气门间隙。 请参阅系统操作、测试和调整发动机气门间隙, " - 检查 / 调整"。

  10. 必要时,使用工具 (A) 和工具 (B) 调整气门间隙。 请参阅系统操作、测试和调整, "发动机气门间隙 - 检查 / 调整"以了解正确程序。

结束:

  1. 安装气门机构盖。 请参考拆解和组装, "气门机构盖 - 拆卸和安装"以了解正确步骤。

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