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Leave exposed the piston, clean it with isopropanol
or ethanol and lubricate lightly.
For 20µl, 100µl, 200µl Single channel models:
lubricate only the useful part of the piston
(20 ±5 mm length) and the O-ring.
For 1000µl single channel model:
lubricate the piston.
For 5000µl, 10mL single channel model:
disassemble the seals, lubricate their internal part
and lubricate the piston. Do not lubricate the O-ring.
Reassemble the pipette (refer to the figure 16).
Tighten the connecting nut (turn counterclockwise).
Refit the tip-ejector (see above).
Changing the seals
The O-ring and seal are on the piston; if worn or dam-
aged in any way (chemical or mechanical), they must be
replaced. As the models 2µl and 10µl single channel
models contain miniaturized parts, it is best not to
disassemble these pipettes yourself, please contact
your Supplier Service Center.
The dimensions of the O-ring vary depending on the
model of pipette.
Remove the tip-ejector (see above).
Unscrew the connecting nut by turning it clockwise.
Carefully separate the lower and upper parts.
Remove the piston assembly, O-ring and seal.
If necessary clean the piston and replace the seal ;
lubricate them lightly. Please place them in the cor-
rect order.
Reassemble the pipette (refer to the figure 16).
Tighten the connecting nut (turn counter clockwise).
Refit the tip-ejector (see above).
12B - MAINTENANCE FOR THE MULTI-
CHANNEL MODELS ONLY
USER'S
USER'S
GUIDE
GUIDE
17
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