Agilent Technologies 6850 Series II - Page 108

Routine Maintenance: General
Maintaining a sampling valve (diaphragm type)
Released: March 2004 6850 Series II GC User Information page 108 of 256
7. Unscrew the center screw in the valve head with the hex key wrench, then
remove the valve head.
Caution Do not scratch the surface of the valve head.
Mounting posts
Valve head removed