6 General Maintenance
168 5977B Series MSD Operating Manual
To Remove the EI HES filaments
Materials needed
• Gloves, clean, lint-free
• Large (8650-0030)
• Small (8650-0029)
• Cloths, clean (05980-60051)
• T6 Torx driver, (8710-2548)
Procedure
1 Vent the MS. (See “To Vent the MSD” on page 113.)
2 Open the analyzer chamber. (See “To Open the Analyzer Chamber” on
page 152.)
3 Remove the ion source and place it on a clean cloth on your work surface.
(See “To Remove the EI HES” on page 154.)
4 Remove the screw securing the filament block to the source mount. (See
Figure 54 on page 169.)
Always wear clean gloves to prevent contamination when working in the analyzer
chamber.
The analyzer, GC/MS interface, and other components in the analyzer chamber
operate at very high temperatures. Do not touch any part until you are sure it is cool.
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