3176C and 3196 Engines For Caterpillar Built Machines Caterpillar


Valve Mechanism Cover - Remove and Install

Usage:

140H 126

拆卸步骤


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。



注意

在进行检验、保养、测试、调整及维修产品期间,必须小心以确保装好排放出的油液。 在打开任何舱室或解体任何储有液体的部件之前,要准备好合适的容器收集液体。

有关收集和盛接 Cat 产品上油液的适用工具和用品,请参阅专门出版物, NENG2500, "代理商维修工具目录"。

按照当地法规和要求处置所有液体。




    图 1g01021932

  1. 拆除将线束组件夹子固定到气门盖底座上的螺栓和垫圈。

  2. 移开夹子和线束组件。

  3. 拆下螺栓 (1) 和垫圈。

    注: 在装备有压缩制动器的发动机上使用隔套 (4)。

  4. 从气缸盖上拆下下列项:气门盖 (2), 隔套 (4) 和 密封件 (3)。

安装步骤

表 1
所需工具 
工具  零件号  零件描述  数量 
3S-6252  密封胶 


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 2g01021932


    图 3g00280493
    拧紧顺序

  1. 将密封件 (3) 切割成适合于气门盖和隔套的正确长度。 安装后在各个接合面上采用工具 (A)。

  2. 将下列项放在气门盖底座上:密封件 (3), 隔套 (4) 和 气门盖 (2)。

  3. 将线束组件夹子放在气门盖上。

  4. 安装螺栓 (1) 和垫圈。 按照以下步骤拧紧螺栓:

    1. 按照数字顺序依次拧紧螺栓到扭矩 12 ± 3 N·m (9 ± 2 lb ft)

    2. 按照数字顺序再次依次拧紧螺栓到扭矩 12 ± 3 N·m (9 ± 2 lb ft)

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