Waters Xevo G2-XS QTof Overview And Maintenance Manual page 160

Red PEEK tubing
11. Using the end of the red PEEK tubing, push the capillary into the PEEK union until the red
PEEK tubing is inserted as far as possible into the PEEK union.
Rationale:
Doing so ensures that the capillary and red PEEK tubing make contact inside
the PEEK union.
12. Maintaining slight pressure on the red PEEK tubing, to ensure that it remains in contact
with the capillary, screw and fully tighten the inlet connector into the PEEK union.
Tip:
The following cross-sectional diagram shows the importance of pushing the capillary
into place using the red PEEK tubing, rather than using the PTFE liner tube. Note that the
capillary extends slightly beyond the end of the PTFE liner tube, and contacts the red
PEEK tubing. This positioning is best achieved by pushing the capillary into place using the
red PEEK tubing.
Figure 7–68: Securing the inlet connector
Liner tube
PEEK union
RED PEEK tubing
Probe inlet connector
Sample capillary protruding through the liner tube to contact the red PEEK tubing
Slide port
Notice:
To prevent damage to the ferrule, do not overtighten the PEEK union
onto the slide port.
13. Finger-tighten the PEEK union onto the slide port, and then, using the 7- and 8-mm
wrenches, tighten by an additional quarter-turn.
March 31, 2021, 715004496 Ver. 04 (previously released as Rev. D)
Page 160