Eureka NER650 Owner's Manual page 17

Drive wheel, side brushes, sensor and charging contact point cleaning
Drive wheel cleaning (weekly cleaning recommended)
1. Turn back and forth the wheel to remove debris. By using a cleaning
tool or soft cloth, clean the wheel and remove hair or debris.
Side brushes cleaning (weekly cleaning recommended)
1. Remove the side brushes;
Sensor and charging contact point cleaning (weekly cleaning recommended)
2. Clean dust accumulating on
the side brush.
Use soft cloth to
slightly wipe the
sensors and
remove dust
from its surface
Use soft cloth to slightly
wipe charger contact
points to ensure
normal charging
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