Waters Xevo TQD, Overview And Maintenance Manual

Page: 177 / 250

Replacing the source assembly seals
March 14, 2014, 715004387 Rev. B 177
To fit the new source enclosure and probe adjuster assembly probe seals:
1. Ensure that all the grooves for seals 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.
Requirement:
Ensure that the tails of the source enclosure seals are
correctly located in the groove when fitting them to the source enclosure.
2. Fit the new source enclosure seal to the source enclosure.
Tip:
Start by feeding the seal into the groove at the bottom right-hand
corner, and then working around the seal in a counterclockwise
direction.
3. Fit the following new seals to the source enclosure:
• Nebulizer gas seal
• Desolvation gas seal
Requirement:
These seals have a special cross-section; fit them in the
groove as shown.
4. Fit the following new seals to the probe adjuster assembly:
• Probe seal
• Nebulizer gas seal
5. Refit the source enclosure to the instrument (see page 92 ).
Warning:
To avoid personal contamination with biohazards or
toxic materials, and to avoid spreading contamination to
uncontaminated surfaces, wear clean, chemical-resistant,
powder-free gloves when working with the source components.
Groove
Seal