Waters Xevo G2-XS QTof Overview And Maintenance Manual page 143

6. Grasp the isolation valve, and pull it out of the ion block.
7. Use the O-ring removal kit to carefully remove the isolation valve O-ring
(see page 110).
8. If the isolation valve O-ring shows signs of deterioration or damage,
dispose of it in accordance with local environmental regulations.
To avoid contaminating uncontaminated
Warning:
surfaces with biologically hazardous, toxic, or corrosive
materials, dispose of the isolation valve O-ring
according to local environmental regulations.
Cleaning the ion block assembly
Isolation valve
O-ring
April 2, 2015, 715004496 Rev. B 143