5-46 Maintenance Procedures
4. Fit the ion block assembly to the PEEK ion block support.
5. Use the 6-mm Allen wrench to fit and then slowly and evenly tighten the
2 ion block assembly securing screws and their associated washers.
6. Look through the hole in the side of the source enclosure and view the
area where the ion block assembly meets the PEEK ion block support. If
you see a gap, the extraction cone has slipped out of position during
installation. If this is the case, remove the ion block assembly, refit the
extraction cone, and reinstall the ion block assembly on the PEEK ion
block support.
7. When you are satisfied with the installation of the ion block assembly,
fit the side flange to the source enclosure.
8. Fit and tighten the 3 thumbscrews that secure the right-hand side
flange to the source enclosure.
9. Connect the PTFE tube to the cone gas assembly connection tube.
10. Open the source isolation valve (see “Operating the source isolation
valve” on page 5-8).
11. Close the source enclosure door, and secure it with both spring-clips.
Caution: Do not apply any downward force to the source
enclosure door while the door is open.
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