C4.4 Engines for Caterpillar Built Machines Caterpillar


Exhaust Manifold - Remove and Install - Top Mounted Exhaust Manifold

Usage:

C4.4 2W2

拆卸步骤

  1. 将所有软管、管组件和导线从涡轮增压器上拆下。 更多信息请参阅拆解和组装, "涡轮增压器 - 拆卸"。


    图 1g01245092
    典型示例


    图 2g01789673
    排气歧管紧固顺序

  2. 按照图 2 中所示数字从大到小的顺序松开螺栓 (4)。

    注: 按相反的数字顺序松开螺栓将有助于防止排气歧管变形。

  3. 从排气歧管 (3) 上卸下螺栓 (4)。

    注: 在螺栓拆卸过程中,支撑歧管。

  4. 拆下排气歧管组件 (3) 和涡轮增压器。

  5. 卸下排气歧管密封垫 (1)。

  6. 将涡轮增压器从排气歧管 (3) 上卸下。 更多信息请参阅拆解和组装, "涡轮增压器 - 拆卸"。

  7. 如有必要,将螺柱 (2) 从排气歧管 (3) 上拆下。

安装步骤(顶装式排气歧管)

表 1
所需工具 
工具  零件号  零件描述  数量 
A  导向螺柱
M10 × 100 mm 


    图 3g01245092
    典型示例

  1. 确保排气歧管清洁且无损坏。 如有必要,更换排气歧管。 清洁缸盖的密封垫表面。

  2. 如有必要,将螺柱 (2) 安装到排气歧管 (3) 上。 拧紧螺柱至扭矩为 18 N·m (13 lb ft)


    图 4g01789677
    排气歧管紧固顺序

  3. 将工具 (A) 安装到缸盖的位置 (X)。 参考图 4。

  4. 将新排气歧管密封垫 (1) 放置在工具 (A) 上。

    注: 确保排气歧管垫片的方向正确。

  5. 将涡轮增压器机油排放管组件安装到缸体中。 更多信息请参阅拆解和组装, "涡轮增压器 - 安装"。

  6. 对准排气歧管 (3) 与工具 (A)。 将排气歧管安装到缸盖上。

  7. 用手安装并拧紧新螺栓 (4)。

  8. 拆下工具 (A)。 安装其余的螺栓 (4),用手拧紧。

  9. 按照图 4 所示的顺序,拧紧螺栓 (4) 至扭矩为 40 N·m (30 lb ft)

结束:

  1. 安装涡轮增压器。 请参阅拆解和组装, "涡轮增压器 - 安装"。

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