Mechanical seal is composed of at least one pair of end faces perpendicular to the axis of rotation under the action of fluid pressure and elastic or magnetic force of compensation mechanism, and with the cooperation of auxiliary seal, which keeps sticking and sliding relatively to prevent fluid leakage, not only high precision, material is also special, so installation and disassembly should be strictly in accordance with the correct method steps: 1. Before Assembly, check the components strictly for cracks and other damage, spring on the spray coating has no peeling. 2. Strictly check the dynamic and static ring sealing surface, no scratches or scratches, assembly seal surface coated with a layer of cleaning oil or turbine oil. 3. In the entire installation process, components can not be cleaned with dirty cloth or cotton yarn, especially the sealing surface, the application of clean and soft gauze, absorbent cotton, such as scrub. 4. In adjusting the mechanical seal, to pay attention to the spring compression, its numerical value refer to the product specification. And when moving the ring, the "o"-shaped seal ring can not be obliquely rolled in the moving ring. The allowable drip is about 5 drops per minute. 5. Assembly to pay great attention to avoid parts deflection, spring seat set screw to tighten evenly. 6. Disassembly to be patient and careful, especially plastic products, do not use hand hammer, flat shovel and other tools to pry, to prevent damage to the dynamic, static ring, Seal Ring. If there is dirt can not be removed, can not be forced to carry out, should be cleaned first, and then gradually dismantled. Kill. In the demolition do not seek success, to observe first, in the process of disassembly should also be kept in mind, or even a good mark, easy to clean after the correct installation.