Thermo Scientific TRACE GC Ultra Maintenance And Troubleshooting Manual page 200

Chapter 11
Maintaining a FID
4. Disconnect the signal and ignition cables from
the detector.
5. Loosen the fixing nut on the front of the
detector cell and remove it.
6. Using the tool provided with the GC, unscrew
the worn jet from the detector base body.
200 Maintenance and Troubleshooting Manual
Replace the Jet