Waters SYNAPT G2 Operator's, Overview And Maintenance Manual page 57

Warning:
when performing the leak test.
12. Perform a leak test by attaching the free end of the PEEK tubing to an
LC pump and pumping mobile phase through it, at 200 µL/min.
• If leakage occurs, disassemble and remake the connection, and
repeat the leak test.
• If the backpressure on the LC pump is high, replace the capillary,
and repeat the leak test.
13. When no leakage occurs and the backpressure on the LC pump is
normal, disconnect the PEEK tubing from the LC pump.
14. Remove the probe inlet connector and red PEEK tubing from the PEEK
union.
15. Carefully thread the capillary through the probe assembly.
16. 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.
17. Fit the nebulizer adjuster knob to the PEEK union/UNF coupling
assembly.
18. Finger-tighten the nebulizer adjuster knob onto the probe assembly.
To avoid high-pressure jet spray, wear safety goggles
UNF coupling locating pin
Installing the ESI small bore capillary option
Probe assembly locating slot
3-11