Replacing The O-Rings - Qiagen BioRobot M48 User Manual

Preventive Maintenance
6.2.2

Replacing the O-rings

Replacement of the O-rings of the pipettor head is required if
they look worn-out or damaged during the weekly
maintenance procedure.
1. Switch on the BioRobot M48 and open the QIAsoft M
2. Select "Manual Operation/Greasing O-rings".
3. Close the QIAsoft M software and switch off the
4. Remove the O-ring from each tip adapter using
5. At the bottom of each tip adapter, wipe clean the groove
6. Ensure that the new O-rings are not turned inside out
7. Attach an O-ring at the bottom of a tip adapter.
8. Pull upward the side of the O-ring that is at the back of
9. Pull forward and upward the side of the O-ring that is at
10. Check that the O-ring is fitted correctly onto the tip
11. Repeat steps 7 to 10 for the remaining tip adapters.
12. Switch on the BioRobot M48 and open the QIAsoft M
13. Grease the O-rings (page 6-5).
6-6
software (Section 5.2.1, page 5-2).
The pipettor head moves to the front of the worktable,
the 6 tip adapters move down and become accessible,
and the workstation door unlocks.
BioRobot M48 (Section 5.2.5, page 5-5).
needle-nosed pliers.
for the O-ring.
(i.e., the O-ring should appear completely flat and not
warped).
the tip adapter.
the front of the tip adapter.
adapter: the inside of the O-ring must be in complete
contact with the surface of the tip adapter.
If the upper part of the O-ring is bending outward, push
it inward using a finger or a spatula.
software.
QIAGEN BioRobot M48 01/2003