Jack is one of the repair work of the most commonly used tools, compact lifting equipment company, easy to use. However, if used improperly can cause the body's heavy slump and injured accident. Therefore, when used to pay attention to the following issues: (1) jack to use to pad the bottom flat, tough. No oil in the wood to expand the bearing surface, and ensure safety. Can not be replaced with iron wood, to prevent sliding. For a smooth (2) lifting, a little heavy after starting to check whether the abnormal conditions, such as no abnormal situation to continue up top. Not any longer handle or excessive action. (3) do not overload, high. When the sleeve red line appears, it indicates that the rated lifting height should stop. (4) simultaneous operation of several large jack lifting handling equipment, have someone directing, so lifting or fall simultaneously. To support between two adjacent jack wood, ensure the interval to prevent sliding. (5) should always pay attention to the sealing portion of the pipe joint portion when using the jack, you must ensure that it is safe and reliable. (6) does not apply to establishments jack acid, alkali or corrosive gases. Unconventional lifting alleged that indigenous lifting modern technology, is due to objective reasons, such as small venues lifting equipment, lifting and mechanical properties of existing projects can not meet the actual needs of other reasons, you can not use heavy equipment lifting machinery lifting process starting Heavy lifting is required by simple tooling equipment, manpower and other equipment, hoisting a series of efficient application process to complete lifting of unconventional relatively low activity, we usually called unconventional lifting (indigenous lifting). Equipment lifting handling crane hoisting _ Shandong Lu (certified) _ lifting equipment provided by the Shandong Liaocheng in Shandong Machinery Equipment Installation Company. 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.