7 Maintenance
214 July 29, 2013, 715003794 Rev. B
To replace the needle in the seal pack:
1. With the seal pack removed from the injector, lubricate the tip of the
injector needle with 100% alcohol.
2. Align the needle port with the scallop located on the underside of the
seal pack, before sliding the seal pack onto the needle (see the figure
“Align the needle port:” on page 214).
Tip: If you orient the needle port 1/8 inch to the left of the scallop, it
should align with the scallop when you tighten the compression screw.
Align the needle port:
Caution: To prevent damaging the needle, hold the needle only by
its end opposite the tip (needle port end). Use a clean wipe with
100% alcohol to clean the needle after installation.
Scallop marking needle
port alignment
Restrictor loop
connection
Needle wash
lines
Seal pack
assembly
Injector base
(bottom view)
Column fluidic
line connection
M3 seal pack screws (4)
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