Waters Xevo TQD Operator's, Overview And Maintenance Manual page 107

Caution:
always place it on its flanged base.
3. Rotate the tool and collar counter-clockwise and then lift them to remove
the sample cone from the cone gas nozzle.
4. Remove the O-ring from the sample cone.
Cone gas nozzle handle
The sample cone is fragile. Never place it on its tip;
Cone gas nozzle
Cleaning the sampling cone assembly
O-ring
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