Large Feedthroughs; To Replace The Large Feedthroughs, O-Rings, And Screws - Thermo Scientific TSQ 9000 Hardware Manual

Large Feedthroughs

Thermo Scientific


To replace the large feedthroughs, o-rings, and screws

Note See the ISQ and TSQ GC-MS Spare Parts Guide for information about ordering
these components.
1. Shut down your system by following the steps in
on page 127.
Note You do not have to remove the ion source cartridge or the column. However, you
must vent the instrument.
2. Slide the top cover panel toward the back of the instrument and lift it off.
3. Disconnect the electrometer board cable and large feedthrough cables labeled Dynode
and Electron Multiplier.
Figure 305. Disconnecting the Electron Multiplier Cables
Electrometer
Board Cable
4. Use a T20 Torxhead screwdriver to remove the screws around the large feedthroughs.
5. Replace the large feedthroughs, o-rings and screws.
6. Use a T20 Torxhead screwdriver to remove the four screws at each corner of the electron
multiplier plate.
CAUTION - ELECTRICAL HAZARD Avoid dropping screws between chassis and side cover
or board. If you drop a screw, find it before powering the instrument on again.
3
Advanced Troubleshooting
Replacing Components of the Electron Multiplier
"Shutting Down the TSQ 9000 System"
Dynode
Electron
Multiplier
Electron
Multiplier Plate
TSQ 9000 Hardware Manual 281