Waters Xevo G2-XS QTof Overview And Maintenance Manual page 179

Use the 8-mm wrench, to steady the UNF coupling when loosening
Tip:
the locknut.
11. Unscrew the finger-tight PEEK union from the UNF coupling.
12. Remove the ferrule and PTFE liner sleeve from the capillary.
13. Remove the capillary from the UNF coupling.
14. Dispose of the capillary, PTFE liner sleeve, and ferrule in accordance
with local environmental regulations.
Ferrule
PTFE liner sleeve
To avoid contaminating uncontaminated
Warning:
surfaces with biologically hazardous, toxic, or corrosive
materials, dispose of the capillary, PTFE liner sleeve,
and ferrule according to local environmental
regulations.
Replacing the ESI probe sample capillary
April 2, 2015, 715004496 Rev. B 179