Find Breaks In The Loop Wire - Husqvarna AUTOMOWER 440 Operator's Manual

Symptoms Cause
The robotic lawnmow- Damaged blades lead to imbalance in the
er vibrates. cutting system.
Too many blades in the same position lead to
imbalance in the cutting system.
Different versions (thickness) of Husqvarna
blades are used.
The robotic lawnmow- The robotic lawnmower searches for the
er runs, but the blade charging station.
disc does not rotate.
The robotic lawnmow- Grass or other foreign object blocks the blade
er mows for shorter disc.
periods than usual
The battery is spent.
between charges.
Both the mowing and The battery is spent.
charging times are
shorter than usual.
The robotic lawnmow- The hatch has been closed without the
er is parked for hours START button first being pressed.
in the charging sta-
tion.
The robotic lawnmow- Spiral mowing is a natural part of the robotic
er often moves in cir- lawnmower's movement patter.
cles or spirals.
The robotic lawnmow- This is completely normal for Automower
er turns round and 430X and Automower 450X with GPS naviga-
stays on a small area tion and contributes to an even result.
for several minutes.

6.6 Find breaks in the loop wire

Breaks in the loop wire are usually the result of
unintentional physical damage to the wire such as when
gardening with a shovel. In countries with ground frost,
also sharp stones that move in the ground can damage
the wire. Breaks can also be due to the wire being
stretched excessively during installation.
Mowing the grass too low right after the installation can
damage 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.
A defective splicing of the loop wire can also lead to
disruptions several weeks after the splice was done. A
faulty splice can, for example, be the result of the
original coupler not being pressed together hard enough
with a pair of pliers, or that a coupler of lower quality
than the original coupler has been used. Please first
check all known splices before further troubleshooting is
done.
A wire break can be located by gradually halving the
distance of the loop where the break may have occurred
until there is only a very short section of the wire left.
56 - Troubleshooting
Action
Inspect the blades and screws and replace
them if necessary. See
on page 48 .
Check that only one blade is fitted at each
screw.
Check if the blades are of different versions.
No action. The blade disc does not rotate
when the robotic lawnmower is searching for
the charging station.
Remove and clean the blade disc. See
the robotic lawnmower on page 47 .
Replace the battery. See
Replace the battery. See
Open the hatch, press the START button and
then close the hatch.
Adjust how often spiral mowing is carried out.
This function can be deactivated if necessary.
Spiral cutting on page 34 .
See
No action.
The following method does not work if
activated. Make sure first that
ECO mode on page 33 .
See
1. Check that the indicator lamp in the charging station
flashes blue, which indicates a break in the
Indicator lamp in the charging
boundary loop. See
station on page 54 .
2. Check that the boundary wire connections to the
charging station are properly connected and not
damaged. Check that the indicator lamp in the
charging station is still flashing blue.
To replace the blades
Clean
Battery on page 48 .
Battery on page 48 .
ECO mode is
ECO mode is turned off.
447 - 001 -