6
Maintenance
Maintaining the Ion Sweep Cone and Ion Transfer Tube
82 TSQ Series Hardware Manual Thermo Scientific
8. Sonicate the ion transfer tube in distilled water.
9. Clean the ion sweep cone by wiping the inside and outside with methanol and a
Kimwipe.
10. Remove, clean with methanol, and inspect the Vespel™ O-ring (P/N 97055-20442) that
is seated in the spray cone under the entrance end of the ion transfer tube. Replace it if
necessary.
11. Reseat the O-ring in the spray cone.
12. Insert the ion transfer tube into the heater block. Rotate the tube as you insert it. After
you insert it, turn the tube clockwise until it is fingertight.
13. Align the gas inlet on the ion sweep cone with the sweep gas supply port on the ion source
mount. Firmly press the ion sweep cone into the ion source mount. See Figure 45 and
Figure 46.
14. Reinstall the Ion Max or Ion Max-S source housing on the mass spectrometer as described
in the topic “Installing the Ion Max or Ion Max-S Ion Source Housing” on page 71.
Figure 45. Ion source interface, showing the sweep gas supply port in the API cone seal
CAUTION When you reinstall the ion transfer tube, take these precautions:
• Ensure that everything is properly aligned to prevent stripping the threads on the
ion transfer tube.
• For mass spectrometers other than the TSQ Vantage, be careful not to bend the
ion transfer tube. Rotate the tube as you insert it. (The ion transfer tube of the
TSQ Vantage will bend slightly when you insert it.)
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