If the rotary vane vacuum pump in operation is operated improperly, the vacuum degree of the rotary vane vacuum pump will be reduced, and phenomena such as smoke, oil injection, oil leakage from the oil seal, noise, etc., as well as the emulsification of the vacuum pump oil in the pump will often occur. . If this happens, don't panic first, and cooperate with the failure to solve the Roots vacuum pump failure after the paralysis.

　　Smoke and jet of rotary vane vacuum pump: the rotary vane vacuum pump emits smoke or jets smoke from the exhaust port during operation

　　1. Smoke: It is normal if the pump starts to run, and it is normal to smoke, but it is not normal to smoke for a long time. Solution: The smoke is outside the suction port of the pump, indicating that the pipes, valves and containers have been repaired. Because the leak is detected and then disposed of, the smoke is over.

　　2. Fuel injection: It means that there are a lot of leakage points outside the air intake, and the air intake is exposed to the atmosphere. Solution: block the suction port of the pump, run the pump, if it does not inject oil, check whether the exhaust valve seat that has a leak point is damaged, and replace the damaged exhaust valve seat. The rotary vane vacuum pump can be used together with the Roots vacuum pump to form a Roots rotary vane vacuum unit.