C27 and C32 Engines for Caterpillar Built Machines Caterpillar


Exhaust Manifold - Remove and Install

Usage:

854K 221

拆卸步骤

表 1
所需工具    
工具     零件号     零件描述     数量    
A     165-4638     导管     3    
B     -     Loctite C5-A 铜制品防咬合剂     1    

开始:

  1. 拆下涡轮增压器。


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 1g03687001

  1. 拆下隔热罩 (1) 、隔热罩 (2) 、隔热罩 (3) 和温度传感器 (4) 。



    图 2g03571596

  1. 拆下支架 (5) 和 (9) 。

  1. 拆下卡箍组件 (6) 。

  1. 拆下并弃置螺母 (8) 。 拆下隔套,然后拆下排气歧管组件 (7) 。



    图 3g03573919

  1. 拆下并弃置卡箍组件 (16) 和波纹管 (15) 。

  1. 拆下并弃置卡箍组件 (11) 和波纹管 (12) 。 分离排气歧管段 (10) 、 (13) 和 (14) 。

  1. 拆下温度传感器 (17) 。

安装步骤

表 2
所需工具    
工具     零件号     零件描述     数量    
A     165-4638     导管     3    
B     -     Loctite C5-A 铜制品防咬合剂     1    
C     -     Loctite 镍基防咬合剂     1    

  1. 按与拆卸相反的顺序安装排气歧管组件 (7) 。

    1. 安装新的卡箍组件 (11) 和新的波纹管 (12) 。



      图 4g03573997

    1. 安置新的波纹管 (15) 并安装新的卡箍组件 (16) (未显示)。 确保带有锥段 (A-A) 的波纹管端面向排气歧管。



      图 5g03640862



      图 6g02256453

      拧紧顺序

    1. 将排气歧管安置到位,然后将工具 (A) 安装在位置 (X) 。

    1. 将工具 (B) 涂抹在新螺母 (8) 的螺纹上。 按照上述顺序将螺母 (8) 拧紧至扭矩为 20 ± 3 N·m (15 ± 2 lb ft)。 再次按照上述顺序将螺母 (8) 拧紧至扭矩为 38 ± 5 N·m (28 ± 4 lb ft)。

    1. 将工具 (C) 涂抹到温度传感器 (4) 的螺纹上。 将温度传感器 (4) 拧紧至扭矩为 45 ± 5 N·m (33 ± 4 lb ft)。

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