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11 Installing the Perimeter Wire
When installing the perimeter wire:
► Use only perimeter wire and wire stakes authorized by
STIHL.
► Install the perimeter wire in a continuous loop around the
entire mowing area with a maximum length of 1640 ft.
(500 m).
► If you install the perimeter wire around areas smaller than
120 square yards (100 m²), or if the total length of the
perimeter wire is less than 575 ft. (175 m), the STIHL
Small Area Module AKM 100 (special accessory) must
also be installed,
10.4. For more information, contact
your authorized STIHL iMow servicing dealer.
► Maintain the specified wire clearances specified below.
Measure the clearances using the iMow Ruler,
– Patios and paths with a maximum height difference
between lawn area of +/- 0.4 in. (1 cm): 0 in. (0 cm)
– Corridors: 9 in. (22 cm)
– High obstacles (e.g. walls, fences, trees): 11 in. (28 cm)
– Narrow passages: 17.3 in. (44 cm)
– Swimming pools, ponds and falling edges: 3.3 ft. (1 m)
► Avoid creating angles less than 90°. These will be difficult
for the robotic mower to navigate, and could result in
unmowed areas.
► Mowing areas must not overlap. Keep a minimum
distance of a ≥ 3.3 ft. (1 m) between the perimeter wires
of the two mowing areas of neighbor A and neighbor B.
► Install reserve lengths of perimeter wire at regular
intervals near difficult passages. Doing so make it easier
to modify the installation of the perimeter wire or docking
station if that should become necessary.
► If burying the perimeter wire, place it at a depth of no more
than 3.9 in. (10 cm).
Burying the perimeter wire in the ground may influence
signal reception, particularly if flagstones or paving stones
are laid over the perimeter wire. The robotic mower may
then travel along at a greater offset to the perimeter wire,
requiring more space in corridors, confined areas and when
traveling along edges. Adjust the location and depth of the
perimeter wire if necessary.
NOTICE
Avoid contacting the perimeter wire when de-thatching or
aerating the lawn. Also use caution when operating a line
trimmer near the perimeter wire. De-thatching, aerating and
trimming operations can result in a cut or damaged
perimeter wire. Refer to your sketch of the mowing area and
take special care to avoid the perimeter wire when
performing these operations.
11.2 Making a Sketch of the Mowing Area
STIHL recommends making a sketch of the mowing area
that includes the following:
– The contour of the mowing area including important
obstacles, borders and any restricted areas which the
robotic mower must not mow,
– The location and position of the docking station,
– The location of the perimeter wire and any wire
connectors you have installed,
– If you change the dimensions of your mowing area after
the initial setup (by adding sections or moving the
perimeter wire, for example), re-link the iMow to the
docking station (
10.6) and run the test edge function
15.3) to measure the length of the perimeter wire and
develop a new mowing plan.
A
B
