CI Maintenance 6
5975 Series MSD Operation Manual for MassHunter 167
To Disassemble the CI Source
Materials needed
• Gloves, clean, lint-free
• Large (8650-0030)
• Small (8650-0029)
• Hex ball driver, 1.5 mm (8710-1570)
• Hex ball driver, 2.0 mm (8710-1804)
• Wrench, open-end, 10 mm (8710-2353)
Procedure
1 Remove the ion source. See “To Remove the CI Source” on page 165.
2 Remove the filaments. Refer to “To Replace a Filament in a CI Source” on
page 173.
3 Separate the repeller assembly from the source body. The repeller
assembly includes the source heater block assembly, repeller, and related
parts.
4 Remove the repeller and ceramic insulator and separate them.
5 Remove the setscrew for the lenses.
6 Pull the lens assembly out of the source body.
7 Remove the drawout cylinder and drawout plate from the source body.
8 Separate the ion focus lens, entrance lens and insulator.