. With two or more cranes lifting the same weight, the rope should be kept perpendicular to each crane lifting, running should keep pace; each crane to withstand load shall not exceed their rated lifting capacity. Not meet the above requirements for equipment installation company, should be reduced to 80% of rated lifting capacity; also by reducing the rated lifting capacity of chief engineer used in accordance with the actual situation. Equipment installation, chief engineer should be present when lifting guide. There are primary, cranes, main and auxiliary hoisting mechanism hook two deputy should start at the same time, the design allows for use with the exception of special cranes. Pre-construction conditions a construction, should have the technical document design and equipment; for medium-sized, special or complicated installation works will be the preparation of construction design or construction programs. 2 construction equipment before installation specifications, for temporary construction, transport roads, water, power, steam, compressed air, lighting, fire facilities, the main material and equipment and labor, etc., should be fully ready to make reasonable arrangements. Three projects before construction, its factory roof, exterior walls, windows, doors and interior painting and other projects should be basically completed, when necessary with the construction and installation, floor-related basis, channel and other projects should have been completed, the concrete strength should less than 75% of the design strength; installation and construction site and nearby construction materials, dirt, debris, etc., should be removed. . 4 When the installation process, there is a constant temperature, humidity, shock, dust or radiation, etc., should take appropriate measures after installation at the installation site before the construction process accordingly. 5 When the weather conditions suited to equipment installation requirements, measures should be taken. After taking measures before construction. 6 use of the building structure as lifting, load-bearing points when handling equipment, bearing capacity to deal with the structure of accounting; consent necessary, by design unit before use. Equipment installation, lifting technology leader Lu (certified), Xi'an installation provided by Shandong Lu mechanical equipment installation Limited. Shandong Lu Machinery Installation Co., Ltd. (www.sdlzqz.com) Shandong Jinan, industrial maintenance, installation of leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Lifting leadership in Shandong Lu staff warmly welcome all inquiries negotiations to create Shandong Lu lifting a better future.