DKSH LabPRO 2ml User Manual page 16

BIOTIX COBRA PIPETTE
Changing the tip-ejector
To remove
Push the ejection button.

Push laterally (to the left) the

tip-ejector.
Slide and remove the tip-ejector.

To refit
Push the ejection button.

Slide the tip-ejector along the

tip-holder.
Clip and push laterally (to the right) the tip-ejector

on the body of the pipette.
Changing the tip-holder – no tools required
Remove the tip-ejector (see above).

Unscrew the connecting nut by turning it clockwise.

Carefully separate the lower and upper parts.

Remove the piston assembly and the seals.

Clean, sterilize, or replace the tip-holder.

If necessary, lubricate lightly the piston and its seals

(see below).
Reassemble the pipette (refer to the figure 16).

Tighten the connecting nut (turn counterclockwise).

Refit the tip-ejector (see above).

Servicing the piston assembly
You may remove the piston assembly for cleaning pur-
poses only. If the piston assembly is changed, the pi-
pette must be adjusted and calibrated in the Supplier
Service Center. As the models 2µl and 10µl single
channel models contain miniaturized parts, it is best
not to disassemble these pipettes yourself.
Remove the tip-ejector (see above).

Unscrew the connecting nut by turning it clockwise.

Carefully separate the lower and upper parts.

Remove the piston assembly, O-ring and seal.

16
FIGURE 15

