WATERS CORPORATION TQ, Operator'S Manual, Page: 106 / 192

4 Maintenance Procedures
106 December 6, 2012, 71500126802IVD Rev. C
Fitting the hexapole assembly, PEEK ion block support, and ion
block assembly to the source assembly
Required materials:
• Chemical-resistant, powder-free gloves
• 3-mm Allen wrench
• Lint-free cloth
• HPLC-grade, or better, 1:1 methanol/water
To fit the hexapole assembly and PEEK ion block support to the source
1. Carefully fit the source hexapole assembly into the adaptor housing,
aligning the notches in the differential aperture at its rear with the two
bottom support rails on the analyzer assembly. Then carefully slide the
assembly fully into place.
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 new O-rings to the PEEK ion block support.
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.
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
adaptor housing, observe these precautions:
• Avoid scratching the internal surfaces of the adaptor block.
• Do not compress the hexapole rods.
Caution:
To ensure correct operation of the instrument, neither
hexapole spring must touch a hexapole rod.