Maintaining the Split/Splitless Inlet 4
Maintaining Your GC 55
To Clean the Split/Splitless Inlet
1 Gather the following:
• Replacement septum (See “Consumables and Parts for the
Split/Splitless Inlet” on page 36.)
• 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 48.)
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 50.)
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.
WARNING
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.
CAUTION
Wear clean, lint-free gloves to prevent contamination of parts with
dirt and skin oils.