Eppendorf Research Family - fix, variable, multi - Manual (Page 24)

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Fixed- and adjustable-volume (variable) pipettes up to 1000 µL
(see Fig. 1 / point 5):
– Disassemble the pipette.
– Undo the screw (6) using side C of the wrench.
– Tap out the spring (7), the press piece (9) and the seal (8). Replace the seal.
– Attach the spring to the new seal and then insert both parts, together with the
screw, into the pipette lower part and tighten.
The pipette lower part (10) is also available as a complete unit, with seal.
Research, adjustable-volume (variable), 500 – 5000 µL (see Fig. 1 / point 6):
– The seal is changed by replacing the piston (6).
– Hold down the ejection button and pull off the ejection sleeve (12) using force.
– Unscrew the cylinder (11) by turning it to the left.
– Press and hold down the operating button and pull off the piston (3) using
force.
– Slide the new piston onto the piston rod up to the stop.
– Screw the cylinder onto the cylinder attachment (5).
For autoclaving:
– Remove the piston (3), as described above.
– Slide the disassembly aid over the cylinder attachment (5) and unscrew it from
the pipette upper part by turning it to the left.
– After autoclaving, screw the cylinder attachment with the piston rod (2) and
stroke spring (4) into the pipette upper part.
– Slide the piston (3) onto the piston rod up to the stop.
– Screw the cylinder onto the cylinder attachment.
Research variable 1 – 10 mL (see Fig. 1 / point 7):
the seal is changed by replacing piston (3).
– Pull protection filter (14) down out of the nose cone.
– Unscrew the complete lower part (10) from the grip by turning to the left, not
turning the ejection sleeve (12) at the same time. The ejection sleeve comes
out of its bracket automatically during turning and can be removed from the
lower part.
Research – Part B – Maintenance
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