Gilson Pipetman Ultra U2 User Manual page 21

Removing the Plastic Cover, Piston Assemblies and
Tip-holders
1) First set the pipette to its minimum volume.
2a) Remove the two screws, which
are located at either side of
the head, using a miniature
screwdriver.
2b) Gently pull the
ejector-cover away
from the head.
3) Remove the wire
clips and the wire
guides for 12
channels from the
piston tray-cover.
4) Lay the pipette fl at
and push awards
(with your thumbs)
on the catches
at either side of
the piston-tray
cover. The cover
will flip upwards
to reveal piston
and tip -holder
assemblies.
5) Lift the tip-holder upwards, away from the lower
rake, then push the tip-holder back along the axis
of the piston. Now, pull the piston away from the
upper rake and lift it and the tip holder out of the
tray, taking care not to lose or damage the piston
spring.
6) Gently pull the piston assembly out of the tip-
holder.
Servicing the Ejector-cover, Piston Assemblies and
Tip-holders
The tip-holders and piston assemblies must be
changed, if they are accidentally damaged or attacked
chemically.
Piston-tray Cover
Piston
Piston-tray Cover
Tip-holders
Wire
Guides
Wire Clips
Rake
(upper)
Rake
(lower)
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