Waters Xevo G2-XS QTof Overview And Maintenance Manual page 119

8. Start the mass spectrometer (see
After you add oil to the pump, the following situations can occur:
Tips:
• The oil level drops slightly during the first month of operation.
• The oil changes color (darkens) over time.
• After running the pump for 12 to 48 hours, it is common to see a few
drops of oil near the filler plug. Excess oil around the lip of the filler
plug will run down and drip off the pump once the pump reaches
operating temperature.
• When the pump begins to run at normal operating temperature,
spilled oil becomes slightly odorous.
Maintaining the Oerlikon Leybold oil-filled roughing pump
page 46).
April 2, 2015, 715004496 Rev. B 119