How can I maintain the vacuum pump?

 Use 10% oxalic acid solution to clean the limescale and deposits that may form inside the pump and apply in 30-minute periods.
 Mechanical seals are maintenance-free.
 Bearings are covered on both sides and do not require lubrication until the end of the bearing life.
 If the pump is to be disassembled, the dangerous substances (acidic, basic) that may remain in the pump must be emptied without any previous contact.
 Hazardous substances remaining in the pump may cause interruption in the pump fluid.
 If there is a filter in the system, do not remove the filter without stopping the pump.