3126B Engines Caterpillar


Flywheel - Inspect

Usage:

120H 124

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

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。

  1. 设定千分表读数为 0.0 mm (0.00 in)。

  1. 以 90 度为间隔转动曲轴,读取千分表的读数。

  1. 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)




图 2g01141609

检查飞轮的镗孔摆差。

(1) 7H-1945 支架杆

(2) 7H-1645 支架杆

(3) 7H-1942 千分表

(4) 7H-1940 万能固定架

  1. 安装 7H-1942 千分表 (3) 。 对 7H-1940 万能固定架 (4) 进行调整,以使千分表接触到飞轮。

  1. 设定千分表读数为 0.0 mm (0.00 in)。

  1. 以 90 度为间隔转动曲轴,读取千分表的读数。

  1. 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 (0.006 in),此数值就是飞轮壳的最大容许端面摆差(径向偏心度)。



    图 3g00286058

    飞轮离合器导向轴承孔

  1. 使用前述步骤,测量导向轴承孔跳动(偏心度)。

  1. 飞轮导向轴承孔径跳动(偏心度)不得超过 0.13 mm (0.005 in)。

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