7 General Maintenance
To Remove the EI HES Filaments
192 7000/7010 Series TQ GC/MS 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 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, and place it on a clean cloth on your work surface.
(See “To Remove the EI HES” on page 159.)
4 Remove the screw securing the filament block to the source mount. (See
Figure 63.)
5 Use the hand grip on the filament block to remove the filament block from
the source.
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.
Figure 63. Replacing the dual filament
Source mount
Screw
Filament block
Dual filament
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