Vacuum pump is not new to us. We can say that every corner of our life can not do without it. Through the investigation, it is found that many customers will repair the rotary vane vacuum pump by themselves. If they can't solve the problem, they will find professionals. Many people have wrong operation in the process of self repairing.

1. First of all, to understand the type of pump, characteristics, current situation. Understand the use requirements and determine the repair policy. Before repairing, be prepared to check the technique.

2. Identify the problem and diagnose the problem. Accurate judgment can save effort. The diagnosis should be verified.

3. To eliminate problems, we should first simplify and then complicate, first easy and then difficult. Do not disassemble those that do not need to be disassembled. In order to reduce the new damage caused by the shortage of special tools and improper operation, reduce the azimuth change and running in operation time. Generally speaking, the spliced rotor can not be disassembled, otherwise the shape and position service will not be guaranteed, and the rotor will be scrapped.

4. For poisonous, harmful and corrosive rotary vane vacuum pumps, please clean them first and inform them of necessary protective measures to ensure the health of personnel.