iRobot 551 Vacuum Cleaner User Manual


 
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Cleaning System
Roomba features a patented three-stage cleaning system.
Floor Surfaces
Roomba works on wood, carpet, tile, vinyl, and linoleum, and adjusts
automatically to different floor types.
Roomba automatically senses stairs and other cliffs. Roomba might
stall when confronting rounded edges and might slide over particularly
slippery surfaces. Extremely dark-colored floors may contribute to
Roomba’s cliff sensors working less effectively.
Anti-Tangle system
Roomba won’t get stuck on cords, carpet fringe or tassels. When Roomba
senses it has picked up a cord or tassel, it will automatically stop its main
brushes or side brush and try to escape. Roomba may make a clicking
noise when anti-tangle is activated.
1
Side brush
sweeps along
edge of walls and
into corners.
2
Two counter-
rotating brushes
scoop up dirt,
hair, and debris
into the bin.
3
Powerful vacuum picks up the
remaining fine particles, dirt, and
hair. The filter traps dust and
small particles.
Filter