Maintain the sample management system
July 29, 2013, 715003794 Rev. B 215
To install the seal pack with needle:
1. With the seal pack with needle removed from the injector, rotate the
injector’s motor shaft until the needle tee is furthest from the injector
base (see the figure “Injector assembly components:” on page 211).
2. Place the needle compression screw and ferrule onto the upper end of
the needle.
3. Position the seal pack with needle so that the stainless steel
needle-wash lines face the channel in the back of the injector.
4. Align the 4 holes in the seal pack and injector base, and insert the seal
pack with needle into the injector base, guiding the needle and ferrule
into the needle tee until it seats, and then hand tighten the compression
screw.
5. Secure the seal pack to the injector base using the four M3 screws.
6. Use the 5/16 open-end wrench to tighten the needle compression screw.
7. Verify the needle port is aligned with the scallop in the seal pack (see
the figure “Align the needle port:” on page 214).
Requirement: To prevent chromatographic inconsistencies, ensure the
orientation of the needle port is correct. To verify needle port
orientation, rotate the motor drive shaft to push the needle through the
seal pack until the needle port is visible, and then verify that the needle
port is aligned with the scallop on the seal pack. If you need to readjust
the needle port orientation, use the procedures, above, to remove the
seal pack with needle and to replace the needle.
To reinstall the injector assembly:
1. Lower the injector so that its base seats in the compartment floor, and
then secure it with the two captive screws (see the figure “Remove the
injector assembly:” on page 212).
2. Reconnect the two needle-wash lines to the stainless steel connecting
lines at the bottom of the injector.
Caution: To avoid damaging the injector and/or needle-wash
tubing, ensure that the tubing is not pinched between the injector
and the compartment floor when you reinstall the injector
assembly.
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