HP 5890 SERIES II Service Manual page 23

PACKED COLUMN INLET
Remove/Replace Packed Column Inlet
HAZARDOUS VOLTAGES ARE PRESENT IN THE
INSTRUMENT WHEN THE POWER CORD IS
CONNECTED.
DANGEROUS
DISCONNECTING THE POWER CORD BEFORE
WORKING ON THE INSTRUMENT.
1. Set the main power line switch to the off position.
2. Disconnect the power cable from its receptacle.
3. Allow time for the oven and heated zones to cool.
4. When the heated zones are cool, turn off all gas
supplies.
5. At the bottom of the inlet(s) to be removed, in-
side the column oven, remove the column and
hardware associated with the inlet(s) (liner,
column/liner nuts, ferrules, makeup gas adapt-
er, etc.).
6. Remove the injection port cover by grasping its
back edge and lifting it upward.
7. Remove the two screws securing the left side
panel along its bottom edge.
8. Slide the left side panel towards the
rear of the instrument and lift.
SCREWS
9. Disconnect the Carrier Gas Inlet which con-
nects to a fitting either at the EFS, a chemical
filter, or a mass flow controller mounted on the
flow panel.
10. Inside the column oven, cap the base of the
inlet.
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AVOID A POTENTIALLY
SHOCK HAZARD
LID SHAFT
LEFT
SIDE
PANEL
BY
INJECTION PORT COVER
CARRIER
GAS
INLET
FITTING
SVC 2- 2
RED O VISIBLE
OFF ON
TOP COVER
1/4- INCH
SCREW
AND
WASHER