Waters Xevo G2 QTof, Operator'S, Overview And Maintenance Manual, Page: 98 / 248

5-22 Maintenance Procedures
To add oil to the roughing pump:
1. Vent and shut down the mass spectrometer (see the mass spectrometer’s
online Help for details).
2. Disconnect the power cords for the mass spectrometer and roughing
pump from the main power source.
3. Allow the oil to settle in the pump.
4. Unscrew and remove the roughing pump’s oil filler plug.
5. Using the funnel, slowly add Varian GP45 oil into the oil filler aperture
until the oil reaches the oil level sight glass maximum oil level indicator.
6. Fit and tighten the roughing pump’s oil filler plug.
Warning:
To avoid personal injury, as well as damage to the
roughing pumps and mass spectrometer, disconnect the power
cords for the mass spectrometer and roughing pumps from the
main power source.
Warning:
The pump oil can be contaminated with analyte
accumulated during normal operation. Always wear
chemical-resistant, powder-free gloves when adding or
replacing oil.
Warning:
To avoid burn injuries, take great care while working
with the roughing pump: it can be hot.
Caution:
To maintain pump performance,
• use only Varian GP45 oil.
• do not operate the pump with the oil level above the oil level
sight glass maximum oil level indicator.
Caution:
To avoid oil leakage, when fitting the oil filler plug to the
roughing pump,
• ensure that the plug is not cross-threaded.
• do not over-tighten the plug.