10 Maintenance
e.
f.
g.
10.3 Disassembly of Transferpette -8 / -12 electronic
1250 µl
The three main components of the pipetting unit can be easily separated and disassembled for main-
tenance, cleaning or replacing parts. The procedure is explained in detail on the following pages.
Changing the O-rings on the individual shafts is described in detail in the instructions included with
the replacement part.
74
Operating manual
e.
Remove piston: Place the installation tool onto the pis-
ton nut and unscrew it. Remove piston nut, and pull out
piston.
f.
Mount piston: Insert cleaned or new piston. Tighten the
piston nut again using the installation tool.
g.
Assemble the piston and shaft unit: Loosen the shafts
by half a turn. Then place the shaft unit on the piston
unit and fasten it. Then screw on the shafts.
h.
Assemble pipetting unit: Reassemble the pipetting unit
and mount it on the handle. Check the instrument for
leaks, free movement, and precision.
The pipetting unit must be screwed onto the handle in a
counter-clockwise direction until it clicks into place. Do not
pull the pipetting unit downwards.
i.
Carry out reference run: Carry out reference run (rEF).
NOTICE
Transferpette® -8/-12 electronic 997200