C15 and C18 Engines for Caterpillar Built Machines Caterpillar


Valve Actuator (Variable) - Remove and Install

Usage:

826K 232

拆卸步骤

开始:

  1. 拆下气门机构盖。

注: 在卸下部件后不要拆解可变气门执行器。 可变气门执行器的任何拆解尝试都会使部件丧失保修。


注意

在检验、保养、测试、调整及维修发动机时,请小心确保盛接流出的液体。 在打开或拆解任何储有液体的部件之前,要准备好合适的容器收集液体。

有关适合收集和盛接卡特彼勒产品上的液体的工具和供应品,请参阅专门出版物, NENG2500, "卡特彼勒代理商工具目录"。

按照本地法规和条例处置所有液体。



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 1g01446246

  1. 断开线束组件 (4) 。 断开线束组件 (1) 。

  1. 拆下螺栓 (2) 。 卸下四个螺母 (3) 和两个螺母 (6) 。

  1. 卸下可变气门执行器 (5) 。



    图 2g01446248

  1. 卸下支承 (11) 和螺柱 (10) 。

  1. 卸下两个螺柱 (9) 和三个螺柱 (7) 。

  1. 卸下摇臂组件 (8) 。

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。





    图 3g01446248



    图 4g01446408

  1. 将两个螺柱 (9) 安装在位置 6 和位置 7 处。 将螺柱 (9) 拧紧至至扭矩为 47 ± 9 N·m (35 ± 7 lb ft)。

  1. 将螺柱 (10) 安装在位置 2 处。 将双头螺栓 (10) 拧紧至扭矩为 65 ± 10 N·m (48 ± 7 lb ft)。 安装支承 (11) 。

  1. 安置摇臂组件 (8) 。 将三个螺柱 (7) 安装在位置 3、位置 4 和位置 5 处。 将螺柱 (7) 拧紧至至扭矩为 50 ± 5 N·m (37 ± 4 lb ft)。 再转动螺柱 (7) 45 ± 5 度。



    图 5g01446246

  1. 安装可变气门执行器 (5) 。

  1. 安装螺栓 (2) 。 安装四个螺母 (3) 。 安装两个螺母 (6) 。 请参照紧固顺序。

  1. 拧紧螺栓 (2) 至扭矩为 105 ± 20 N·m (77 ± 15 lb ft)。 拧紧螺母 (3) 至扭矩为 105 ± 20 N·m (77 ± 15 lb ft)。 拧紧螺母 (6) 至扭矩为 47 ± 9 N·m (35 ± 7 lb ft)。 按照数字顺序依次拧紧螺母和螺栓。

  1. 连接线束组件 (4) 。 将线束组件 (1) 连接到可变气门执行器 (5) 上。



    图 6g01446444

  1. 先调整排气门上的间隙,然后调整可变气门执行器 (5) 上的压缩制动器。 有关压缩制动器间隙调整的更多资料,请参阅测试和调整, "压缩制动器间隙 - 调整"。 将防松螺母 (12) 拧紧至扭矩 15 ± 3 N·m (11 ± 2 lb ft)。

End By: 安装气门机构盖。

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