Waters ACQUITY UPLC Overview And Maintenance Manual page 106

Figure 3–60: Hex screw on injection-valve cartridge
Hex screw
7. Remove the injection-valve cartridge from the injection-valve cartridge chamber by pulling
the cartridge straight forward.
8. Unpack the replacement for the injection-valve cartridge.
9. 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.
Figure 3–61: Correct injection-valve cartridge and drive clamp groove alignment
2
1
Drive clamp
Aligned grooves
Injection-valve cartridge housing
10. Insert the new injection-valve cartridge into the injection-valve cartridge chamber.
Requirements:
• Orient the new cartridge exactly as the old one was oriented.
• The injection-valve cartridge must slide fully into the injection-valve cartridge chamber.
If it does not, report the problem to Waters Technical Service.
11. Insert the 2-mm hex screw at the 10 o'clock position on the injection-valve cartridge.
Tip:
Use the 2-mm hex wrench to tighten it.
3
June 11, 2019, 715005051 Rev. D
Page 106