C4.2 and C6.4 Engines for Caterpillar Built Machines Caterpillar


Flywheel - Inspect

Usage:

320D A6F

飞轮端面跳动(轴向偏心度)

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



    图 1g00295955

    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。

  1. 设定千分表读数为 0.0 mm (0.00 in)。

  1. 沿着飞轮端面的外部周长以 25 mm (1.00 in) 的间隔转动飞轮,并记录每一点的测量值。

  1. 两个连续测量值之间的差异不得大于 0.03 mm (0.001 in),即允许的最大飞轮端面跳动。

飞轮跳动

注: 必须卸下飞轮壳以便进行此跳动检查。




图 2g00295956

检查飞轮跳动

  1. 请参阅图 2 并安装千分表。

  1. 设定千分表读数为 0.00 mm (0.000 in)。

  1. 以 90 度为间隔转动曲轴,读取千分表的读数。

  1. 计算四个位置的最小测量值与最大测量值之差。 此差值不得大于 0.50 mm (0.0197 in)。 此尺寸是允许的飞轮外径跳动的最大距离。

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