C3.3B Engines for Caterpillar Built Machines Caterpillar


Rocker Shaft and Push Rod - Remove and Install

Usage:

236D BGZ

拆卸步骤

开始:

  1. 拆下气门机构盖。

注: 请参阅技术规格 UENR03421“发动机设计”,了解非指定的发动机扭矩值。



    图 1g03338660

  1. 拆下螺栓 (3) 和管组件 (4)。

  2. 拆下螺母 (2) 和支架 (1)。


    图 2g03338669

  3. 将螺栓 (5) 从摇臂轴组件 (6) 上拆下。

  4. 将摇臂轴组件 (6) 从缸盖 (9) 上拆下。

  5. 为了显示位置,在推杆 (8) 上作一个识别标记。 将推杆 (8) 从缸盖 (9) 上拆下。

    注: 识别标记能确保将推杆重新安装在原来的位置。 不要调换旧推杆的位置。

  6. 拆下气门桥臂 (7)。

安装步骤

  1. 按照与拆卸相反的顺序安装摇臂轴组件 (6) 和推杆 (8)。

    1. 安装螺栓 (5),然后拧紧至扭矩为 49 to 55 N·m (37 to 41 lb ft)

    2. 将支架 (1) 放置到位,然后安装螺母 (2)。 拧紧螺母 (2) 至扭矩为 24 to 27 N·m (18 to 20 lb ft)

  2. 放置好管组件 (4) 并安装螺栓 (3)。 拧紧螺栓 (3) 至扭矩为 9.8 to 11.2 N·m (87 to 100 lb in)

  3. 调整进排气门间隙至 0.13 to 0.17 mm (0.005 to 0.007 inch)。 请参阅测试和调整, "发动机气门间隙 - 检查/调整"。

Caterpillar Information System:

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