6 General Maintenance
To Remove the EI XTR, SS, Inert, or Hydronert Source
5977C GC/MSD Operating Manual 169
To Remove the EI XTR, SS, Inert, or
Hydronert Source
Materials needed
• Gloves, clean, lint-free
• Large (8650-0030)
• Small (8650-0029)
• Pliers, long-nose (8710-1094)
Procedure
1 Vent the MSD. (See “To Vent the MSD” on page 109.)
2 Open the analyzer chamber. (See “To Open the Analyzer Chamber” on
page 149.)
3 Disconnect the wires from the EI source. Do not bend the wires any more
than necessary. (See “To Connect/Disconnect Wiring from the EI XTR, SS,
and Inert Sources” on page 170 or “To Connect/Disconnect Wiring from the
EI Hydronert Source” on page 171.)
4 Remove the thumbscrews that hold the ion source in place. (See Figure 65
on page 199.)
5 Pull the ion source out of the source radiator.
The analyzers, GC/MSD interface, and other components in the analyzer
chamber operate at very high temperatures. Do not touch any part until you
are sure it is cool.
Always wear clean gloves to prevent contamination when working in the
analyzer chamber
Make sure you use an antistatic wrist strap and take other antistatic
precautions before touching analyzer components.
When disconnecting leads, pull on the connectors, not the wires.
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