8
Maintenance
Maintaining the API Source Interface
72 Orbitrap Fusion Series Hardware Manual Thermo Scientific
Maintaining the API Source Interface
While you or the service engineer can remove and service the API source interface, only the
service engineer may service the other internal components.
To maintain the API source interface, follow these procedures:
• Cleaning the Ion Sweep Cone, Spray Cone, and Ion Transfer Tube
• Removing the API Source Interface
• Cleaning the RF Lens, Exit Lens, MP00 RF Lens, and Lens L0
• Reinstalling the API Source Interface
Cleaning the Ion Sweep Cone, Spray Cone, and Ion Transfer Tube
Because buffer salts or high concentrations of sample can cause blockages, you must clean the
bore of the ion transfer tube. If pressure in the ion transfer tube and RF lens region (as
measured by the Source Pressure gauge) drops considerably below 1 Torr, a blocked ion
transfer tube is likely.
Follow these procedures:
1. To remove the ion transfer tube
2. To clean the spray cone and O-ring
3. To clean the ion transfer tube
4. To clean the ion sweep cone
Note Before you continue, read the precautions in “Special Notices, Symbols, and
Cautions” on page xiv.
IMPORTANT
• Prepare a clean work surface by covering the area with lint-free paper.
• Put on a new pair of lint- and powder-free gloves before starting each of these
removal, cleaning, and reinstallation procedures.
Tip You do not have to vent the system to remove the ion transfer tube.
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