Maintenance 8
Installation, Operation, and Maintenance 145
Part 3, Maintenance and Troubleshooting
Replacing Syringe Needles
The stainless steel needles used for 250-µm and 320-µm injections must be
inserted into a glass syringe barrel (the 5-µL syringe barrel is
part no. 5182–0836). Select the correct size needle for the column you will use.
Needles for 250-µm injections (part no. 5182-0833, 3/pk) have silver-colored
stops. Needles for 320-µm injections (part no. 5182-0831, 3/pk) have
gold-colored stops. See your Agilent catalog for consumables and supplies for
a complete list of syringes and needles.
To insert a needle into a syringe barrel (Figure 58):
1 Unscrew the syringe barrel cap and remove the spring.
2 Make sure the needle has the Teflon disk as shown in Figure 58. If the
syringe barrel does not have the Teflon disk, use the instructions in the
syringe box to wrap the needle yourself.
3 Slide the spring and the cap down over the needle.
4 Insert the needle into the syringe barrel.
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