Main components of the pipetting unit
A
A
A
Complete piston shaft system with central guide axis (Z) connected to the pipetting housing cover [II]
(channel identification can be read here).
B
Piston–shaft units inserted in the frame [I] of the pipetting unit. The units consist of the piston (with
seal) (B') and the stem (with O-ring) (B"), which can be disassembled for cleaning, lubrication, and re-
placement.
C
Pipetting housing connected to the pipetting housing cover [II] by two sliding catches.
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).
Transferpette® -8/-12 electronic 997200
II
B
Z
B'
I
B''
10 Maintenance
C
Operating manual
75