Qiagen EZ2 Connect MDx User Manual page 154

7. Place the previously prepared filter-tip with grease applied to the inner wall at the wide end
onto the pipettor head, and rotate the filter-tip on the pipettor head to distribute the silicon
grease evenly.
8. Make sure that the O-rings are only moistened with grease and that there are no clumps of
grease visible. These could be removed with lint free cloth and greasing restarted.
9. Make sure that there is no grease present on parts other than the O-rings, especially on the
bar on top and the opening of the pipettors.
Note: The filter-tips should sit flush against the upper metal bar if the O-rings are properly
greased. There should be no gap (when a tip is attached manually). There should not be a
gap. Excess or insufficient grease can affect the performance of the EZ2.
Note: The opening in the nub of the pipettor should be checked after greasing to ensure no
grease is present within the opening.
Figure 152. Placing a filter-tip onto the pipettor head.
EZ2 Connect MDx User Manual 05/2022 154