3500B Engines Caterpillar


Air Shutoff - Remove and Install

Usage:

3516B 1NW

拆卸步骤


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。


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

弹簧加压的零件和/或盖板可能导致人身伤害。

拆卸盖板时弹簧力将被释放。

松动螺栓时做好准备把持住弹簧加载的盖板。


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

如果不遵循正确的程序或不使用推荐的工具,可能会对人员造成伤亡。

为避免对人员造成伤亡,应使用推荐的工具遵循已经制定好的程序。


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

在拆下进气切断装置前,拉动进气切断装置上的跳开关旋钮或按下紧急停止按钮,以释放叶片锁闩。 如果在拆下进气切断装置后释放叶片锁闩,可能导致严重的人身伤害。


  1. 手动释放空气切断阀。 通过拉或压释放空气切断阀上的旋钮。 确保空气切断阀上的指示器径直向下指向"关闭"位置。 如果空气切断阀不触发,请参阅故障诊断与排除, "空气切断阀系统"。


    图 1g01303618

  2. 将管组件 (1) 从空气切断阀 (4) 上断开。

  3. 通过将螺栓 (2) 从空气切断阀 (4) 的接头 (3) 上松开断开进气软管 (5)。

  4. 拆下将空气切断阀 (4) 安装到进气歧管上的螺栓 (6) 和垫圈。

  5. 拆下空气切断阀 (4) 后拆下密封垫。

    注: 检查进气管中有无碎屑。

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 2g01303618

  1. 将新密封垫和空气切断阀 (4) 安装到进气歧管上。 安装螺栓 (6) 和垫圈并拧紧螺栓 (6) 至扭矩为 25 ± 6 N·m (18 ± 4 lb ft)

  2. 重新连接进气软管 (5)。 将螺栓 (2) 安装到接头 (3) 上并拧紧螺栓 (2) 至扭矩为 25 ± 6 N·m (18 ± 4 lb ft)

  3. 将管组件 (1) 重新连接到空气切断阀 (4) 上。

  4. 复位空气切断阀上的指示器。 确保指示器上的箭头径直向上指向"打开"位置。

  5. 测试空气切断阀 (4) 是否正常工作,并参阅操作和保养手册, "空气切断阀"。

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