C4.4 Engines for Caterpillar Built Machines Caterpillar


Lifter Group - Remove and Install

Usage:

C4.4 2W2

拆卸步骤

表 1
所需工具 
工具  零件号  零件描述  数量 
9U-6198  曲轴转动工具 
1U-7262  伸缩磁铁 

开始:

  1. 如果发动机配备平衡器,则卸下该平衡器。 请参阅拆解和组装, "平衡器 - 拆卸"。 如果发动机未配备平衡器,则卸下发动机机油泵。 请参阅拆解和组装, "发动机油泵 - 拆卸和安装"。

  2. 拆下凸轮轴。 请参阅拆解和组装, "凸轮轴 - 拆卸和安装"。


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. 如果安装了曲轴,使用工具 (A) 转动曲轴,以便进入挺杆。


    图 1g01476632
    典型示例

  2. 使用工具 (B) 拆卸挺杆 (1)。

    注: 在各挺杆上作临时识别标记,以确定正确位置。

  3. 重复步骤 1 至步骤 2 卸下其余的挺杆。

安装步骤

表 2
所需工具 
工具  零件号  零件描述  数量 
9U-6198  曲轴转动工具 
1U-7262  伸缩磁铁 


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。



注意

强烈推荐应在安装新凸轮轴时更换所有的挺杆。


  1. 清洁挺杆。 遵循步骤 1.a 至步骤1.c 检查挺杆。 更换已磨损或损坏的挺杆。

    1. 检查挺杆中的推杆座有无可见的磨损或损坏。

    2. 检查挺杆柄有无磨损或损坏。 更多信息请参阅技术参数, "挺杆总成"。

    3. 检查挺杆接触凸轮轴的表面有无可见的磨损或损坏。

  2. 如果安装了曲轴,使用工具 (A),转动曲轴。 转动曲轴,以便靠近缸体来安装挺杆 (1)。

  3. 使用清洁的发动机机油润滑挺杆 (1)。


    图 2g01476632
    典型示例

  4. 使用工具 (B) 将挺杆 (1) 安装到缸体上。 确保旧挺杆安装位置正确。

    注: 挺杆应能自由转动。

  5. 重复步骤 1 到步骤 4,安装其余的挺杆。

结束:

  1. 安装凸轮轴。 请参阅拆解和组装, "凸轮轴 - 拆卸和安装"。

  2. 如果发动机配备平衡器,则安装该平衡器。 请参阅拆解和组装, "平衡器 - 安装"。 如果发动机未配备平衡器,则安装发动机机油泵。 请参阅拆解和组装, "发动机油泵 - 拆卸和安装"。

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