C3.3B Engines for Caterpillar Built Machines Caterpillar


Flywheel - Remove and Install

Usage:

236D BGZ

拆卸步骤

表 1
所需工具 
工具  零件号  零件描述  数量 
导向螺柱
M12 - 1.25 - X 100 mm 
138-7573  连杆支架 

注: 参考技术规格, "发动机设计",了解非指定的发动机扭矩值。


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 1g02794543

  1. 将两个螺栓 (2) 从飞轮 (1) 上拆下。


    图 2g02798921

  2. 将工具 (A) 安装在曲轴中。

  3. 将工具 (B) 和适当的起吊设备安装到飞轮 (1) 上。 飞轮 (1) 的重量约为 30 kg (66 lb)

  4. 拆下其余的螺栓 (2)。

  5. 将飞轮 (1) 从缸体上拆下。


    图 3g02798923

  6. 检查飞轮 (1) 和齿圈 (3) 有无磨损或损坏。 更换任何磨损或损坏的部件。

  7. 如有必要,拆下飞轮齿圈 (3),遵循步骤 7a 至步骤 7b。

    1. 将飞轮组件放置在适当的支架上。

    2. 使用锤子和冲头以将齿圈 (3) 从飞轮 (1) 上拆下。 如有必要,可能需要用喷枪加热齿圈 (3)。

      注: 确定飞轮齿圈 (3) 上轮齿的方位。

安装步骤

表 2
所需工具 
工具  零件号  零件描述  数量 
导向螺柱
M12 - 1.25 X 100 mm 
138-7573  连杆支架 


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 4g02798923

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

    操作已经加热的零件时要坚持戴防护手套。


  1. 如果拆下飞轮齿圈 (3),按照步骤 1a 至 1c 将齿圈 (3) 安装到飞轮 (1) 上。

    1. 确定新齿圈 (3) 上轮齿的方位。

      注: 安装飞轮时,齿圈轮齿的倒角侧必须朝向起动马达。 这将确保起动马达正确接合。

    2. 安装前,在烘箱中加热飞轮齿圈 (3) 至最高温度 250 °C (482 °F)

      注: 不要使用喷枪加热齿圈。

    3. 确保齿圈 (3) 的方向正确,并迅速将齿圈安装到飞轮 (1) 上。


    图 5g02798921

  2. 将工具 (B) 和适当的起吊设备安装到飞轮 (1) 上。 飞轮 (1) 的重量约为 30 kg (66 lb)

  3. 将工具 (A) 安装在曲轴中。

  4. 使用起吊设备将飞轮 (1) 安置在工具 (A) 上。

  5. 将螺栓 (2) 安装到飞轮 (1) 上。

  6. 拆下工具 (A)。


    图 6g02794543

  7. 将其余螺栓 (2) 安装到飞轮 (1) 上。 向螺栓上涂覆发动机机油。 拧紧螺栓 (2) 至扭矩为 98 to 107 N·m (72 to 80 lb ft)

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