Removing The Valve Bracket - Agilent Technologies 7820A Service Manual

214
Agilent 7820 GC Service

Removing the valve bracket

1 Cool down the oven.
Turn off the GC main power switch and disconnect its power
cord.
Hazardous voltages are present in the
mainframe when the GC power cord is connected.
Avoid a potentially dangerous shock hazard by
disconnecting the power cord before removing
any GC panels.
Components can be damaged by static electricity:
be sure to wear an ESD strap grounded to the GC
chassis while performing this procedure.
Remove the GC right side cover.
Remove the ALS board. See Replacing the ALS board.
Remove all cables connected to the upper side of the valve
bracket (the illustration shows 2).
Loosen the screws at the top left and top right corners of the
bracket. Remove the bracket.