8. When cleaning pipettes, do not use a pump to transfer the cleaning solution. Instead, disassemble the inner components, reassemble them after pipetting is completed, to prevent foreign matter from getting into the pump. 9. In case of power outage or interruption of the heat medium circulation for more than 30 minutes, disassemble the pump for cleaning and reassemble it to prevent damage to the high-temperature pump due to poor bearing lubrication caused by solidification or cracking of the melt.