BRAND Transferpette S Gebrauchsanleitung Seite 30

Transferpette ® S up to 1000 µl
Servicing
Inspect the pipette tip cone for damage.
Inspect the piston and seal for contamination.
Test the instrument's piston seal. To do this, affix a tip, and
aspirate a sample. Hold the instrument vertically, with the
sample in the tip for approximately 10 s. If a drop forms at
the tip orifice, see the troubleshooting guide on page 36.
Disassembly and cleaning
1.
Unscrew the pipette shaft (S) from
the hand grip.
2.
Unscrew the upper part of the ejector (A)
from the pipette shaft.
3.
Pull the shaft (B, C and D) out of the
lower part (E) of the ejector.
4.
Unscrew the piston unit (B).
Piston remains connected
Note:
with piston unit (B)!
5.
Remove the seal with spring (C)
(this is non-removable on 1 µl and
10 µl Transferpette
6.
Clean the parts shown with a mild soap
solution or isopropanol and then rinse with
distilled water.
7.
Allow the parts to dry (max. 120 °C/248 °F).
8.
Oil piston with a very thin layer of supplied
silicone oil.
9.
Assemble the ambient temperature parts in
reverse order from above. Piston unit and
upper part of the ejector (A, B) should only
be hand-tight.
Servicing and Cleaning
® S models)
S
(For illustration
purpose only)
A
B
C
D
E
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