Maintaining air needles 3-13
9. Install the new air needle assembly.
Requirement: Make sure the air seal encircles the needle.
10. Using the needle connection nut, tighten the needle assembly.
11. Connect the other end of the needle connection tubing to port 4 of the
injection valve.
Recommendation: To avoid blocking the tubing, finger tighten only.
12. In the new Replace Needle window, click Reset.
Result: The air needle returns to the home position.
13. Clean the new needle by clicking “Wash needle” from the Control menu
of the 2707 Console.
14. If needed, use the Adjust Needle Position function to finetune the x-y
injection position.
15. In the Configuration Settings window of the 2707 Console, program
needle height for the new needle.
Caution: To prevent the needle from touching the bottoms of vials
when using trays with 12 or 48 vials, make sure the needle height
setting is > 2 mm.
Height adjustment nut
Locking nut
Even
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