Thermo Scientific TSQ 9000 Hardware Manual page 257

Thermo Scientific
5. Twist the vent valve knob one and a half times in a counter-clockwise direction to open
the vent.
Figure 225. Venting the TSQ 9000 Mass Spectrometer
6. Wait five minutes for venting to complete.
CAUTION - INSTRUMENT DAMAGE Do not proceed until the instrument is vented, or
pieces of the column or ferrule might blow into the instrument. To ensure that the
instrument is vented, check how much the glass cover compresses the top cover o-ring in
the manifold. Once the o-ring surface touching the glass is about 1 mm, it is safe to open
the instrument and remove the column.
7. Use a T20 Torxhead screwdriver to remove the four screws around the manifold door. See
Figure 217.
Note Remove the screws completely so that they do not scratch the manifold when you
close the door.
3
Advanced Troubleshooting
Replacing Components of the Ion Source
Vent Valve Knob
TSQ 9000 Hardware Manual 229