Husqvarna AUTOMOWER 550 Operator's Manual page 16

lawnmower. About 15 cm / 6 in. of the lawn along the
ditch/kerbstone will not be mown.
If the working area borders on a paving stone path or
similar that is level with the lawn (+/- 1 cm / 0.4 in.), it is
possible to allow the robotic lawnmower to run a little
over the path. The boundary wire should then be laid 10
cm / 4 in. from the edge of the path. All the grass along
the side of the paving stone path will be cut.
10 cm/4"
When the working area is divided by a paving stone path
that is level with the lawn, it is possible to allow the
robotic lawnmower to run over the path. It can be an
advantage to lay the boundary wire under the paving
stones. The boundary wire can also be laid in the joint
between the paving stones. Ensure that the tiles are in
level with the lawn to avoid excessive wear on the
robotic lawnmower.
CAUTION: The robotic lawnmower must never
run over gravel, mulch or similar material which
can damage the blades.
CAUTION: If the working area is adjacent to
water bodies, slopes, precipices or a public
road, the boundary wire must be supplemented
with an edging or the like. It must then be at
least 15 cm / 6 in. in height. This will prevent the
robotic lawnmower from ending up outside the
working area under any circumstance.
16 - Installation
30 cm / 12"
1-5 cm / 0.4-2"
max 1 cm / 0.4"
3.5.3 Boundaries within the working area
Use the boundary wire to isolate areas inside the
working area by creating islands around obstacles which
cannot withstand a collision, for example flowerbeds,
bushes and fountains. Lay the wire up to and around the
area to be isolated, and then return it back along the
same route. If pegs are used, the wire should be laid
under the same pegs on the return route. When the
boundary wires to and from the island are laid close
together, the robotic lawnmower can drive over the wire.
0 cm / 0"
CAUTION: The boundary wire may not be
crossed on its way to and from an island.
Obstacles that can withstand a collision, for example,
trees or bushes taller than 15 cm / 6 in., do not need to
be isolated with the boundary wire. The robotic
lawnmower will turn around when it collides with this
type of obstacle.
However, to achieve careful and silent operation, it is
recommended to isolate all fixed objects in and around
the working area.
Obstacles that slope slightly, for example stones or large
trees with raised roots, must be isolated or removed.
Otherwise the robotic lawnmower can slide up onto this
kind of obstacle causing the blades to be damaged.
min. 15 cm / 6"
362 - 002 - 06.02.2018