Husqvarna AUTOMOWER 440 Operator's Manual page 18

3.5.4 Laying the boundary wire
If you intend to staple down the boundary wire:
• Cut the grass very low with a standard lawnmower
or a trimmer where the wire is to be laid. It will then
be easier to lay the wire close to the ground and the
risk of the robotic lawnmower cutting the wire or
damaging the insulation of the wire is reduced.
• Make sure to lay the boundary wire close to the
ground and secure the pegs close together. The
cable must lie close to the ground so as not to be cut
before the grass roots have grown over it. Mowing
the grass too low right after the installation can
damage the wire insulation. Damage to the
insulation may not cause disruptions until several
weeks or months later. To avoid this, always select
the maximum cutting height the first weeks after
installation and then lower the height one step at a
time every second week until the desired cutting
height has been reached.
• Use a hammer to knock the pegs into the ground.
Exercise care when knocking the pegs and make
sure the wire is not under strain. Avoid sharp bends.
If the boundary wire is to be buried:
• Make sure to lay the boundary wire at a minimum of
1 cm / 0.4 in. and a maximum of 20 cm / 8 in. in the
ground. The wire can be buried for instance using an
edge cutter or a straight spade.
Note: Extra wire must not be placed in coils outside the
boundary wire. This can disrupt the robotic lawnmower.
3.5.4.1 Eyelet for connecting the guide wire
To facilitate the connection of the guide wire to the
boundary wire, it is recommended to create an eyelet
with about 20 cm / 8 in. of extra boundary wire at the
point where the guide wire will later be connected. It is a
good idea to plan where the guide wire will be placed
before laying out the boundary wire. See
boundary wire on page 18 .
18 - Installation
3.5.4.2 Laying the boundary wire in towards the
charging station
On its way toward the charging station, the boundary
wire can be laid completely outside the charging station
(see option 1 in the figure). If there is a need to partly
locate the charging station outside the working area, it is
also possible to lay the wire under the charging station
plate (see option 2 in the figure).
However most of the charging station must not be
placed outside the working area as the robotic
lawnmower can then find it difficult to find the charging
station (see figure).
3.5.4.3 Splicing the boundary wire
Laying the
Use an original coupler if the boundary wire is not long
enough and needs to be spliced. It is waterproof and
gives a reliable electrical connection.
Insert both wire ends in the coupler. Check that the
wires are fully inserted into the coupler so that the ends
are visible through the transparent area on the other
side of the coupler. Now press down the button on top of
the coupler fully. Use a polygrip to completely press
down the button on the coupler.
1.
2.
CAUTION: Twinned cables, or a screw terminal
block that is insulated with insulation tape are
not satisfactory splices. Soil moisture will cause
the wire to oxidise and after a time result in a
broken circuit.
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