C15 and C18 Engines for Caterpillar Built Machines Caterpillar


Cylinder Head - Remove and Install

Usage:

826K 232

拆卸步骤

表 1
所需工具 
工具  零件号  零件说明  数量 
4C-5592  防粘结剂 
8T-2998  润滑剂 
9S-3263  螺纹锁固胶 
5P-3931  防粘结剂 

开始:

  1. 拆下凸轮轴齿轮。

  2. 拆下电子单体喷油器。

  3. 拆下所有摇臂轴。

  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. 拆下排气旁通阀。

  11. 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)。

  2. 拆下螺栓 (4) 和板 (5)。


    图 2g01377738

  3. 拆下密封盘 (6)。


    图 3g01377739

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


    图 4g01867334

  5. 拆下螺栓 (10)。


    图 5g01867354

  6. 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

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


    图 7g01867515

  8. 将隔板 (15) 从缸体上拆下。


    图 8g01867534

  9. 将密封垫 (16) 从缸体上拆下。

  10. 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" 的螺栓为 216 mm (8.5 in) 长:11, 12, 13, 14, 16, 18, 20, 22, 24 和 26。 其余螺栓为 194 mm (7.6 in) 长。

    2. 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。

    3. 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。

    4. 将工具 (C) 涂抹到螺栓 (1) 的螺纹上。

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