Agilent Technologies 6850 Series II User Information page 107

4.
Loosen
5.
Remove screws
and washers
(2 places)
6.
Released: March 2004
Loosen the two valve box cover thumb screws and lift the cover off.
Remove the two screws and washers that hold down the valve sample loop
and the carrier gas inlet line.
Loosen the sample loop's two 1/4-inch fittings on the valve head and lift
the loop away from the instrument.
6850 Series II GC User Information
Routine Maintenance: General
Maintaining a sampling valve (diaphragm type)
Carrier gas
inlet line
Center screw
Valve sample loop
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