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6.2.1 Symptoms during mowing
Table 5: Symptoms during mowing
Symptom
Cause
Action
Uneven mowing results
The robotic lawnmower works
too few hours per day.
Increase the working hours.
Working area too large.
Try to limit the working area or extend the
working time.
Blunt blades.
Replace all the blades and screws so that the
rotating parts are balanced.
Long grass in relation to the
set cutting height.
Increase the cutting height and then gradually
lower it.
Incorrect lawn coverage
settings.
Check the lawn coverage settings and optimise
them for the installation. See the Operator’s
Manual.
Does not follow the guide wire
to the areas specified.
Check the guide signal. See
6.4 Troubleshooting
the loop signal on page 90
, as well as the
settings for following the guide wire.
Accumulation of grass by the
blade disc or around the motor
shaft.
Check that the blade disc rotates freely and
easily. If not, the blade disc may need to
be removed and grass and foreign objects
removed.
The robotic lawnmower
runs at the wrong time
The robotic lawnmower clock
needs to be set.
Set the clock. See the Operator’s Manual.
The start and stop times for
mowing are incorrect.
Adjust the start and stop time setting for
mowing. See the Operator’s Manual.
The robotic lawnmower
vibrates
Damaged blade on blade disc
Inspect the blades and screws and replace
them if necessary.
Wrong number of blades
on the blade disc creates
an imbalance.
Make sure there are no blades missing or that
more than one blade is mounted on the same
screw.
The mower mows for
shorter periods than
usual between charges
Grass or a foreign object is
blocking the blade disc or
wheels. The cause may also
be impaired battery capacity.
Remove and clean the blade disc. Perform a
battery test to determine the battery’s capacity.
See
6.6 Battery test on page 94
.
Both the mowing and
charging times are
shorter than usual
Impaired battery capacity.
Perform a battery test to determine the
battery’s capacity. See
6.6 Battery test on
page 94
.
The robotic lawnmower
travels in a small circle
or one wheel locks up
when turning instead
of rotating backwards.
The wheel motor’s gearbox
is slipping.
Check the wheel motors’ function when idling
via the
Tools
menu or use Autocheck EXP.
The battery voltage should be more than 18 V
in this test. Check that both wheel motors start
with 50% power. Then increase the power
to 100%. At 100% the speed of each wheel
should be at least 35 cm/second. Check
that the motors’ gearboxes are not slipping
by blocking each wheel. In connection with
blocking the speed should be 0 cm/second.
Replace the wheel motor if there is a fault.
6. TROUBLESHOOTING
Summary of Contents for Automower 320
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