3524B Engines for 797 and 797B Off-Highway Trucks Caterpillar


Flywheel - Inspect

Usage:

3524B 1AW

表 1
所需工具 
零件号  零件名称  数量 
8T-5096  千分表总成 

飞轮端面跳动(轴向偏心度)



    图 1g00286049
    检查飞轮的端面跳动

  1. 请参阅图 1 并安装千分表。 在读取千分表上的读数之前,在曲轴上施加一个同方向的力。 这样会消除曲轴端隙。

  2. 设定千分表以读取 0.0 mm (0.00 inch)

  3. 以 90 度为间隔转动曲轴,读取千分表的读数。

  4. 记录所有四个测点的测量值。 计算出较高和较低测量值之间的差值。 该数值就是跳动量。 飞轮的最大可允许表面跳动量(轴向偏心度)不得超过 0.15 mm (0.006 inch)

飞轮镗孔跳动(径向偏心度)



图 2g01193057
检查飞轮的镗孔跳动
(1) 7H-1945 固定杆
(2) 7H-1645 固定杆
(3) 7H-1942 千分表
(4) 7H-1940 通用附件

  1. 安装 7H-1942 千分表 (3)。 调整 7H-1940 通用附件 (4),使千分表接触到飞轮。

  2. 设定千分表以读取 0.0 mm (0.00 inch)

  3. 以 90 度为间隔转动曲轴,读取千分表的读数。

  4. 记录所有四个测点的测量值。 计算出较高和较低测量值之间的差值。 该数值就是跳动量。 飞轮的最大可允许孔跳动量(径向偏心度)不得超过 0.15 mm (0.006 inch)


    图 3g00286058
    飞轮离合器导向轴承孔

  5. 记录所有四个测点的测量值。 计算出较高和较低测量值之间的差值。 该数值就是跳动量。 飞轮的最大可允许导向孔跳动量不得超过 0.13 mm (0.005 inch)

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