Waters SYNAPT G2 Operator's, Overview And Maintenance Manual page 175

5. Remove the filter retainer and expanded-metal mesh from the filter
assembly.
The filter retainer has two lugs that engage with slots at the rear of
Tip:
the filter assembly.
6. Remove the air filter from the filter assembly.
7. Dispose of the air filter in accordance with local environmental
regulations.
8. Fit the new air filter to the filter assembly.
9. Fit the expanded-metal mesh to the filter assembly.
10. Fit the filter retainer to the filter assembly.
Ensure that the filter retainer lugs engage with the slots
Requirement:
at the rear of the filter assembly.
11. Use the 2.5-mm Allen wrench to fit and tighten the screw securing the
filter retainer to the filter assembly.
12. Insert the filter assembly in the instrument.
13. Fit the filter panel to the instrument enclosure.
14. Fit and tighten the thumbscrews securing the filter panel to the
instrument enclosure.
Replacing the mass spectrometer's air filter 5-97