Disassembly Of Transferpette -8 / -12 Electronic Up To 300 Μl - BRAND Transferpette-8 electronic Operating Manual

10.2 Disassembly of Transferpette -8 / -12 electronic up to 300 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.
Cleaning instructions
a.
Clean individual shafts and pistons (only these parts) with soap solution or isopropanol. Then
rinse with distilled water.
b.
Allow the parts to completely dry and cool. Liquid residues in the shafts result in deviations in ac-
curacy.
c.
Re-grease pistons with a very thin coat of the grease supplied. For the central guide axis (Z), use
only the prescribed fluorine static grease.
d.
After assembling the unit, carry out a reference run (rEF).
Removing shafts and seals for cleaning or replacement
b.
c.
d.
Transferpette® -8/-12 electronic 997200
a.
Unscrew pipetting unit: Separate the pipetting unit
from the handle.
b.
Remove the pipetting housing: Turn both closures of
the pipetting housing cover by 90°, and pull off the
pipetting housing.
c.
Unscrew the shaft: Place the installation tool onto a sin-
gle shaft and unscrew the shaft.
d.
Remove seal: Push the piston unit all the way down. Re-
move and inspect the seal and clean or change as nec-
essary.
After removing the shaft, the seal is located either in the
shaft or on the piston.
NOTICE
Operating manual
10 Maintenance
73