Inlets and valves
6850
6850
Released: April 2004 6850 Series Gas Chromatograph Service Procedures 67
3. Remove the lid top cover. See “Lid top cover”
on page 1-23.
4. Open the lid. Disconnect the column from the
inlet. Remove the insulation cup and insula-
tion. Remove the bottom cover plate.
5. Close the lid.
6. Loosen the two screws in the connector
cover plate and slide the cover plate off.
Then, disconnect the ribbon cable connector
from the harness. Using a 7/16-inch wrench,
disconnect the gas input line form the mod-
ule. Next, remove the three mounting screws
that hold the module in place.
7. Trace the heater/sensor cable from the inlet
to the wiring harness connector. Disconnect
it at the harness.
8. Remove the three T-20 Torx screws holding
the inlet in the lid.
9. Lift the inlet assembly and module out of the
lid. Remove the remaining insulation from the
hole under the inlet.
Inlet and flow module installation
1. Place the bottom insulation ring in the inlet
hole.
2. Align the long sides of the hole in the block
insulation sleeve to be parallel to the long
sides of the lid, then place the insulation in
the hole.
3. Lower the inlet assembly into the block insu-
lation sleeve. Route the module tubing along
the side of the lid. Place the module assem-
bly into its slot.
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