When the elevator goes down, the lower limit is the switch. How to get up the elevator?

When you press the lower limit switch, the elevator should be able to go up without doing anything.

If you're talking about moving limit switches.

Machine room maintenance shield shaft. In other words, it can be opened in the computer room. If not. Simple.

If it's on the roof. The lower limit is installed on the top of the car. You turn the switch outward. If it's on the guide rail. Just bend the bow with a hammer.