C4.4 Industrial Engine Caterpillar


Fuel Injection Timing - Check

Usage:

C4.4 448

表 1
所需工具    
工具     零件号     零件描述     数量    
(1)     9U-6198     曲轴转动工具     1    
(2)     5P-7306     壳体     1    
5P-7305 发动机盘车工具     1    
B     136-4632     正时销(曲轴)     1    
C     364-9107     正时销(喷油泵)     1    
( 1 ) 曲轴转动工具用于前皮带轮。
( 2 ) 该工具在电动起动马达的孔上使用。


注意

请确保对燃油系统进行的所有调整和修理均由经过适当培训的授权人员执行。

在燃油系统上开始任何工作之前,请参阅操作和保养手册, "一般危险信息和高压燃油管路"以了解安全信息。

有关在所有燃油系统工作期间必须遵循的清洁度标准的详细信息,请参阅系统操作、测试和调整, "燃油系统部件清洁度"。


在出现以下任一状况之前必须完成本步骤:

  • 拆卸喷油泵。

  • 松开用于将燃油喷油泵固定到前壳体上的螺栓。

  1. 如有必要,安装喷油泵。 有关正确的步骤,请参阅拆解和组装, "燃油喷油泵 - 安装"。



    图 1g01958182

    典型示例

  1. 从缸体上拆下螺塞 (1) 。 如有必要,使用工具 (A) 旋转曲轴,直到 1 号活塞处于上止点位置。

    注: 1 号活塞可能处于压缩冲程或排气冲程。

  1. 将工具 (B) 安装到缸体中的孔 (X) 。 使用工具 (B) ,将曲轴定位到正确位置。

    注: 安装工具 (B) 时不要使用过大的力量。 在修理过程中不要使用工具 (B) 固定曲轴。




    图 2g02337216

    典型示例

  1. 将工具 (C) 安装到位置 (Y) 处,适配器板的孔中。 使用工具 (A) 旋转曲轴,直到工具 (C) 定位在喷油泵齿轮的槽中。

  1. 从适配器板上拆下工具 (C) 。

  1. 将工具 (B) 从缸体上拆下。

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