7 General Maintenance
To Remove a Filament from the EI XTR Source
7000/7010 Series TQ GC/MS Operating Manual 189
To Remove a Filament from the EI XTR
Source
Materials needed
• Gloves, clean, lint-free (Large 8650-0030) (Small 8650-0029)
• Hex ball driver, 1.5 mm (8710-1570)
• Tweezers (8710-2460)
Procedure
1 Vent the MS. (See “To Vent the MS” on page 124.)
2 Open the front analyzer chamber. (See “To Open the Front Analyzer
Chamber” on page 156.)
3 Remove the ion source. (See “To Remove the EI XTR Source” on page 162.)
4 Remove the screws holding the filaments to the ion source body. (See
Figure 62 on page 190.)
5 Slide the filaments off the ion source assembly. (See Figure 62 on page 190.)
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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