Elevator maintenance and elevator maintenance is the most important security system, elevator security system to protect the safe operation of the lift, if in times of danger, protection facilities can not reliably operate sightseeing lift warranty, the accident may therefore lift security facility maintenance and repair, must pay more attention to. The hydraulic shock absorber piston exposed parts should be kept clean and painted anti-rust paint, not vertically movable plunger of a hydraulic shock absorber must not exceed ± 0.5mm. Installed on the same basis of two buffers, a top tourist elevator relative height difference may not exceed 2mm. Spring buffer top surface is not level degree panoramic elevator manufacturer, shall not exceed 4 // 1000. Annual car inspection speed sightseeing elevator supply, a reset test buffer to deal with hydraulic shock absorber switch weekly sanity check. It has a panoramic elevator car, running between at least two vertical rigid rail. According to the rated speed can be divided into low speed elevators (1 m / sec), fast elevators (1-2 m / s) and high-speed elevators (2 m / sec or more) three kinds. Mid-19th century began to use a hydraulic lift and still use the low-rise buildings. In 1852, the United States of EG Otis developed to enhance the safety rope lift. _ Noah Witt sightseeing elevator supply elevator (Online) _ Wudi County Tourism lift provided by the Texas Noah Witt Elevator Company. Texas Noah Witt Elevator Co. (www.dznywt.com) is an industry leader in Shandong Dezhou, machinery and industrial products, cooperation projects over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customers needs. Noah Witt Elevator leadership with the staff warmly welcome all inquiries negotiations to create Noah Witt elevator a better future.