Waters SYNAPT G2, Руководство оператора, обзор и техническое обслуживание, Страница: 133 / 236

Replacing the ESI probe tip and gasket 5-55
To fit the T-Wave ion guide assembly and PEEK ion block support to the
source
1. Ensuring that the “Top” labels (stamped on the assembly’s PEEK
supports) are uppermost, carefully slide the T-Wave ion guide assembly
into the pumping block.
2. Ensure that the grooves for the PEEK ion block support O-rings are free
from dirt and debris.
Tip:
If contamination is present, use 1:1 methanol/water, applied to a
lint-free cloth, to carefully clean the grooves.
3. Fit the O-rings to the PEEK ion block support.
Requirement:
Fit new O-rings, if necessary.
Tip:
To fit an O-ring in its groove, start fitting the O-ring at the notch in
the groove, and then progressively work the ring into the groove in
either direction from the notch.
4. Fit the PEEK ion block support to the instrument’s housing.
5. Using the 3-mm Allen wrench, fit and tighten the 4 PEEK screws that
secure the ion block support.
6. Fit the ion block assembly to the PEEK ion block support (see
page 5-37 ).
Replacing the ESI probe tip and gasket
Replace the ESI probe tip if a blockage occurs in the internal metal sheathing
through which the stainless steel capillary passes or if the probe tip is
damaged.
Caution:
To avoid recontaminating the source, wear clean,
chemical-resistant, powder-free gloves during this procedure.
Caution:
To avoid damage when fitting the hexapole assembly into the
source adaptor housing:
• avoid scratching the internal surfaces of the adaptor block.
• do not compress the hexapole rods.