Maintenance and Servicing
20
109030
Working sequence
Topping-up the oil:
Remove the oil filler plug
Pour in the oil until it reaches the upper mark
Screw in the oil filling plug together with the seal once again
Switch on the vacuum pump and let it work for about 2 minutes
Check the oil level when the pump is switched off, repeat if necessary
Draining the oil:
Unscrew the oil drain plug from the pump casing while the pump is at operating tempera-
ture.
Tilt the vacuum pump slightly, catch the oil in a suitable vessel and dispose of it in accor-
dance with the applicable regulations.
WARNING !
Avoid skin contact with the oil!
Dispose of the oil in accordance with the valid environmental protection regulations!
Filling up with oil:
Remove the oil filler plug
Pour in the oil until it reaches the upper mark
Screw in the oil filling plug together with the seal once again
Switch on the vacuum pump and let it work for about 2 minutes
Check the oil level when the pump is switched off, repeat if necessary
Flushing:
If the oil is heavily contaminated, the vacuum pump must be flushed, e.g.
heavy clouding by condensates
suspended particles such as dust, fibres, abraded particles
dark coloration of the oil
The flushing liquid should be the type of oil which is currently being used.
Procedure
After the rotary vane pump has been filled with fresh oil, allow it to warm up by running it
with the suction port closed.
Drain the flushing oil. If the oil still appears heavily contaminated, the flushing procedure
must be repeated.
