Waters Xevo TQ-S Operator's, Overview And Maintenance Manual page 172

4 Maintenance Procedures
2. Use the 10-mm wrench to remove the probe tip.
If the probe tip is difficult to remove, use the 7-mm wrench in
Tip:
conjunction with the 10-mm wrench.
172 February 28, 2014, 715002212 Rev. C
Probe tip
7-mm wrench
10-mm wrench
10-mm wrench
Probe tip