C3.4B Engines for Caterpillar Built Machines Caterpillar


Finding Top Center Position for No. 1 Piston

Usage:

CD-44B 398

表 1
所需工具    
工具     零件号     零件描述     数量    
(1)     5P-7306     壳体     1    
5P-7305 发动机盘车工具     1    
( 1 ) 该工具在电动起动马达的孔上使用。

  1. 拆下气门机构盖。 请参考拆解和组装, "气门机构盖 - 拆卸和安装"以了解正确步骤。

  1. 使用工具 (A) 按正常旋转方向旋转曲轴。

  1. 沿正常旋转方向旋转曲轴,直到 4 号气缸的进气门打开,且相同气缸的排气门没有完全关闭。 1 号气缸中的活塞应处于上止点。

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