168 5977 Series MSD Operation Manual
6 CI Maintenance
To Replace a Filament in a CI Ion Source
Materials needed
• Filament assembly (G2590-60053)
• Gloves, clean, lint-free
• Large (8650-0030)
• Small (8650-0029)
• Hex ball driver, 1.5-mm (8710-1570)
Procedure
1 Vent the MSD. See “Venting the MSD” on page 57.
2 Open the analyzer chamber. See “To Open the Analyzer Chamber” on
page 78.
3 Remove the ion source. See “To Remove the CI Ion Source” on page 157.
4 Remove the gold plated screw and washer for the filament.
WARNING
The analyzer operates at high temperatures. Do not touch any part until you are sure
it is cool.
Gold plated screw and washer
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