Installation Of Search Loop - Husqvarna Auto Mower Operator's Manual

The Auto Mower can mow areas
with an incline of up to around
15° (27 cm difference in height
per metre). Steeper areas must
be cordoned off with the bound-
ary wire. If the optional weights
are fitted (article number 535 09
11-01, the mower can tackle
inclines slightly steeper than 15°.
You should however avoid laying
the boundary wire on a
downslope. When the grass is
wet the mower may slip if the
slope is too steep, and it might
have problems reversing when it
reaches the wire.
Lay out the boundary wire and secure it to the ground using
staples so that there is no risk of the blades cutting the cable. Allow
the Auto Mower to work for a week and then decide whether any
adjustments to the wire routing are necessary. After a few weeks
the grass will have "weaved in" the cable so that it is not visible.
The boundary cable can also be laid from 2-5 cm (7/8-2") to a
maximum of 20 cm/7 1/2" under the soil.
Metallic objects can interfere with the boundary signal. The
boundary wire should not be routed too close to iron fences or
metal manhole covers. In most cases it is sufficient to lay the
boundary wire 30 cm (12") from these types of object. However, in
some cases, such as electric fences, the distance may need to be
greater. If the Auto Mower regularly stops at a certain point on the
lawn and indicates that there is no signal from the wire (LED 6 is
on), this is probably due to this kind of interference.
If the boundary wire needs to be joined this must be done so that
the joint is waterproof. The best contact is obtained if the joint is
made using Husqvarna's solder-free connector, item number
535 04 43-01. The joint can also be soldered and then insulated
using shrink tube.
NOTE! Twisted cable ends or a single screw terminal
block, insulated with insulation tape are not satisfactory
joints. Ground moisture will cause the conductors to
oxidize and after a period of time this will result in a
broken circuit.
Excluding areas inside the working area
If you wish, you can keep the Auto Mower away from certain
areas within the cutting area, such as flowerbeds, fountains etc.
Route the boundary wire out to the section, around the section
and then back along the same route as the boundary wire was
taken out. The same instructions also apply when the boundary
wire is being taken out to an area that lies outside the first
excluded working area. The wires should be laid adjacent to
each other. If the wires are stapled, they should be placed
under the same staples.
NOTE! It is very important to route the inbound and
outbound boundary wire in the correct direction around
each section, so that the inbound is always on the first
installed side and the outbound is always on the
opposite side.
minimal distance
INSTALLATION
15
45
15
Trees, bushes and the like that can withstand the Auto Mower
pushing against them do not need to be screened off by the
boundary wire. The Auto Mower will reverse anyway when it
hits an obstacle. However, these obstacles must be higher than
the front edge of the chassis, which means about 10 cm (4") or
more. Similarly, obstacles with a gentle slope, for example
stones or large trees with protruding roots, should be either
screened off or removed. Otherwise the Auto Mower can climb
up on such obstacles and probably damage its blades.

Installation of search loop

When it's time to charge the battery, the Auto Mower begins to
look for the search wire. Once the Auto Mower has detected that it
has crossed the search wire, it follows the wire in a clockwise
direction until it reaches the docking side of the charging station.
Searching for the search wire begins when there is enough charge
left in the battery for another hour or two of running time. At some
time during this period the Auto Mower must therefore find the
search wire. If the Auto Mower has plenty of charge left in its
battery, it will ignore the search wire.
The search wire must be laid from the charging station clockwise
around but inside the working area and then back to the charging
station. If the working area consists of several sections that are
joined to each other by long narrow passages, the search wire
must be laid so that it goes into each area. See "Planning installa-
tion" for examples.
The search wire must never go outside the working area or cross
over itself.
Passages and wire separation distance
Lay the search wire as straight as possible. Make sharp corners
wherever the wire needs to turn. Refer to "Installation of boundary
wire" for advice on possible signal interference from the sur-
roundings.
The search wire should be laid so that its wires are at least 70 cm
(28") from each other and from the boundary wire, see the illustra-
tion. In exceptional cases and along short stretches, e.g. to be able
to enter a narrow passage, or for the final 4 feet leading to the
charging station, the wire lengths are allowed to lie closer to each
other. The search wire may even be laid across the two parts of
the boundary wire that approach and return from an "island".
The outgoing search wire from the charging station should lie at an
angle of 45° to the boundary wire, see the illustration. The final 4
feet of the incoming wire must go straight into the charging station,
see the illustration.
NOTE! The search wire loop should form a long and
narrow corridor-like shape. Don't lay the wire lengths
further than 2 m (6 1/2 ft) apart.
100 cm
(40")
70 - 200 cm
(28"-78")
70 cm
45°
(28")
70 cm
(28")
9
English –