Agilent Technologies Agilent 7890 Series Maintenance Manual page 248

13
Maintaining the uECD
C A U T I O N
248
The makeup gas adapter will remain attached to the
supply tubing and hang suspended in the oven.
b Adjust the adapter's position so that maintenance can
be performed on the adapter easily and without
obstruction.
Unscrew and remove the adapter cap.
6
Wear clean, lint-free gloves to prevent contamination of parts with
dirt and skin oils.
Remove the fused silica indented mixing liner and inspect.
7
Replace it if it is broken or contaminated with sample or
graphite.
Ultrasonically clean the adapter cap in methanol. Clean
8
the outer surfaces of the makeup gas adapter with
methanol.
Install the fused silica indented mixing liner into the
9
makeup gas adapter, then install the cap. The indentation
on the fused silica indented mixing liner must be at the
cap end of the adapter.
Maintaining Your GC