ECOVACS ROBOTICS DEEBOT N78D Manuel D'instructions page 24

4. Maintenance
4.4 Other Components
Use the Multi-Function Cleaning Tool to cut
off and remove any hair tangled around the
Universal Wheel.
Wipe the robot's Charging Contacts and Charging Docks Pins with the brush of the Multi-Function
Cleaning Tool or with a dry cloth to maintain their effectiveness.
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EN
Wipe the Anti-Drop Sensors with the brush or
felt side of the Multi-Function Cleaning Tool
to maintain their effectiveness.