Eppendorf Research Family - fix, variable, multi - Manual (Page 23)

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For fixed- and adjustable-volume (variable) pipettes up to 100 µL (see Fig. 1 /
point 3):
– Disassemble the pipette.
– Using side B of the wrench, undo the screw (6) and tap out the internal spring
(7).
– Press in side C of the wrench, pull out the seal and O-ring (8) and replace.
– Push the screw, followed by the spring, followed by the seal (with the O-ring
facing downwards) onto side B of the wrench and then rotate it into the pipette
lower part (do not over-tighten).
The pipette lower part (10) is also available as a complete unit, with seal.
Replacing the filling tube (13)
– Disassemble the pipette lower part.
– After removing the seal, push out the filling tube from below using the wire
punch and push in a new tube from above. Replace the seal at the same time.
Research, adjustable-volume, 20 – 200 µL (see Fig. 1 / point 4):
– 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.
– Slide the centering aid (tube) over side C of the wrench. Push the screw,
spring, press piece and new seal (in the order shown) on to the wrench and
screw it into the lower part.
The pipette lower part (10) is also available as a complete unit, with seal.
Replacing the filling tube (13)
– Disassemble the pipette lower part.
– After removing the seal, push out the filling tube from below using the wire
punch and push in a new tube from above.
Research – Part B – Maintenance
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