The Change Needle, Loop, and Seat function grants easy access to the needle, the sample loop, and the needle seat by moving the needle and the gripper arm into predefined positions.
The execution of this function encompasses the following elementary steps when the Agilent Lab Advisor Software is used:
Select Maintenance Positions from the list under Service & Diagnostics.
Under Task Selection, select Change, Needle, Loop and Seat and click Start.
Specify the type of the seat and loop capillary being installed in the Verify capillary configuration dialog box and click Continue.
Wait until the needle arm moves into the upper position.
Remove the safety cover and move the wash port safety flap to the service position by slightly lifting it up and then flapping it to the left.
Confirm that the wash port safety flap is in the service position and click Next to continue.
WARNING
Sharp needle
Risk of injury due to moving needle.
Wait until the needle moves down and stops ca. 2 mm above the needle seat.
Remove the sample loop, see Exchange the Sample Loop Assembly and the needle, see Exchange the Needle Assembly and click Next to continue.
Remove the sample loop, see Exchange the Sample Loop Assembly and the needle, see Exchange the Needle Assembly and click to continue.
Replace the needle seat, see Exchange the Needle Seat Assembly, and click Next to continue.
Replace the needle seat, see Exchange the Needle Seat Assembly, and click Next to continue.
Install the new needle, see Exchange the Needle Assembly, and click Next to continue.
Install the new needle, see Exchange the Needle Assembly, and click Next to continue.
Reconnect the old sample loop or install a new one if needed, see Exchange the Sample Loop Assembly, and click Next to continue.
Reconnect the old sample loop or install a new one if needed, see Exchange the Sample Loop Assembly, and click Next to continue.
Ensure that the needle tip is concentric with the seat. Use the Move Up and Move Down buttons to move the needle closer to or further away from the seat.
Click Next and wait until the needle arm moves into the upper position.
Move the wash port safety flap back to its original position.
Confirm that the wash port safety flap is in the correct position and click Next.
Reinstall the safety cover back to the needle station and click Next to continue.
Wait until the needle moves back to the needle seat. In the following pop-up dialog box, specify whether the EMF counters of the needle and the needle seat should be reset, then click OK.
Select Back in the bottom right corner to exit the Maintenance Positions function.
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