Waters ACQUITY UPLC Overview And Maintenance Manual page 62

Figure 3–22: Location of solvent selection valve
Solvent selection valve
5. Use the 2-mm hex wrench to remove the hex screw at the 10 o'clock position on the
cartridge.
Figure 3–23: Hex screw on solvent selection valve cartridge
1
Hex screw
6. Remove the cartridge from the vent valve assembly by pulling straight forward.
7. Unpack the replacement cartridge.
8. Ensure that the groove in the cartridge housing aligns with the groove on the drive clamp.
Tip:
If the grooves do not align, turn the drive clamp until they do.
Note:
Avoid scratching the drive clamp or body.
August 8, 2016, 715005050 Rev. C
Page 62