Removing the ion block assembly from the source assembly

Required materials

• Chemical-resistant, powder-free gloves
• Combined 2.5-mm hex wrench and cone extraction tool

To remove the ion block assembly:

Warning: To avoid personal contamination with biologically hazardous, toxic, and corrosive materials, wear chemical-resistant, powder-free gloves when performing this procedure.

1. Vent and shut down the mass spectrometer (see the mass spectrometer’s online Help for details).

 Warning: To avoid personal injury, as well as damage to the roughing pump and mass spectrometer, disconnect the power cords for the mass spectrometer and roughing pump from the main power source.

2. Disconnect the power cords for the mass spectrometer and the roughing pump from the main power source.

 Warning: To avoid burn injuries, allow a hot source to cool for at least 30 minutes before proceeding.

Warning: To avoid puncture wounds, take great care while working with the source enclosure open if one or both of these conditions apply:

• An ESI probe is fitted (the probe’s tip is sharp).
• A corona pin is fitted (the pin’s tip is sharp).

3. Remove the source enclosure (see Removing the source enclosure from the instrument).

Rationale: Removing the source enclosure aids access to the ion block assembly.

4. Close the source isolation valve (see Closing the source isolation valve).

5. Use the combined 2.5-mm hex wrench and cone extraction tool to unscrew the 4 captive ion block assembly securing screws.

6. Remove the ion block assembly from the PEEK ion block support.