8CI Maintenance
To Disassemble the CI Source
7000/7010 Series TQ GC/MS Operating Manual 229
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)
• Nut driver, 5.5 mm (8710-1220)
• Tweezers (8710-2460)
Procedure
Refer to the exploded parts view and the CI source parts list while using this
procedure. (See Figure 77 and Table 19 on page 230.)
1 Remove the CI source. (See “To Remove the 7000 Series CI Source” on
page 220.)
2 Remove the filaments. (See “To Remove the CI Source Filament” on
page 238.)
3 Separate the source heater assembly from the source body. The source
heater assembly includes the source heater, repeller, and related parts. (See
Figure 77 and Table 19 on page 230.)
4 Disassemble the repeller assembly by removing the ceramic insulator from
the repeller. (See Figure 77 on page 230.)
5 Remove the setscrew securing the lenses to the source body.
6 Pull the lenses out of the source body and separate the lens insulator, ion
focus lens, drawout cylinder, drawout lens, and entrance lens. (See Figure 77
on page 230.)
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