Inlets and valves
6850
6850
Released: April 2004 6850 Series Gas Chromatograph Service Procedures 95
11. Replace the PTV inlet assembly and reassem-
ble in reverse order. To attach the cryo line
to the new inlet assembly, tighten the nut
finger tight, then 1/4 turn more using two
open end wrenches.
12. Check the system for leaks.
Replacing the CO
2
or LN
2
inlet cryo
assembly
1. Once the PTV with cooling assembly is
removed, the cryo assembly on the inlet can
be replaced.
2. Remove the PTV inlet as described under
Replacing the PTV with cooling assembly.
3. Remove the three screws on the cryo assem-
bly from the PTV inlet, and remove the cryo
assembly.
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