64 Maintaining Your GC
5 Maintaining the Split/Splitless Inlet
To Clean the Split/Splitless Inlet
1 Gather the following:
• Replacement septum (See “Consumables and Parts for
the Split/Splitless Inlet” on page 44.)
• Replacement liner
• Replacement O- ring
• Replacement gold seal
• Replacement washer
• Solvent that will clean the type of deposits in your
inlet
• Compressed, filtered, dry air or nitrogen
• Beaker
• Cleaning brushes—The FID cleaning kit (part number
9301- 0985) contains appropriate brushes
• Lint- free gloves
2 Load the inlet maintenance method and wait for the GC
to become ready.
3 Remove the inlet liner. (See “To Change the Liner and
O- Ring on the Split/Splitless Inlet” on page 56.)
4 Disconnect the column from the inlet.
5 Remove the reducing nut and gold seal. (See “To Replace
the Gold Seal on the Split/Splitless Inlet” on page 59.)
6 Place a beaker in the oven under the inlet to catch the
solvent.
7 Soak a cleaning brush in the solvent and scrub the inside
of the inlet weldment. Repeat 10 times.
8 Rinse the inlet with the solvent.
Be careful! The oven and/or inlet may be hot enough to cause
burns. If the inlet is hot, wear heat-resistant gloves to protect your
hands.
Wear clean, lint-free gloves to prevent contamination of parts with
dirt and skin oils.
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