C9 Engine for Caterpillar Built Machines Caterpillar


Inlet and Exhaust Valve Springs - Remove and Install

Usage:

MH3049 HPB

拆卸步骤

表 1
所需工具 
工具  零件号  零件描述  数量 
176-5487  气门弹簧压缩器 

开始:

  1. 拆下单体喷油器。 请参阅拆解和组装, "单体喷油器 - 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。


注: 下列步骤用于拆卸进气门弹劾和出气门弹簧,不用拆卸缸盖。 一次只能在一个气缸上执行该步骤。 这会防止进气门和排气门落入气缸。

  1. 旋转曲轴使活塞位于缸内上止点。


    图 1g01167733

    ------ 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。


  2. 利用工具 (A) 压缩进气门弹簧和排气门弹簧。

  3. 拆下挡圈锁片 (2)。

  4. 拆下工具 (A)。

  5. 拆下弹簧挡圈 (3)。

  6. 将进气门弹簧 (4) 和排气门弹簧 (5) 从每个气门 (1) 上拆下。 从缸盖上拆下气门弹簧座。

  7. 转动曲轴前安装进气门弹簧和排气门弹簧。

安装步骤

表 2
所需工具 
工具  零件号  零件描述  数量 
176-5487  气门弹簧压缩器 


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. 安装进气门弹簧和排气门弹簧的气门弹簧座。


    图 2g01167733

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

    弹簧压缩零件如果安装不当,会伤害人体。

    为避免伤害,遵照出版的装配程序,并穿上保护装备。


  2. 将进气门弹簧 (4) 和排气门弹簧 (5) 安装到每个气门 (1) 上。

  3. 安装弹簧挡圈 (3)。

  4. 利用工具 (A) 压缩进气门弹簧和排气门弹簧。

  5. 安装挡圈锁片 (2)。

结束:

  1. 安装单体喷油器。 请参阅拆解和组装, "单体喷油器 - 安装"。

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