16 | AXYGEN AXYPET PIPETTORS
Problem
Cause
Solution
The pipettor
incorrectly
aspirates
the liquid
or the liquid
drops out
from the tip.
The pipet tip is
incorrectly pressed
onto the pipettor
shaft.
Press the pipet tip firmly.
The shaft nut is
loose in the single-
channel pipettors
2 μL to 1,000 μL.
Tighten the shaft nut.
The sealing surface
of the shaft is
cracked or scored.
Remove the tip ejector.
Unscrew the shaft nut and
inspect the shaft and the
piston assembly. Replace
the damaged parts. When
reassembling the pipettor, the
nut should be hand-tightened.
In the single-channel pipettor
model, the damage of the
shaft may also cause a damage
of the piston assembly. Replace
the damaged parts. When
reassembling the pipettor, the
nut should be hand-tightened.
To remove the tip ejector in
models AP-5000 and AP-10ML,
remove the ejector pushbutton
and using a screwdriver
unscrew the tip ejector by
turning the screwdriver
counterclockwise.
