10-18 Routine Maintenance
7. Fit the new septum to the inlet cap with the grey Teflon side facing
downwards, and the yellow rubber side facing upwards.
8. Refit and loosely tighten the inlet cap.
9. Push a septum-piercing syringe needle through the septum.
10. Finger tighten the inlet cap.
11. Remove the syringe needle from the septum.
12. Open the reference reservoir valve.
13. In the MassLynx Tune window, click Vacuum > Pump Source.
EI/CI inner source maintenance
Cleaning the EI and CI inner sources
The EI and CI inner sources are easily removed for maintenance.
See also: Inner source assembly on page 1-4 and Changing the EI/CI inner
source assembly on page 2-2.