Second, the mobile ladder suitable for use in the height of 4 meters in a short time to use the workplace, but also in the ladder before the various parts of the structure of the safety performance checks to ensure the safe use of mobile ladder. When used in front of the door, there is a need to prevent the door was suddenly opened measures.
Third, when moving ladders, a temporary sheet or wire mesh is placed between the moving ladder and the mechanical transmission for protection. The ladder can not be used as a support, table or other, only as a climbing tool.