It is not obvious when a pipette needs lubrication because the lubricant is inside the pipette and cannot be seen unless the device is disassembled. Pipettes don’t start to squeak. The only noticeable change might be an abrasive feeling or jerking when pushing the operation button which could be a first hint to control the lubricant on the pipette’s piston.
Upon delivery, all pipettes (mechanic and electronic) are lubricated properly by the manufacturer. It is also possible to send the pipettes to a service provider regularly for maintenance. The level of lubrication is then checked automatically. The lubricant used for pipettes is a special mixture and can’t be replaced by common grease used in households. Even centrifuge lubricant has a different composition and should not be used for pipettes. Therefore, when re-lubrication is necessary, special pipette grease must be used. Its properties are optimized for use with pipettes and it sticks to the lubrication point without blending. This special lubricant is also resistant to heat-sterilization in an autoclave, so the pipette doesn’t have to be re-lubricated after this procedure.