Philips SmartPro Active User Manual page 21

Cleaning and maintenance
Cleaning the robot
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4 When the robot comes too close to the invisible wall, the light on the
invisible wall starts flashing and the invisible wall emits a beam of
infrared light. This beam of infrared light makes the robot change its
course and move away from the invisible wall.
Note: If you use the invisible wall, regularly check if the batteries still contain
sufficient power. You can check this by switching the virtual wall off and on
again. If there is enough energy in the batteries, the LED on the invisible wall
will light up briefly.
To maintain good cleaning performance, you have to clean the drop-off
sensors, the wheels, the side brushes and the suction opening from time to
time.
1 Make sure that the power switch is in 'off' position.
2 Place the robot upside down on a flat surface
3 Use a brush with soft bristles (e.g. a toothbrush) to remove dust or fluff
from the drop-off sensors and to clean the suction opening.
Note: It is important that you clean the drop-off sensors regularly. If the
drop-off sensors are dirty, the robot may fail to detect height differences
or staircases.
4 Use a brush with soft bristles (e.g. a toothbrush) to remove dust or fluff
from the front wheel and side wheels.
5 To clean the side brushes, grab them by the bristles and pull them off
their shafts.
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