As it is written in the SOGEVAC instruction manual, every SOGEVAC stored in a static position for more than one year at 20°C can get into trouble because the ball bearings can be damaged and the shaft seals can stick onto the shaft seal sleeves, leading to a rubber tearing at first starting, thus creating an oil leak.

Changing your rotary vane vacuum pump oil is essential, but when should you do it? We discuss some general guidelines, oil identification tips and a general recommended process to follow.