Use a triangular key for the stairway

How do I use the elevator key

1. Make sure the elevator has stopped running and there is no possibility of starting again

2. Insert the triangular key into the elevator lock hole of the floor door and turn counterclockwise when it is in place.

3. After the lock hook on the upper part of the elevator door is opened, open the elevator door a little more than 20cm wide, put your foot in and block the door to prevent it from closing.

4, slowly put your head into the elevator shaft, check the position of the car, first look and then look down, to prevent "taishan top"

5, according to the position of the car, open the required floor door, width in enough, can be broken off with both hands, or against the body.

6. Pay attention to safety and do a good job in protection.