10 Maintaining the VI
To Clean the VI
Maintaining Your GC 173
To Clean the VI
1 Gather the following:
• 1/4-inch and 7-mm wrench
• T-20 Torx screwdriver
• Lint-free gloves
2 Manually set the inlet and oven temperature to < 40 °C, and wait for the inlet, oven, and
other parts you might come into contact with inside the oven, to cool before continuing.
Alternately, place the GC in maintenance mode: Maintenance > Instrument > Perform
Maintenance > Maintenance Mode > Start Maintenance.
3 Remove the interface. See “To Remove the VI Interface” on page 171.
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 and line 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.
4 Remove the split vent and pressure sensing lines by loosening the nuts.
Wear clean, lint-free gloves to prevent contamination of parts with dirt and skin oils.
5 Clean the interface using an ultrasonic bath. Sonicate twice, then rinse and air dry.
6 Inspect the split vent line. If clogged, contact Agilent for service.
7 Install the interface. See “To Install the VI Interface” on page 174.
8 Exit maintenance mode. Select Maintenance > Instrument > Perform Maintenance >
Maintenance Mode > Finished.
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