7CI Maintenance
To Install a CI Source Filament
5977C GC/MSD Operating Manual 231
To Install a CI Source Filament
Materials needed
• Filament assembly, 2-pk, CI (G7005-60072)
• Gloves, clean, lint-free
• Large (8650-0030)
• Small (8650-0029)Tweezers (8710-2460)
Procedure
1 Remove the old filament. (See“To Remove the CI Source Filament” on
page 229.)
2 Place the new filament into its position on the ion source body. (See
Figure 76 on page 230.)
3 Secure the filament to the ion source body with the screw. (See Figure 76 on
page 230.)
4 After installing the filament, verify that it is not grounded to source body.
5 Reinstall the CI source. (See“To Install the CI Source” on page 232 or
“General Information” on page 204.)
6 Pumpdown the MSD. (See“To Pumpdown the MSD in CI Mode” on
page 120.)
7 Autotune the MSD.