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GA 01.600/10.02 - 07/01
Checking / Maintenance
3.2 Oil Change
Before pumping oxygen (or other highly
reactive gases) at concentrations excee-
ding the concentration in the atmosphere
(> 21 % for oxygen) it will be necessary to
use a special pump. Such a pump will have
to be modified and de-greased, and an inert
special lubricant (like PFPE) must be used.
For proper operation of the pump, it is essential that the
pump has an adequate supply of the correct and clean
oil at all times.
The oil must be changed when it looks dirty or if it
appears chemically or mechanically worn out (see Sec-
tion 3.1.1).
The oil should be changed after the first 100 operating
hours and then at least every 2,000 to 3,000 operating
hours or after one year. At high intake pressures and
intake temperatures and/or when pumping contaminated
gases, the oil will have to be changed much more fre-
quently.
Further oil changes should be made before and after
long-term storage of the pump.
Only change the oil after the pump has
been switched off and while the pump is still
warm.
Required tool: Allen key 8 mm.
Remove the oil drain plug (7/4) and let the used oil drain
into a suitable container. When the flow of oil slows
down, screw the oil drain plug back in, briefly switch on
the pump (max. 10 s) and then switch it off again. Remo-
ve the oil drain plug once more and drain out the remai-
ning oil.
Screw the oil drain plug back in (check the gasket and
reinstall a new one if necessary).
Remove the oil fill plug (7/1) and fill in fresh oil.
Screw the oil fill plug (7/1) back in.
If there is the danger that the operating
agent may present a hazard in any way due
to decomposition of the oil, or because of
the media which have been pumped, you
must determine the kind of hazard and
ensure that all necessary safety precau-
tions are taken.
We can only guarantee that the pump ope-
rates as specified by the technical data if
the lubricants recommended by us are
used.
3.2.1 Disposal of Used Pump Materials
The corresponding national environmental and safety
regulations apply. This applies equally to used filters and
filter elements (oil filter, exhaust filter and dust filter).
- In the case of hazardous substances
determine the kind of hazard first and
observe the applicable safety regulations.
If the potential hazard still persists, the
pump must be decontaminated before
starting with any maintenance work. For
professional decontamination we recom-
mend our Leybold service.
- Never exchange the oil or the filters while
the pump is still hot. Let the pump cool
down to uncritical temperatures first. You
must wear suitable protective clothing.
Caution
Warning
Caution
Fig. 7 Oil change
Key to Fig. 7
1 Oil fill plug
2 Oil level mark “maximum”
3 Oil level mark “minimum”
4 Oil drain plug
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