Agilent Technologies 7820A Service Manual page 49

Agilent 7820 GC Service
49
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.
Turn off all gas flows at their sources.
Inlets, detectors, and the oven are insulated
with fibrous materials which may cause
irritation to skin, eyes, and/or mucous
membranes. Always wear gloves when working
with the insulation.
insulation is flaky/crumbly, wear protective
eyewear and a suitable breathing mask and/or
respirator.
Disconnect the column from the bottom of the detector.
Remove the right side electronics panel.
Access the FID module by unscrewing the single T-20 screw
holding the GC cover over the detector(s).
Raise it out of the way or remove it temporarily.
Disconnect the heater/sensor cable from the heater/sensor
connector.
Additionally, if the