3304B and 3306B Engines for Caterpillar Built Machines Caterpillar


Inlet and Exhaust Valves - Remove and Install

Usage:

D6D 01Y

拆卸步骤

Table 1
所需工具    
工具     零件号     零件名称     数量    
A     5S-1330     气门弹簧压缩器     1    
B     8S-2263     气门弹簧测试仪     1    

开始:

  1. 拆卸缸盖。 请参考解体与组装, "缸盖 - 拆卸"。


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 1g00490614

  1. 使用工具 (A) 压缩气门弹簧 (2) ,然后拆下气门锁片 (1) 。

  1. 拆下工具 (A) 、rotocoil 密封圈、气门弹簧和气门杆油罩。 从缸盖上拆下气门。 为了便于安装,在气门上作出识别标记。



    图 2g00490682

  1. 用工具 (B) 检查气门弹簧力。 有关气门弹簧的信息,请参考技术参数, "缸盖气门"。

  1. 对于其余的进气门和排气门,进行第 1 至 3 步。

安装步骤

Table 2
所需工具    
工具     零件号     零件名称     数量    
A     5S-1330     气门弹簧压缩器     1    
B     5S-1322     气门锁片插入器     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。


  1. 用清洁的发动机机油润滑进气门和排气门。 将进气门和排气门安装到缸盖中原来的位置。



    图 3g00508681

  1. 将气门 (3) 、油罩 (4) 、气门弹簧 (2) 和 rotocoil 密封圈 (1) 安装到缸盖中。



    图 4g00490777

  1. 使用工具 (A) 压缩气门弹簧 (2) 。 使用工具 (B) 将气门锁片 (5) 安装到气门杆上。

    ------ WARNING! ------

    当松开气门弹簧压缩器时,气门锁片可能会从气门中弹出。 确保气门锁片正确安装在气门杆上。 为了帮助避免人员伤害,在安装气门时,始终应避开气门锁片和气门弹簧的前方。


  1. 小心拆下工具 (A) 。 用软面锤敲击气门顶部,以便确保气门锁片安装正确。

  1. 对于其余的进气门和排气门,重复第 3 至 4 步。

End By: 安装缸盖。 请参考 解体与组装, "缸盖 - 拆卸和安装"。

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