7CI Maintenance
To Assemble the CI Source
226 5977C GC/MSD Operating Manual
To Assemble 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
Refer to the exploded parts view Figure 75 and the CI source parts list Table 27
on page 227 while using this procedure.
1 Assemble the ion focus lens, entrance lens, and lens insulator.
2 Slide the drawout plate and the drawout cylinder into the source body.
3 Slide the parts assembled in step 1 into the source body.
4 Install the setscrew that holds the lenses in place.
5 Attach the ceramic disk to the repeller and place on top of the source body.
6 Place the heater block assembly on top of the source body.
7 Reinstall the dummy filament, and the filament and attach with the
setscrews.
Always wear clean gloves when working in the analyzer chamber to avoid
contamination.
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