Waters Xevo TQD Operator's, Overview And Maintenance Manual page 152

15. Carefully push the PEEK union/UNF coupling assembly and capillary
into the probe assembly so that the locating pin on the UNF coupling is
fully engaged in the locating slot at the head of the probe assembly.
16. Fit the nebulizer adjuster knob to the PEEK union/UNF coupling
assembly.
17. Finger-tighten the nebulizer adjuster knob onto the probe assembly.
18. Fit the gasket and end cover to the probe assembly.
19. Use the combined 2.5-mm Allen wrench and cone extraction tool to fit
and tighten the 3 screws retaining the probe end-cover.
20. Return the combined 2.5-mm Allen wrench and cone extraction tool to
its storage location on the source adaptor housing.
21. Fit the metal gasket to the probe tip.
22. Fit the probe tip over the capillary, and screw the tip onto the probe
assembly.
23. Use the 10-mm wrench to tighten the probe tip.
24. Use the nebulizer adjuster knob to adjust the capillary so that it
protrudes by approximately 0.5 mm from the end of the probe tip.
25. Fit the ESI probe to the source (see also
4-76 Maintenance Procedures
UNF coupling locating pin
To avoid gas leakage, fully tighten the probe tip.
Caution:
Probe assembly locating slot
page 3-2).