14 | CORNING LAMBDA PLUS PIPETTORS
Problem
Cause
Solution
The pipettor
incorrectly
aspirates
the liquid or
liquid drops
out from the
pipet tip.
Damage to the
piston or seal due
to prolonged use
with chemically
aggressive liquids.
Replace the piston, seal, and
O-ring. Rinse the inside of
the shaft in distilled water
and dry. Lubricate the seal
and O-ring with the lubricant
which has been included
with each pipettor. The
replacement of the piston
requires conducting the
calibration procedure.
NOTE:
The parts of the single-
channel (2 μL and 10 μL)
pipettors should be lubricated
evenly with a minimum
amount of lubricant.
The pipettor is
reassembled
improperly.
Disassemble the pipettor and
reassemble it, observing the
proper sequence of steps.
No lubricant on the
sealing elements.
Remove the tip ejector.
Unscrew the shaft nut and
remove the shaft, piston
assembly, seal, and O-ring.
Rinse the removed parts
in distilled water and dry
thoroughly. Lightly lubricate
the inside surfaces of the
seal and the O-ring with
the included lubricant.
Reassemble the pipettor in
the reverse order.
Contamination of
the inside of the
pipettor caused by
extensive aspiration
of chemically
aggressive liquids or
because liquid got
inside the pipettor.
Contamination of the inside
of the pipettor caused by
extensive aspiration of
chemically aggressive liquids
or because liquid got inside
the pipettor.
If the problem continues after carrying out the above
steps, contact your Corning representative.
Before returning the pipettor, please ensure the pipettor
is completely free of any chemical, radioactive, or
microbiological contamination which could pose a threat
during transport and repair.
