While holding the release button depressed, pull the knob and shaft out of the headlamp switch.

保持钮的按住状态，将按钮和轴拉出开关。

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This article has made statistic and analyses on many types of flameproof button and switches used in coalmine, such as travel switch, limit switch, pull switch, and so on.

就煤矿井下现用的隔爆按钮以及行程开关、限位开关、打点器、拉线开关、井口开关等进行了统计、分析，针对使用中出现的问题提出了改进措施。

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While holding the release button depressed, pull the knob and shaft out of the headlamp switch.

同时按下并保持调谐钮和灯开关，打开机器。

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While holding the release button depressed, pull the knob and shaft out of the headlamp switch.

同时按下并保持调谐钮和灯开关，打开机器。

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