3126B Engines for Caterpillar Built Machines Caterpillar


Inlet and Exhaust Valves - Remove and Install

Usage:

120H 124

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    

开始:

  1. 拆下缸盖组件。 请参阅拆解和组装, "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 1g00991548

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

    被弹簧力爆出的零件击中,会招致人员伤害。

    确保穿上所有必要的保护装备。

    遵照建议的程序,并使用所有建议的工具以释放弹簧力。


  1. 使用工具 (A) 压缩气门弹簧 (4) 。 拆下挡圈锁 (6) 。

  1. 拆下工具 (A) 。 拆下弹簧挡圈 (5) 、气门弹簧 (4) 和垫圈 (3) 。

  1. 拆下气门密封 (1) 和气门 (2) 。

  1. 重复步骤 1 到 3 拆下其余进气门和排气门。

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    


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 2g00991548

    ------ 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. 利用干净的机油润滑气门 (2) 。 在缸盖组件中安装气门 (2) 。 将新气门密封 (1) 安装到气门导管上。

  1. 将以下各项放到气门杆上:垫圈 (3), 气门弹簧 (4) 和 弹簧挡圈 (5) 。

    注: 安装时可以使用少量的润滑脂以保持挡圈锁就位。

  1. 使用工具 (A) 压缩气门弹簧 (4) 。 安装挡圈锁 (6) 。

  1. 重复步骤 1 到 3 安装其余进气门和排气门。

End By: 安装缸盖组件。 请参阅 拆解和组装, "缸盖- 安装"。

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