C175-16 and C175-20 Engines for Caterpillar Built Machines Caterpillar


Inlet and Exhaust Valves - Remove and Install

Usage:

C175 B7B

拆卸步骤

表 1
所需工具 
工具  零件号  零件说明  数量 
333-0758  气门弹簧压缩器 

开始:

  1. 拆下电子单体喷油器。 请参阅拆解和组装, "电子单体喷油器 - 拆卸"。

  2. 拆卸缸盖。 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並縮短部件使用寿命。




    图 1g01206603


    图 2g01207146

  1. 将工具 (A) 安装到电子单体喷油器的孔内。 请参阅插图 2。


    图 3g01851274

    ------ 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. 将工具 (A) 的板安装到气门弹簧上。 请参阅插图 3。 将螺母安装到螺柱上。 拧紧螺母以压缩气门弹簧 (2)。 拆下挡圈锁 (1)。


    图 4g01206605

  3. 拆下工具 (A)。 拆卸转盘 (3)、外弹簧 (4)、内弹簧 (5)、气门密封 (6)、挡圈 (7) 和气门 (8)。

安装步骤

表 2
所需工具 
工具  零件号  零件说明  数量 
333-0758  气门弹簧压缩器 


    图 5g01206605

  1. 安装气门 (8)、挡圈 (7)、气门密封 (6)、内弹簧 (5)、外弹簧 (4) 和转盘 (3)。


    图 6g01206603


    图 7g01228542


    图 8g01851274

    ------ 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. 使用工具 (A),压缩气门弹簧 (2)。 安装挡圈锁 (1)。 释放气门弹簧 (2) 上的张紧力。 拆下工具 (A)。 将螺钉起子安装到喷油器孔内。 慢慢地转动发动机,直到活塞低于上止点约 25 mm (1.00 in)。 用软面锤轻轻敲打气门顶部,以确保挡圈锁 (1) 正确就位。

结束:

  1. 安装缸盖。 请参阅拆解和组装, "缸盖- 安装"。

  2. 安装电子单体喷油器。 请参阅拆解和组装, "电子单体喷油器 - 安装"。

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