Waters Xevo G2-XS QTof Overview And Maintenance Manual page 160

6 Maintenance Procedures
4. Remove the O-ring from the differential pumping aperture on the second
ion guide assembly (see
Second ion guide assembly
5. If the O-ring shows signs of deterioration or damage, dispose of it in
accordance with local environmental regulations.
Notice:
remove the differential pumping aperture or any further components
from the assembly.
160 April 2, 2015, 715004496 Rev. B
page
Differential pumping aperture
Warning:
surfaces with biologically hazardous, toxic, or corrosive
materials, dispose of the O-ring according to local
environmental regulations.
To avoid misalignment of the StepWave ion guide, do not
110).
To avoid contaminating uncontaminated
O-ring