Replacement Procedures; Removing The Inlet - Agilent Technologies 6890 Series Service Manual

210 Split/Splitless Inlet

Replacement procedures

Replacement procedures

Removing the inlet

WARNING Turn off the oven and turn off the heater of the inlet you are replacing and
let them cool down. Turn off all detector flows. Turn off the carrier gas supply
pressure, then turn off the main power switch and unplug the power cord.
1. From inside the oven, remove the column and column fitting from the
bottom of the inlet.
2. Remove the left side cover from the GC.
3. From the top of the 6890 GC, remove the blue inlet carrier cover (or the
tray bracket, if installed).
4. Unclip the heater/sensor leads from the connector to the left of the inlet
carrier.
5. Unscrew the top insert assembly (large inlet nut and flow lines on the
top of the inlet) that has the carrier gas and septum purge lines plumbed
to it.
6. Raise this assembly up and away from the inlet
Top insert assembly
Figure 210-5
8 of 30
Purge
Carrier in
Removing the inlet
Inlets
Agilent 6890 Gas Chromatograph Service Manual
Split vent flow line nut
Jun 2001