3 Installing Intuvo 9000 GC Columns
To Install a Column Guard or Jumper Chip
5977B Series MSD Operating Manual 65
1 Prepare the GC for maintenance. From the GC panel select Maintenance >
Inlets > Guard Chip > Prepare for Maintenance >Replace Liner and Guard
Chip > Start Maintenance. This procedure cools the inlet, detector, column,
Guard Chip, and other components in the flow path heated zones to < 40 °C
and configures the GC. Follow the on-screen GC prompts.
2 From MassHunter Data Acquisition, Vent the MSD (See “To Vent the
MSD” on page 136.)
3 Wait until the GC reaches the ready state indicating the components are
cooled below 40 °C and the instrument is vented before continuing the steps
in this procedure.
4 If you are using hydrogen or other flammable gas as a carrier gas or for the
JetClean system, close the manual gas supply valve to the instrument before
turning off the MSD power.
5 If installed, remove the ALS injector from the inlet.
6 Remove the inlet cover. (See Figure 12.)
7 Open the GC front door.
8 Open the bus door and remove it by lifting the door vertically off its hinge
pins.
Figure 12. GC inlet cover and compression bolt access plate
GC inlet cover
removed
Compression bolt
access plate
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