Agilent Technologies Agilent 7890 Series Maintenance Manual page 275

Maintaining Your GC
Remove the 3 T- 10 Torx screws from the bead assembly.
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Bead assembly
Gently lift up and remove the old bead assembly. Avoid
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bumping the bead on the sides of the collector.
11 Remove the protective cap covering the new bead.
12 Mount the new bead assembly on the NPD lid. Be careful
not to bump the bead on the sides of the lid or collector.
Replace the screws. Finger- tighten the first screw; tighten
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the remaining screws normally and then completely
tighten the first screw. Do not overtighten the screws.
14
Maintaining the NPD
275