The disassembly sequence of mechanical seals is opposite to the installation sequence. During the process of disassembling mechanical seals, it is necessary to be careful and not use a hammer or flat shovel. The mechanical seal should not be knocked or damaged, and the sealing surfaces of the dynamic and static rings of the mechanical seal should not be damaged. If there is too much dirt such as oil, the chemical printing and dyeing mechanical seal cannot be disassembled, it must be cleaned with kerosene before disassembly, so as to keep all parts of the mechanical seal intact and undamaged.