Replacing fuses
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17. In the 2707 Console, exit the interactive display by selecting 2707
Auosampler from the directory tree.
18. In the Maintain menu of the 2707 Console, click Replace > Syringe.
19. At the syringe connection port, install the Teflon seal in the syringe
valve.
Recommendation:
Install a new seal in the valve. If you choose to reuse
the seal from the old valve, be sure to orient it in its original position.
20. Fill the new syringe with degassed wash solvent, preferably methanol.
Recommendation:
Remove air bubbles from the syringe.
21. Connect the plunger of the filled syringe to the syringe drive by pushing
it straight onto the clip.
Requirement:
Keep the top threaded end below the syringe valve.
22. Raise the syringe, and screw it firmly into the connector.
23. In the Replace Sample Syringe window, click Reset.
Result:
The syringe moves to the home position and dispenses its
contents to waste.
24. Using the Control menu of the 2707 Console, perform a standard wash
routine.
Result:
All tubing connected to the syringe valve refills and flushes.
25. Purge all air bubbles from the syringe and buffer tubing by repeatedly
washing the needle or removing and repriming the syringe with
degassed, nonaqueous organic solvent.
Replacing fuses
The instrument has two 2.5 A fuses in its rear fusebox. Install fuses of the
same type and rating.
Tips:
•
An unlighted LED may indicate a blown fuse.
Warning:
When replacing fuses, disconnect the instrument from its
power source and use only fuses of the size and rating indicated on the
fuse panel or holder or the spare parts list.
