Eppendorf Research Family - fix, variable, multi - Manual (Page 26)

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A Replacing the O-rings
– Hold down the ejection button on the side of the pipette and unscrew the
lower part counterclockwise from the grip.
– Using your index finger, press the tool from behind against the nose cone.
Using your thumb, apply pressure from the other side.
– The O-ring is severed at one point and can be removed from the nose cone.
Attaching a new O-ring
– Attach the assembly aid (shortened pipette tip) onto the nose cone.
– Slide the new O-ring over the tip and onto the nose cone.
B Replacing the piston seals
– Hold down the ejection key and unscrew the lower part (Fig. 2-6)
counterclockwise from the grip.
– With the cone facing downwards, place the pipette lower part horizontally
onto a table and press it down slightly.
– Press side B of the tool into the opening (Fig. 2-8) in the housing (Fig. 2-9).
The two stop hooks on the inside are depressed and the cover
plate (Fig. 2-7) pops up!
– Push opening A of the tool
(suitable for the pipette size at
hand) from below over the
nose cones in such a way as
to ensure that the sharp edge
in the opening of the tool is
overlapping with the O-ring
(see Fig. 6).
II. Multi-channel model
C A
B
Fig. 6
Research – Part B – Maintenance
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