Thermo Scientific TRACE GC Ultra Maintenance And Troubleshooting Manual page 304

Chapter 14
Maintaining a Flame Photometric Detector
9. Loosen the three Allen screws that fix the filter
support to the flange of the detector body and
remove it.
10. Turn down slowly the detector body and let the
filter-side heat shield come out from the flange.
Pay attention not to lose the O-ring inserted in
the filter support.
11. If you want to replace only the filter-side heat
shield, go to # 21. If you want to replace the
flame-side heat shield, loosen the three Allen
screws that fix the flange to the detector body
and remove it with the spacer that should
remain inserted in the flange. Now you could
access the flame-side heat shield and the
relevant graphite seal.
304
Replace the Heat Shields
Maintenance and Troubleshooting Manual