G3304B and G3306B Engines Caterpillar


Inlet and Exhaust Valves - Remove and Install

Usage:

G3304B A4E

拆卸步骤

表 1
所需工具    
工具     零件号     零件说明     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. 拆下缸盖。


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 1g01954159

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

  1. 拆下工具 (A) 、气门弹簧座组件和气门弹簧 (2) 。 将气门从缸盖上拆下。 在气门上作识别标记以便于安装。

  1. 用工具 (B) 检查气门弹簧力。 请参阅技术规格, "缸盖气门"。

  1. 对于其余的进气门和排气门,进行步骤 1 到步骤 3。

安装步骤

表 2
所需工具    
工具     零件号     零件说明     数量    
A     5S-1330     气门弹簧压缩器     1    
C     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 2g01954159

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

    当松开气门弹簧压缩器的时候,气门弹簧卡座会从气门中弹出。 保证气门弹簧卡座正确安装在气门推杆上。 为了防止造成人员伤害,在安装气门时,应远离气门弹簧卡座前方和气门弹簧。


  1. 将气门、气门弹簧 (2) 和气门弹簧座组件安装到缸盖中。

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

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

  1. 对于其余的进气门和排气门,重复步骤 1 到步骤 4。

End By: 安装缸盖。

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