Powering Off And Venting The Tsq 9000 System - Thermo Scientific TSQ 9000 Hardware Manual

Thermo Scientific
1. Click the Yes button to continue the shutdown process. The heaters and turbomolecular
pump power off. Once the turbomolecular pump reaches 50% rpm, the foreline pump
powers off, and you may vent the system.
2. When the TSQ 9000 system's temperatures and pumps are ready for shutdown, the
vacuum light on the front of the instrument will start blinking rapidly.
3. Reach over to the left side of the instrument and push down on the power switch to
power-off the TSQ 9000 system.
Figure 64. Powering Off and Venting the TSQ 9000 System
Top Cover Panel Screw
4. Open the front door of the instrument.
5. Look behind the right side of the vacuum interlock shield and twist the vent valve knob
one and a half times in a clockwise direction to open the vent.
6. Wait five minutes for the system to vent.
7. Use a T20 Torxhead screwdriver to loosen the top cover panel from the interior front
panel.
Note There are also two hydrogen safety screws in the top cover that are installed at top
left and right. They must be removed before the top cover can be moved. The screw on
the top right might be blocked by the GC, and you might have to move the GC out of the
way.
8. Slide the top cover panel toward the back of the instrument and lift it off.
1
Vacuum Interlock Shield
Vacuum
Interlock Handle
Vent Valve Knob
Performing Routine Maintenance
Replacing a Dual Filament
Power Switch
TSQ 9000 Hardware Manual 73