116 Operation Manual
6 General Maintenance
To Assemble the EI Ion Source
To Assemble the EI Ion 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 Assemble the repeller assembly, by attaching the repeller to
the repeller cap and connecting the clocking button with the
screw.
2 Align the heater sensor with the source body.
3 Slide the repeller cap onto the heater sensor, and place the
ceramic repeller insulator on top, aligning the screw holes.
4 Place the RIS bayonet mount on top of the ceramic repeller
insulator, and attach with the washers and screws.
5 Attach the extractor lens insulator to the extractor lens, and
slide them onto the other end of the source body (Figure 29).
6 Place the ion focus insulator on the ion focus lens and attach
with the two screws.
7 Set the ion focus assembly on top of the extractor lens
assembly on the source body.
8 Attach the filaments with the two screws.
CAUTION
Always wear clean gloves when working in the analyzer chamber to
avoid contamination.
CAUTION
While installing, do not overtighten the repeller nut or the ceramic
repeller insulators will break when the source heats up. The nut should
only be finger-tight.
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