The lubricating oil for the vacuum pump is fluorinated lubricant oil (LVO 410)
or synthetic oil (LVO 210). Another kind of oil can not be used or replaced;
otherwise, it will cause a major damage of the vacuum pump. When replac-
ing the oil, the used oil inside the pump must be drained out completely; oth-
erwise, it will reduce the lifetime of the new oil. The procedures to replace the
oil are listed as follows:
■
Dismantle the oil fill plug at the oil inlet hole.
■
Dismantle the drain plug at the oil outlet hole; drain out the oil of the oil
box, or make use of a proper pump to draw out the used oil.
■
Replace all the O-rings. Check the drain plug is tightened. Wipe off any oil
residues from the casing.
■
Fill in new oil at a pump temperature of 15 ºC to 25 ºC.
■
Make sure to use the right kind of oil and according to Leybold’s sugges-
tion. Only use Leybold authorized vacuum oil and re-supply the new oil.
■
Clean the oil-fill port, reinstall and tighten the plug using a gasket which is
in perfect condition. Wipe off any oil residues from the casing.
Observe the correct oil fill levels for the shutdown (standing still) pump.
The oil levels of both, the gear box and the low pressure side, should be
between 1/2 – 2/3 of the oil level glass height. If the level drops below 1/2,
lubricant should be added (cf. Fig. 3.2).
If the oil level is too low, the bearings and gearwheels are not lubricated
adequately; if it is too high, oil may enter the pumping chamber.
Mineral oils, synthetic oils and PFPE do not mix.
Please consult us if you intend to run the pump with other oils or special
lubricants.
The waste oil must be disposed by a professional and qualified waste dis-
posal dealer, container with PFPE has to be labelled as such. For further info
see Section 7 Waste Disposal.
5.4 Exhaust Piping Connector
A regular leakage check should be performed over all the connecting parts of
the piping. It should be included of checking any crack on the pipes.
Washers, O-rings and pipes should be replaced according to their condition.
All parts should be tightened again or re-sealing if necessary.
5.5 Pump Inlet Flange
Dismantle the pump inlet flange regularly for cleaning the dirt on the mesh
and change with a new O-ring.
NOTICE
To Next Page
Loading...