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Remove the tip-ejector (see above).
Unscrew the connecting nut by turning it counterclockwise.
Carefully separate the lower and upper parts.
Remove the piston assembly, O-ring and seal.
Clean and decontaminate the piston assembly.
Reassemble the pipette (refer to the figure, page 13).
Changing the Tip-ejector
To remove the tip-ejector, keep the tip-ejector button
depressed and pull down on the anged upper part
of the tip-ejector with the other hand.
To ret the tip-ejector, keep the tip-ejector button
depressed, slide the end of the tip-ejector over the
end of the tip-holder and push the plastic end of the
tip-ejector back into the body of the pipette until it
is gripped rmly by the metal tip-ejector rod.
Changing the Tip-holder – no tools required
Remove the tip-ejector (see above).
Unscrew the connecting nut by turning it counterclockwise.
Carefully separate the lower and upper parts.
Remove the piston assembly, O-ring and seal.
Clean, autoclave, or replace the tip-holder.
Reassemble the pipette (refer to the figure, page 13).
Tighten the connecting nut (turn clockwise).
Refit the tip-ejector (see above).
Servicing the Piston Assembly
You may remove the piston assembly for cleaning purposes only. If the piston assembly is changed, the pipette
must be adjusted and calibrated in a Gilson authorized
Service Center.
The piston assembly must not be autoclaved.