3054 Engine Caterpillar


Flywheel Housing - Inspect

Usage:

554 1AM

简介

此步骤旨在给出检查飞轮壳体的信息。 有关本步骤中使用的尺寸和技术规格,请参阅技术规格手册。

所需工具

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

检查步骤

飞轮壳体同轴度

注: 本项检查必须在已拆卸飞轮和起动马达并稍微拧紧飞轮壳体螺栓的情况下进行。




    图 1g00913387

  1. 安装图 1 中的千分表,如图所示。

  1. 将千分表指针设在 0 mm (0 in)。

  1. 绕飞轮壳每隔 90 度检查同轴度。

  1. 计算最小测量值与最大测量值之间的差值。 这个差值不能高于表 2 中给出的极限值。

    注: 必须先对飞轮壳体进行所有必要的调整。 然后,重新检查同轴度。

飞轮壳体直线度

注: 本项检查必须在已拆卸飞轮和起动马达并以正确扭矩拧紧飞轮壳体螺栓的情况下进行。




图 2g00913389

  1. 安装图 2 中的千分表,如图所示。

  1. 将千分表指针设在 0 mm (0 in)。

  1. 绕飞轮壳体每隔 90 度检查直线度。

  1. 计算最小测量值与最大测量值之间的差值。 这个差值不能高于表 2 中给出的极限值。

    注: 必须先对飞轮壳体进行所有必要的调整。

    表 2
    飞轮壳体跳动量和直线度极限值(千分表总读数)    
    壳体法兰孔     最大极限值(千分表总读数)    

    362 mm (14.25 in)    

    0.23 mm (0.009 in)    

    410 mm (16.14 in)    

    0.25 mm (0.010")    

    448 mm (17.63 in)    

    0.28 mm (0.011 in)    

    511 mm (20.11 in)    

    0.30 mm (0.012 in)    

    584 mm (22.99 in)    

    0.36 mm (0.014 in)    

    648 mm (25.51 in)    

    0.41 mm (0.016 in)    

    787 mm (30.98 in)    

    0.48 mm (0.019 in)    

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