9 Maintaining the FID
To Replace an FID Jet
Maintaining Your GC 147
To Replace an FID Jet
1 Gather the following:
• Replacement jet
• T-20 Torx screwdriver
• 1/4-inch nut driver
• Tweezers
• Compressed, filtered, dry air or nitrogen
• Solvent that will clean the type of deposits in your detector
• Clean cloth
• Cotton swab
• Lint-free gloves
2 Launch the GC maintenance wizard: Maintenance > Detectors, select the detector, then
select Perform Maintenance > Replace FID Jet > Start Maintenance. The wizard will guide
you through the maintenance steps described below.
Be careful! The oven and/or detector may be hot enough to cause burns. If the detector is
hot, wear gloves to protect your hands.
Wear safety glasses to protect your eyes from flying particles while handling, cutting, or
installing glass or fused silica capillary columns. Use care in handling these columns to
prevent puncture wounds.
3 If installed, remove the capillary column from the detector.
Wear clean, lint-free gloves to prevent contamination of parts with dirt and skin oils.
4 Remove the FID castle assembly and place it on a clean cloth.
5 Locate the jet inside the housing.
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