To Replace A Needle In A Syringe - Agilent Technologies Agilent 7890 Series Maintenance Manual

7
Maintaining the COC Inlet

To Replace a Needle in a Syringe

122
1 Gather the following (see
for injections onto 0.25- mm fused silica columns," on
page 103):
• Syringe barrel
• Needle, 250- µm or 320- µm
2 Unscrew the syringe barrel cap and remove the spring.
3 Make sure that the needle has the PTFE disk as shown
below. If the syringe barrel does not have the PTFE disk,
use the instructions in the syringe box to wrap the
needle.
Plunger
Barrel
Needle
Spring
Cap
Check the new needle for a small wire inserted for
4
shipment. Remove the wire if present.
Slide the spring and the cap over the needle.
5
Insert the needle into the syringe barrel.
6
Screw the cap back on the syringe barrel.
7
Table 15, "Recommended parts
PTFE disk
Stop
Needle
Maintaining Your GC