C7 Engine for Caterpillar Built Machine Caterpillar


Gear Group (Front) - Remove and Install

Usage:

MH3037 KPM

拆卸步骤

表 1
所需工具    
工具     零件号     零件描述     数量    
A     1P-0510     冲头总成     1    

开始:

  1. 拆卸前壳体。


注意

保持所有零件清洁无杂质。

杂质会造成快速磨损和缩短部件寿命。


  1. 将 1 号活塞设定到压缩冲程的上止点。 请参阅测试和调整, "找到 1 号活塞上止点位置"。



    图 1g01272583

  1. 为了便于安装,标出每个齿轮的方位。

  1. 拆下螺栓 (4) 和挡板 (6) 。

  1. 将多轮组件 (3) 、惰轮轴 (2) 和止推盘 (1) 从缸体上拆下。

  1. 利用工具 (A) 将轴承 (5) 从惰轮组件 (3) 上拆下。

  1. 拆下螺栓 (7) 、挡板 (8) 和惰轮组件 (9) 。

  1. 检查惰轮组件 (9) 内轴承的状态。 如果轴承磨损或损坏,更换惰轮组件。

安装步骤

表 2
所需工具    
工具     零件号     零件描述     数量    
A     1P-0510     冲头总成     1    


注意

保持所有零件清洁无杂质。

杂质会造成快速磨损和缩短部件寿命。





    图 2g01272583

  1. 将惰轮组件 (9) 和挡板 (8) 安装到机油泵上。 安装螺栓 (7) 。

  1. 检查齿轮组件的端隙。 齿轮组件的端隙为 0.05 到 0.35 mm (0.002 到 0.014 in)。

  1. 使用工具 (A) 将轴承 (5) 安装到惰轮组件 (3) 中。

  1. 将惰轮组件上的正时标记与凸轮轴齿轮和曲轴齿轮上的小孔对齐。 将止推盘 (1) 、惰轮轴 (2) 、惰轮组件 (3) 和挡板 (6) 安装到缸体上。 安装螺栓 (4) ,并拧紧至扭矩为 70 ± 15 N·m (52 ± 11 lb ft)。

  1. 标定转速/正时传感器。 有关标定步骤,请参阅故障诊断与排除, "发动机转速/正时传感器 - 标定"。

End By: 安装前壳体。 请参阅 拆解和组装, "壳体(前) - 安装"。

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