Waters Xevo G2 QTof Operator's, Overview And Maintenance Manual page 153

3. Remove the end cover and gasket.
Nebulizer adjuster knob
4. Unscrew and remove the nebulizer adjuster knob.
5. Remove the PEEK union/UNF coupling assembly and capillary from the
probe.
PEEK union/UNF coupling assembly
Locknut
6. Use the 7-mm wrench to loosen the locknut.
Gasket
End cover
Capillary
Replacing the APCI probe sample capillary 5-77