VWR High Performance Pipettor 10mL

Unscrew the connecting nut by turning it clockwise

Carefully separate the lower and upper parts

Remove the following components

Clean the piston with isopropanol or ethanol

Select the model for specific lubrication instructions

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

Ensure the pipettor is a single channel model

Ensure no liquid has entered the upper part (handle) of the pipettor

Wipe the tip-ejector with a soft cloth or lint-free tissue impregnated with soap solution

Wipe the entire pipettor with a soft cloth or lint-free tissue impregnated with soap solution

Use a brush with soft plastic bristles if the pipettor is very dirty

Place pipettors in the autoclave without a bag to improve drying

Set autoclave temperature to 121°C (252°F)

Set autoclave pressure to 1 atm

Set autoclave time to 20 minutes

Is the connecting nut fully tightened?

Tighten the connecting nut if it is not fully tightened

Disassemble the pipettor as described in chapter 12A - Maintenance.

Set aside the upper part in a clean, dry place.

Identify components that can be immersed in cleaning solution

Clean components using an ultrasonic bath (20 minutes at 50°C) or with a soft-cloth and brushes.

Degrease piston assembly and seals with isopropanol or ethanol before ultrasonic bath.

Use small round brushes with soft plastic bristles to clean the interior of the tip-holder.