Husqvarna AUTOMOWER 420 Operator's Manual page 19

• Make an eyelet (F) where the guide wire is
to be connected to the boundary wire.
3.4.3.1 To put the boundary wire in a slope
The product can operate in 45% slopes. Slopes
that are too steep must be isolated with the
boundary wire. The gradient (%) is calculated as
height per m. Example: 10 cm / 100 cm = 10%.
10%
100 cm/40"
10 cm/4"
• For slopes steeper than 45% inside the work
area, isolate the slope with boundary wire.
• For slopes steeper than 15% along the outer
edge of the lawn, put the boundary wire 20
cm / 8 in. (A) from the edge.
>10%
A
• For slopes adjacent to a public road, put a
fence or a protective wall along the outer
edge of the slope.
• Make sure that there is as much free area as
possible to the left of the guide wire. The
product moves on the left side of the guide
wire, when you face the charging station.
3.4.3.2 Passages
A passage is a section that has boundary wire on
each side and that connects 2 work areas. The
passage must be a minimum of 60 cm / 24 in.
between the boundary wire.
Note: If a passage is less than 2 m / 6.5 ft. wide,
install a guide wire through the passage.
The product always runs to the left of the guide
wire as seen facing the charging station. Make
1201 - 004 - 25.03.2020
sure that the guide wire has as much free area as
possible to the left of the guide wire.
3.4.3.3 To make an island
0-25%
Some obstacles can withstand a collision, for
example, trees or bushes taller than 15 cm / 6 in.
The product will collide and then turn around with
this type of obstacle. However, obstacles that
slope slightly, for example stones or large trees
Max.
distance
>60 cm / 24"
>30 cm / 12"
>2 m / 6.5 ft
CAUTION: Do not put a section of
boundary wire across the other. The
sections of boundary wire must be
parallel.
CAUTION: Do not put the guide wire
across the boundary wire, for example
a boundary wire that goes to an island.
Installation - 19