8 Maintaining the MMI
To Change the Liner and O-Ring on the MMI
134 Maintaining Your GC
To Change the Liner and O-Ring on the MMI
1 Gather the following:
• Replacement O-ring, see “Consumables and Parts for the Multimode Inlet” on
page 122.
• Replacement liner
• Tweezers
• Wrench, hex for changing septum (optional)
• Wrench, capillary inlet (optional)
• Lint-free gloves
2 Launch the GC maintenance wizard: Maintenance > Inlets, select the multimode inlet, then
select Perform Maintenance > Replace Liner > Start Maintenance. The wizard will walk
through the steps needed to replace the liner and O-ring (those same steps are repeated
below).
Be careful! The oven and/or inlet may be hot enough to cause burns. If either is hot, wear
heat-resistant gloves to protect your hands.
3 Slide the locking tab forward (counterclockwise). Lift the insert assembly straight up and
away from the inlet to avoid chipping or breaking the liner.
4 Loosen the O-ring from the sealing surface with tweezers.
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