Eppendorf Reference - Manuel (Page 30)

101
Inserting the seals
Pull new seal off the pin and push screw, spring, seal (with plastic part first) in that
order onto side B of the wrench as shown in the figure and screw lightly into tip
cone. Do not tighten too much. Assemble pipette again.
10 – 100 μL, 50 – 200 μL and 50 – 250 μL (Fig. 3, 4, 5)
Filling tube (12)
– Unscrew lower part of the pipette.
– Push filling tube (12) (and damping tube (14) for 50 – 250 μL) out of the tip
cone from below with the wire punch. Push in new tube from above.
After the ejector sleeve has been pulled off, the tip cone together with the
seal (11) can be loosened with the wrench (A, narrow opening) and exchanged
(together with the seal. See Fig. 2 – 6).
Tighten the tip cone:
Place wrench with the wide opening (A, lettering facing the pipette tip) onto the tip
cone and tighten until it locks into position by turning half a revolution.
The wrench is designed in such a way that the tip cone cannot be tightened too
much.
Caution
After exchanging parts or completing other maintenance, always check that the
pipette functions correctly (see Part A, Section 5 and 7 of this Manual).
If a problem cannot be solved with the aid of the recommendations above, please
return the eppendorf Reference to your eppendorf appointed dealer.
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III Exchanging the filling tube
IV Exchanging the tip cone
Eppendorf Reference® – Part B – Maintenance