Page 18 - Instruction Manual 2

Changing the O-Ring
The O-ring and seal are on the piston; they must
not be autoclaved, if worn or damaged in any way
(chemical or mechanical), they must be replaced.
The dimensions of the O-ring vary depending on
the model of pipette.
MAINTENANCE 1. Remove the tip ejector (refer to
Changing the Tip Ejector on page 15).
2.
Unscrew the connecting nut by turning it
counter-clockwise.
Carefully separate the lower and upper parts.
3.
Remove the piston assembly, O-ring and
4.
seal.
5. Clean or replace the seal then the O-ring.
6. Reassemble the pipette (refer to
Piston Assembly (Disassembled) on
page 16).
7. Tighten the connecting nut (turn clockwise).
8. Refit the tip ejector (refer to
Changing the Tip Ejector on page 15).
Cleaning and Decontamination
PIPETMAN Classic is designed so that the parts
normally in contact with liquid contaminants,
can easily be cleaned and decontaminated.
However, because the models P2 and P10 contain
miniaturized parts, it is best not to disassemble
these pipettes yourself; please contact your local
Gilson authorized service center.
You may refer to the
decontamination procedure
NOTICE available on the Gilson website
(www.gilson.com). Liquid must
never enter the upper part
(handle) of any pipette.

18 MAINTENANCE | PIPETMAN® ClAssIC PIPETMAN® ClAssIC | UsER’s GUIDE