C15 and C18 On-Highway Engines Caterpillar


Cylinder Head - Remove and Install

Usage:

C18 BE2

拆卸步骤

表 1
所需工具    
工具     零件号     零件描述     数量    
A     -     Loctite Graphite-50 抗咬合润滑剂     -    
B     8T-2998     润滑剂     -    
C     -     Loctite 242 蓝色中强度螺纹锁固胶     -    
D     -     Loctite C5-A 抗咬合润滑剂     -    

开始:

  1. 拆下凸轮轴齿轮。
  2. 拆下电子单体喷油器。
  3. 拆下摇臂和摇臂轴。
  4. 拆下气门机构罩盖底座。
  5. 拆下排气歧管。
  6. 拆下燃油滤清器底座。
  7. 拆下烟气处理总成。
  8. 拆下排气感应阀。
  9. 拆下发动机机油滤清器底座。
  10. 拆下增压压力传感器。



    图 1g01377731

  1. 拆下螺栓 (1) 和止推盘 (2) ,以拆下转接接头 (3) 。

  1. 拆下螺栓 (4) 和板 (5) 。



    图 2g01377738

  1. 拆下密封盘 (6) 。



    图 3g01377739

  1. 将 O 形密封圈 (8) 和 O 形密封圈 (9) 从密封盘 (7) 上拆下。



    图 4g01867334

  1. 拆下螺栓 (10) 。



    图 5g01867354

  1. 使用适当的起吊设备拆下缸盖 (11) 。 缸盖 (11) 的重量约为 293 kg (645 lb)。



    图 6g01867473

  1. 将油封 (12) 、水封 (13) 和密封垫 (14) 从缸体上拆下。



    图 7g01867515

  1. 将隔板 (15) 从缸体上拆下。



    图 8g01867534

  1. 将密封垫 (16) 从缸体上拆下。

  1. 将 O 形密封圈 (17) 从缸体中的定位销上拆下。

安装步骤

  1. 按相反顺序安装缸盖。

    1. 将工具 (A) 涂抹在缸盖螺栓 (10) 的螺纹和垫圈上。



      图 9g01072801

      注: 标有 "x" 标记的螺栓长度为 216 mm (8.50 in):11, 12, 13, 14, 16, 18, 20, 22, 24 和 26。 其余螺栓长度为 194 mm (7.60 in)。

    1. 按照下列步骤拧紧缸盖螺栓:

      • 按数字顺序依次将螺栓 1 到 26 上紧到 270 ± 15 N·m (200 ± 11 lb ft) 的扭矩。

      • 按数字顺序依次将螺栓 1 到 26 上紧到 450 ± 15 N·m (330 ± 11 lb ft) 的扭矩。

      • 按数字顺序依次将螺栓 1 到 26 重新上紧到 450 ± 15 N·m (330 ± 11 lb ft) 的扭矩。

    1. 组装前,将工具 (B) 和干净机油 50/50 的混合物涂抹到 O 形密封圈 (8) 和 (9) 上。

    1. 将工具 (C) 涂抹到螺栓 (1) 的螺纹上。

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