3408E and 3412E Engines for Caterpillar Built Machines Caterpillar


Flywheel - Inspect

Usage:

769C 01X

飞轮端面跳动(轴向偏心度)

表 1
所需工具  数量 
8T-5096  千分表总成 


    图 1g00812156
    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. 设定千分表读数为 0.0 mm (0.00 in)

  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。 在所有四点测得的高低值间的差值不得超过 0.15 mm (0.015 in),此数值就是飞轮壳的最大容许端面摆差(轴向偏差)。

飞轮镗孔摆差(径向偏心度)

表 2
所需工具  数量 
8T-5096  千分表总成 


    图 2g00812155
    检查飞轮的镗孔摆差。

  1. 安装 7H-1942 千分表。 对 7H-1940 万能固定架 进行调整,以使千分表接触到飞轮。

  2. 设定千分表读数为 0.0 mm (0.00 in)

  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。 在所有四点测得的高低值间的差值不得超过下列数值,此数值即是飞轮壳的最大容许镗孔摆差(径向偏心度)。

    最大分流镗孔摆差 ... 0.15 mm (0.006 in)



    图 3g00286058
    检查飞轮离合器导向轴承孔

  5. 使用前述程序,测量导向轴承孔跳动(偏心度)。

  6. 飞轮导向轴承孔的摆差(偏心度)不得超过下列数值:

    飞轮导向轴承孔的最大摆差 ... 0.13 mm (0.005 in)

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