C15 and C18 Engines for Caterpillar Built Machines Caterpillar


Exhaust Manifold - 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 
361-5661  波纹管工具组件 
2P-2333  高温密封胶 
LOCTITE C5-A 铜防粘结剂 
165-4638  导管 

开始:

  1. 拆下涡轮增压器。

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

高温发动机部件可能导致灼伤。 进行发动机保养之前让发动机和部件冷却下来。



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 1g02494237

    ------ CAUTION! ------

    波纹管的末端很锋利。 如果波纹管处理不妥当,可能会发生伤害。 通过波纹部位拿住波纹管。


  1. 拆下卡箍组件 (2) 后将管组件 (1) 放到一旁。

  2. 拆下螺栓 (3) 后拆下隔热罩组件 (4)。

  3. 拆卸管组件 (5)。

    注: 有关更多处理波纹管的信息,请参阅专门说明书, REHS1728, "波纹管应用指南"。

  4. 拆下卡箍组件 (6)。 使用工具 (A) 拆下波纹管 (7)。 废弃卡箍和波纹管。

  5. 拆下螺栓 (8) 和 (10)。 拆卸管组件 (9)。


    图 2g02824658

  6. 拆下螺母 (11) 和隔套。 拆下双头螺栓 (12)。 丢弃螺母 (11)。

  7. 拆下排气歧管组件 (13) 后拆下密封垫。


    图 3g02824677

  8. 拆下双头螺栓 (17)。

    注: 记下排气歧管段的方位,以便于安装中使用。

  9. 分离排气歧管段 (14)、 (15) 和 (16)。

安装步骤

  1. 按与拆卸相反的顺序安装排气歧管组件 (13)。

    1. 将双头螺栓 (17) 拧紧至扭矩为 35 ± 5 N·m (26 ± 4 lb ft)。 扭矩工具转速不应超过 100 RPM。

    2. 将工具 (B) 涂抹在排气歧管段 (14) 和 (16) 的外径上。 将工具 (B) 涂抹在排气歧管段 (15) 的内径上。 除去组装接头处多余的密封胶。

    3. 安装波纹管 (7),使流向箭头指向排气冷却器。 波纹管的未对准总量为横向 1.50 mm (0.06 in) 和轴向 1.50 mm (0.06 in)

    4. 将卡箍组件 (6) 拧紧至扭矩为 7.5 ± 1 N·m (66 ± 9 lb in)

    5. 将双头螺栓 (12) 拧紧至扭矩为 35 ± 5 N·m (26 ± 4 lb ft)。 扭矩工具转速不应超过 100 RPM。


      图 4g01381130

    6. 将工具 (C) 涂抹到螺母 (11) 上。

    7. 将工具 (D) 安装在位置 (X) 处,每一歧管段有一个孔。 定位隔套,然后安装螺母 (11)。 用手带紧螺母 (11)。 拆下工具 (D)。

    8. 将螺母 (11) 按以上顺序上紧到 20 ± 3 N·m (15 ± 2 lb ft) 的扭矩。 将螺母 (11) 按以上顺序重新上紧到 50 ± 5 N·m (37 ± 4.0 lb ft) 的扭矩。

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