C15 and C18 Engines for Caterpillar Built Machines Caterpillar


Inlet and Exhaust Valve Springs - Remove and Install

Usage:

826K 232

拆卸步骤

表 1
所需工具 
工具  零件号  零件描述  数量 
9U-7241  气门弹簧压缩器 
8S-2263  弹簧测试仪 

开始:

  1. 拆下电子单体喷油器。


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。


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。 该步骤会防止进气门和排气门落入气缸。

  1. 将 1 号活塞安置在压缩冲程的上止点。 请参阅测试和调整, "找到 1 号活塞上止点位置"。


    图 1g01260774


    图 2g01260809

    ------ 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. 在电子控制单体喷油器套筒中安装工具 (A)。 将工具 (A) 与单体喷油器卡箍 (1) 固定到一起。

  3. 拧紧全高螺母直到气门弹簧卡座 (3) 松到气门 (2) 上。

  4. 从气门上拆掉气门弹簧卡座 (3)。

  5. 小心拆掉工具 (A)。

  6. 拆下气门旋转器 (4)。

  7. 从气门上拆掉排气门弹簧 (6) 和进气门弹簧 (5)。

  8. 从气门导杆上拆下垫圈 (7)。

  9. 用工具 (B) 检查一下气门弹簧(弹力)。 关于气门弹簧的更多信息,请参考技术规格, "缸盖气门"。

安装步骤


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. 按与拆卸相反的顺序安装进气门和排气门弹簧。

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