Husqvarna AUTOMOWER 220 AC Operator's Manual page 26

3. INSTALLATION
The boundary wire should not be laid across a slope
that is steeper than 10 %. There is a risk of
Automower finding it difficult to turn there. The mower
will then stop and show the fault message Outside
working area. The risk is at its greatest in damp
weather conditions, as the wheels can slip on the wet
grass.
However, the boundary wire can be laid across a
slope steeper than 10 % when there is an obstacle
that Automower can be permitted to collide with, for
3012-673
example, a fence or a dense hedge.
Automower can mow areas inside
the working area that slope up to
35 cm per distance metre (35 %).
Areas that slope more must be
demarcated by the boundary wire.
When any part of the working area's
boundary slopes more than 10 cm
per distance metre (10 %), the
boundary wire must be routed about
35 cm in on flat ground before the
slope starts.
3012-674
Laying out the boundary wire
Run the boundary wire around the working area, but
wait before connecting the wire to the charging
station.
3012-221
English - 27