The correct use and safe installation and maintenance procedures described in this Safety Manual are based on national regulations, experienced escalator installation and maintenance engineers, and occupational safety experts in the field of special equipment. Since the parts produced by each elevator escalator manufacturer are different, and the construction site data is unconventional, it is impossible to generalize any escalator products that may exist on any construction site. Uncertain hazards arising from installation and maintenance, because of these, I hope that each user must carefully study the relevant safety requirements in this manual, and take appropriate safety precautions during installation and maintenance. This manual is not intended to cover the laws and regulations of any government agency, but changes to laws and regulations and their interpretation may invalidate some of the contents of this manual. This monograph was written by Prof. Dongliu Li PhD DEng, Prof. Qibing Wang PhD FIET, Prof. Qipeng Li PhD, Prof. Jun Zou PhD, Prof. Hao Zhang CEng FIET, Mr. Ren Li and Mr. Xiaoqiang Zhang.