Honda HRM4000EC Owner's Manual page 23

Robotic lawnmower
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Installation
Conditions for laying the boundary wire
Height of objects which the
lawnmower might run on top of
Areas which the lawnmower might fall into
20
Image
Maximum
Crossed
5 mm
interval
30 cm to 50 cm
Lay fence with
a height of
15 cm or more
More than
15° (27%)
Less than
15° (27%)
Condition
Lay boundary wire around objects which the
lawnmower might run on top of (e.g. rocks, tree
roots, etc.); these objects must be removed
from the work area.
The boundary wire entry and exit points for a
round area should be separated by less than
5 mm. (However, the boundary wire should not
cross itself.)
There must be 30 cm to 50 cm of space
between the boundary wire and large objects.
(This space can be reduced to as low as 30 cm
if you set [Wire Overlap] to a low value. For
details, consult your dealer.)
Lay fence around areas which the lawnmower
might fall into, such as uneven ground, ponds,
pools, driveways, or other areas with differences
in height.
The work area must conform to the following
conditions if it includes sloping areas.
Laying the boundary wire where the slope is too
steep has a bad effect on the lawnmower. This is
because the lawnmower follows along where the
boundary wire has been laid.
• The lawnmower can operate on slopes of 25°
(47%). Do not include slopes in the work area
that are more than 25° (47%).
• Lay the boundary wire in locations that have a
slope of less than 15° (27%).
• If the location in which you are laying the
boundary wire has a slope that is steeper than
15° (27%), do the following.
- Do not lay the boundary wire laterally
across a slope that is steeper than 15°
(27%).
- Lay the boundary wire laterally across a
relatively flat space, with a slope of less
than 15° (27%), that comes after the
location where the slope is more than 15°
(27%). (Refer to left diagram.)

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