Preventive Maintenance

Split/splitless capillary inlets

Figure 8-7

Solenoid Valve

Assembly

Solenoid Valve, Split/Splitless Capillary Inlet

Cleaning

Turn off the heated zone for the inlet and allow it to cool.

Remove septum retainer nut, septum, insert retainer nut, and inlet insert; also remove the column. Using a suitable light source, illuminate the inside of the inlet. If there is evidence of contamination or deposits, the inlet should be cleaned.

Use a swab and an appropriate solvent to scrub interior walls until deposits are removed. A suitable wire may be used to dislodge solid particles carefully. Dry thoroughly with compressed, filtered, dry air or N1 before reassembling. Vent lines can be removed for cleaning or replaced as necessary.

Compressed, dry air or N1 may also be used to blow out any loose contaminating particles.

WARNING To avoid possible eye injury, wear eye protection when using compressed gas.

168