Thermo Scientific EASY-nLC 1200 Troubleshooting And Maintenance Manual page 109

Thermo Scientific
Figure 68. Removing the black needle holder from the slot in the metal plate
7. Loosen the nut that is connected to the z-axis needle holder by turning it
counterclockwise (Figure
away from the holder.
Figure 69. Autosampler needle connected to the z-axis needle holder
❖ To install a new autosampler needle
1. Mount the new autosampler needle in the z-axis holder. Check that the small spring is
situated between the PEEK nut and the plastic stop.
2. Guide the end of the needle that connects to valve S through the large hole in the metal
plate that separates the tray compartment from the solvent system compartment.
3. Install the black needle holder in the side plate.
4. Connect the needle to port 1 of valve S as follows:
Black needle holder
69). Then carefully pull the autosampler needle upward and
Z-axis needle holder
5
Routine Maintenance
Replacing the Autosampler Needle
Slot in the
metal plate
Troubleshooting & Maintenance Guide 87