To Replace The 6 Port Valve Rotor - Agilent Technologies 7697A Maintenance Manual

3
Maintenance

To Replace the 6 Port Valve Rotor

6 port valve cover
46
1 Gather the following:
• Lint- free gloves
• 1/4- inch wrench
• Pencil magnet
2 Set your GC oven, Headspace oven, and transfer line to
ambient temperatures and wait for them to cool.
Once the GC oven, Headspace oven, and transfer line have
3
cooled to ambient temperature, turn the Headspace off
and unplug the power cord.
Turn all gas flows off at their sources.
4
Access the pneumatics area:
5
Remove the pneumatics front cover. See
a
the Pneumatics Front
b Remove the valve thermal enclosure. See
the Valve Thermal
Depending on your hardware configuration, do one of the
6
following:
• Remove the loop cover and valve cover
"To Remove the Loop Cover"
Cover".
• Remove the valve/loop cover. See
Valve/Loop Cover".
Figure 31 The valve and loop covers
Cover".
Enclosure".
and "To Remove the Valve
"To Remove the
"To Remove
"To Remove
(Figure 31). See
Sample probe cover
Sample loop cover
Maintenance