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5. Use a Torx T-20 screwdriver to loosen the
three captive screws that attach the inlet
weldment to the top of the inlet carrier.
New?
Figure 1-21. Removing the inlet from the top
of the GC
Released: April 2004
Heater/Sensor assembly
Captive screw
Insulation
6850 Series Gas Chromatograph Service Procedures
6. Slide the inlet up out of the inlet carrier. If
necessary, you can also slide the insulation
sleeve off of the bottom of the inlet.
7. Reinstallation is the reverse of removal.
Replacing the heater/sensor assembly
WARNING
Turn off the oven and turn off the inlet you
are working on and let them cool down. Turn
off the carrier gas supply pressure, then turn
off the main power switch and unplug the
power cord.
1. If necessary, remove the septum nut, cooling
tower and/or needle guide to provide access
to the two screws in the top of the cooling
fin.
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