Replacing The Turbomolecular Pump; To Install Or Replace The Turbomolecular Pump - Thermo Scientific TSQ 9000 Hardware Manual

3
Advanced Troubleshooting

Replacing the Turbomolecular Pump

Replacing the Turbomolecular Pump
410 TSQ 9000 Hardware Manual
The turbomolecular pump is a multi-stage axial-flow turbine in which high speed rotating
blades provide compression by increasing the probability of gas molecules moving in the
pumping direction. The turbomolecular pump is optimized for molecular flow conditions
and requires the use of a rough pump to exhaust to atmosphere.


To install or replace the turbomolecular pump

Note See the ISQ and TSQ GC-MS Spare Parts Guide for ordering information.
1. Shut down your system by following the steps in
on page 127. You do not have to remove the ion source cartridge.
2. Use a T20 Torxhead screwdriver to loosen the top cover panel screw from the front panel.
If you are using hydrogen you must also remove the hydrogen safety screws. Slide the top
cover panel toward the back of the instrument and lift it off.
3. Use a T20 Torxhead screwdriver to remove the five screws on the right side panel.
Figure 436. Removing the Right Side Panel Screws
4. Make sure the electrometer board cable is not in the way when you remove the power
module.
5. Disconnect the power cables from the side of the TSQ 9000 instrument.
"Shutting Down the TSQ 9000 System"
Right Side
Panel Screws
Thermo Scientific