C6.6 Engines for Caterpillar Built Machines Caterpillar


Fuel Injection Pump Gear - Install

Usage:

CS-56B 437

安装步骤

表 1
所需工具    
工具     零件号     零件描述     数量    
B     230-6284     正时销(凸轮轴)     1    
C     136-4632     正时销(曲轴)     1    
268-1966 齿座     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。


注: 直到您按照本步骤说明解锁喷油泵之前,喷油泵必须保持在锁定位置。

  1. 确保 1 号活塞在其压缩冲程的上止点位置。 有关正确步骤,请参阅系统操作、测试和调整, "查找 1 号活塞上止点"。



    图 1g01335380

  1. 确保已将工具 (C) 安装在缸体的孔 (Y) 中。 使用工具 (C) 将曲轴锁定到位。



    图 2g01335394

  1. 确保已将工具 (B) 安装在凸轮轴齿轮 (1) 的孔 (X) 中。

  1. 确保喷油泵的轴 (9) 清洁且无损坏。

  1. 确保已将喷油泵锁在正确的位置。 有关正确的步骤,请参阅拆解和组装, "燃油喷油泵 - 安装"。

  1. 确保喷油泵齿轮清洁且损坏。 如有必要,更换燃油泵齿轮。



    图 3g01335384

    正时标记的对准

  1. 将燃油泵齿轮 (3) 安装到喷油泵的轴 (9) 中。 确保对齐齿轮 (2) 与 (3) 上的正时标记并使齿轮正确接合。



    图 4g01335395

    典型示例




    图 5g01335382

    典型示例

  1. 安装一个新的弹簧垫圈 (10) ,然后将螺母 (8) 安装到喷油泵的轴 (9) 上。 逆时针方向向喷油泵齿轮 (3) 施加足够的压力来消除齿隙。 拧紧螺母 (8) 至扭矩为 25 N·m (18 lb ft)。 解锁喷油泵 (5) 。

    为了解锁喷油泵 (5) ,松开喷油泵上的锁紧螺栓 (6) 。 滑动垫片 (7) 至位置 (Z1) 。 抵住垫片将锁紧螺栓 (6) 拧紧至扭矩 9 N·m (80 lb in),以防将锁紧螺栓抵住喷油泵的轴拧紧。

  1. 拆下工具 (B) 和工具 (C) 。 将螺塞 (4) 安装到缸体的孔 (Y) 中。 参考图 1。

  1. 拧紧螺母 (8) 至扭矩为 90 N·m (66 lb ft)。



    图 6g01335426

    典型示例

  1. 确保齿轮 (2) 和齿轮 (3) 的齿隙在规定的数值内。 更多信息请参阅技术规格, "齿轮总成(前)"。

  1. 使用清洁的发动机机油润滑齿轮的轮齿。

End By: 安装前盖。 请参阅 拆解和组装, "前盖 - 拆卸和安装"以了解正确步骤。

Caterpillar Information System:

C6.6 Engines for Caterpillar Built Machines Fuel Injection Pump Gear - Remove
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