10 Maintaining the VI
To Replace the Filter in the Split Vent Trap for the VI
Maintaining Your GC 175
To Replace the Filter in the Split Vent Trap for the VI
1 Gather the following:
• New split vent filter cartridge, see “Consumables and Parts for the Volatiles
Interface” on page 164.
2 Launch the GC maintenance wizard: Maintenance > Inlets, select the inlet, then select
Perform Maintenance > Replace Split Vent Trap > Start Maintenance. The wizard will walk
through the steps needed to replace the filter (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.
The split vent trap may contain residual amounts of any samples or other chemicals you
have injected into the GC. Follow your company’s safety procedures for handling these types
of substances while replacing the trap filter cartridge.
3 Remove the pneumatics cover (top, back of GC). See “To Remove the Pneumatics
Cover” on page 19.
4 Completely loosen the knurled nut that secures the split vent trap in place as shown in
Figure 38.
Figure 38. Loosen knurled nut
5 Slide the trap assembly back from the guided mounting bracket and tilt up to expose the
filter as shown in. Figure 39.
Knurled nut secured
Knurled nut loosened
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