Varian DS102, Instruction Manual

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TECHNICAL INFORMATION
1. Check the oil level through the sight glass: there are two clearly visible arrows indicating maximum and
minimum levels for proper pump operation.
NOTE
The amount of oil consumed depends on the type of work, particularly on the volume being evacuated and on
the frequency of the vacuum cycles.
2. If necessary, open the pump filling plug on the top plane of the pump and add oil.
NOTE
Before starting the procedure, check that the quality and type of oil used corresponds to the indications of Ta-
ble
Varian GP oil characteristics of this manual.
CAUTION
Take great care to avoid oily residues or dust from entering the pump and jeopardizing proper operation.
3. Close the fill plug and, using cotton or other suitable material rags, clean thoroughly the outer surface of
the top plane of the pump.
CAUTION
Never mix lubricants of different brands or quality. To change from one oil to another, the pump must be
stripped down and all parts washed carefully, taking care to eliminate oil residues.
4. Open the gas ballast valve to purify the oil.
28 87-900-937-01(F)