176 Installation, Operation, and Maintenance
Part 3, Maintenance and Troubleshooting
10 Troubleshooting
Correcting Sample Vial Delivery Problems
When you find a mishandled sample vial, check:
✔ Are there folds or wrinkles in the crimp cap, especially near the neck of the
sample vial? For more information, see “Preparing Sample Vials” on
page 110.
✔ Are you using the correct sample vials? Is the distance from the vial bottom
to the top of the neck about 28.4 mm? Is the bottle neck diameter
8.2 ± 0.3 mm? For more information, see “Selecting sample vials” on
page 110.
✔ If you use labels on the sample vials, are they the correct size? For more
information, see “Labeling sample vials” on page 112.
✔ If you use labels on the sample vials, are they interfering with the gripper?
For more information, see “Labeling sample vials” on page 112.
✔ Are there any obstacles to the tray arm or injector turret motions? Remove
any obstacles.
✔ Are the tray quadrants and turret in good condition? Clean any residue
from the sample positions. Temperature-controlled liquid pumped through
the quadrants may cause quadrant distortion over time. See “Tray quadrant
temperatures and pressures” on page 181.
✔ Does the bottom of a sample vial touch the top of the turret? To adjust
gripper height, see “Setting sample tray setpoints on a 6890 GC” on page 91.
✔ Does the side of a sample vial touch the side of the turret hole as the vial is
raised or lowered? To adjust the tray arm location, see “Configuring the
injector on a 6890 GC” on page 89.