Maintenance
and Servicing
P1700040
27
WARNING!
Avoid skin contact with the oil! Dispose of the oil in accordance with the valid
environmental protection regulations!
6.3.2 Filling up with Oil
1. Switch off the pump, disconnect from the power outlet and from the vacuum system.
2. Remove the oil fill plug.
3.
Pour in the oil until it reaches the upper mark “FULL”.
4. Screw in the oil fill plug together with the seal once again.
5. Block the inlet port and switch on the vacuum pump and let it work for about 2 minutes.
6. Check the oil level when the pump is switched off, repeat if necessary.
WARNING!
Avoid skin contact with the oil! Wash hands thoroughly after handling. Keep out of
reach of children. Dispose of the oil in accordance with the valid environmental
protection regulations! Do not overfill, excess oil tends to be splashed out the pump
exhaust! Use only
Directorr™ Premium vacuum oil.
For best dilution of contaminants, especially on chemical applications, we recommend to keep always
oil level at max.
6.3.3 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.
1. After the vacuum pump has been filled with fresh oil, allow it to warm up by running it with
the suction port closed. If you have established that the old oil, which you have previously
drained, was contaminated by condensate (e.g. water) then the gas ballast valve must be
open.
2. Drain the flushing oil. If the oil still appears heavily contaminated, the flushing procedure
must be repeated.
