Eppendorf Research plus - Manual (Page 19)

5 Maintenance
19
Eppendorf Research® plus — Operating manual
5.4.2 5 mL and 10 mL single-channel
Replace the protection filter in the tip cone after each contact with liquid or if it is frayed.
1. : unscrew the ejector sleeve.
2. : keep the ejector pressed and turn the lower part to the left or right by approximately 30°.
The lower part is automatically released from the upper part.
3. : open the lower part: fit the pipette key (included in the delivery package) onto the lower
part. Hold the cylinder and unscrew it from the lower part.
See the next figure.
4. Hold the piston (4) which is now partly visible in the lower part.
5. Push the piston mount (1) slightly downwards (3 mm) and turn it by 45°.
The piston spring pushes the piston mount upwards. The lower part opens.
The lower part consists of the following:
1 5 mL / 10 mL piston mount 2 Piston spring
3 Upper part of the lower part 4 Piston (with seal)
5 Cylinder and tip cone 6 Protection filter in the tip cone
1 2 3
4
30°
1
2
1
2
3 4
1 2 3 4 5 6
5
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