CI Maintenance 5
5977B Series MSD Troubleshooting and Maintenance Manual 149
To Clean the Reagent Gas Supply Lines
Materials needed
• Clean, dry nitrogen
• Heat gun
• Tubing cutter (8710-1709)
Procedure
If the reagent gas lines become contaminated, they can be cleaned.
1 Disconnect the reagent gas tubing from the gas supply, the gas purifier, and
the MSD.
2 Cap the gas purifier following the instructions on the label.
3 Connect one end of the tubing to a supply of clean, dry nitrogen and turn
on the gas flow.
4 Use the heat gun to warm the tubing, starting at the supply end and
working your way to the free end.
5 Repeat for any other pieces of tubing that need to be cleaned.
6 Reconnect the tubing to the gas supply, gas purifier, and MSD. Follow the
instructions on the gas purifier label.
Do not heat the gas tubing when reagent gas is flowing.
Do not put liquids into the tubing. Do not heat the tubing when it is connected to the
MSD.
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