Thermo Scientific DSQ II, Hardware Manual

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2
Maintaining the DSQ II
Maintaining Components Outside the Vacuum Manifold
Thermo Scientific DSQ II Hardware Manual 79
Replacing the CI Reagent Gas Flow Module
To replace the CI reagent gas flow module, you will need;
• New CI Reagent Gas Flow Module (PN 23331-0091)
• Leak detector (Thermo Scientific GLD Pro PN 66002-001 or equivalent)
• Screwdriver, Phillips #2
• Wrench, open-ended, 7/16-in.
1. Cover the work area with a lint-free cloth.
2. Shut down and vent the DSQ II, as described in "Shutting Down the GC/MS System"
on page 18 .
3. Remove the left cover, as described in " Removing the Left Cover" on page 29 .
4. Turn off the CI reagent gas supply.
5. Remove the CI reagent gas flow module.
WARNING - ELECTRICAL SHOCK HAZARD. Before proceeding. unplug the DSQ II to
avoid an electrical shock.
WARNING - FLAMMABLE GAS HAZARD. CI reagent gases are often flammable or
corrosive. For safety reasons, you must vent the gas to a fume hood or other suitable
exhaust and make sure the CI reagent gas supply line is leak-tight.