Husqvarna Automower 305 Technical Manual page 70

10 Upside down
Internal diagnostics
18
Collision sensor
problem
4 Loop sensor
problem, front
5 Loop sensor
problem, rear
32 Tilt sensor problem
Englsih - 68
6� TROUBLE SHOOTING
The Automower 305 is
®
leaning too much or has
turned over.
The mower has become
stuck.
The body is not properly
secured in the rubber
dampers.
The collision sensor magnet
in the body is missing or is
turned the wrong way round.
The control box is defective
The cabling to the sensor
card is defective or has
come loose.
The front loop sensor card is
defective.
The control box is defective.
The tilt sensor has
incongruous values
Turn the mower the right way up and
rectify the cause of the mower turning
over.
Turn the mower upside down and
check that the rubber dampers are
properly attached in the body and
in the chassis. See 5.19 Replacing
rear rubber damper on page 61 and
5.20 Replacing front rubber damper
on page 61.
Check that the magnet is pointing in
the right direction. See 5.1.5 Magnets
for sensors on page 48.
Replace the control box. See
5.9 Replacing the control box on
page 55.
Check the levels for A-signal front
and A-signal rear. See Loop (5-1-3)
on page 20.
If A-signal front is 0 and A-signal rear
is higher than 70 (the mower is outside
the charge plate, but inside the loop)
or if the Signal quality is lower than
100%, the cabling to the sensor card is
defective or has come loose.
See above.
Check the levels for A-signal front
and A-signal rear. See Loop (5-1-3)
on page 20.
If A-signal rear is 0 and A-signal
front is higher than 70 (the mower is
outside the charge plate, but inside
the loop) or if the Signal quality is
lower than 100%, the control box is
defective or needs to be replaced.
Calibrate the tilt sensor. See
Calibrate tilt sensor (5-4-2) on
page 23.
Replace the control box. See
5.9 Replacing the control box on
page 55.