Husqvarna Automower 420 Workshop Manual page 13

3. Increase the power to 100% and check that the
speed in each wheel is at least 50 cm/s / 20
in./s.
4. Block each wheel and check that the gearboxes
of the motors are not slipping. When blocking,
the speed should be 0 cm/s. Also listen for
abnormal sounds from the gearbox.
5. Decrease (Arrow down button) the power to 0%.
6. Push the Back button to exit the test.
Note: If a wheel motor fails to start and is difficult to
rotate by hand, the fault is most likely in the main
circuit board or in the wheel motor.
Note: If the wheel motor needs help by hand to start,
and the wheel motor stops when the wheel is
blocked, the fault is in the main circuit board and not
in the wheel motor.
• Cutting motor :
WARNING: The blade rotates during the
blade motor test. Keep your hands and feet
at a safe distance.
1. Push the OK button to start the blade motor test.
2. Check the displayed values of
Current .The speed is normally 2500 rpm. The
current is normally 350 mA +/- 100 mA.
3. Push the Back button to exit the test.
Cutting height motor :
•
1. Push the OK button to start the cutting height
motor test. The cutting disc will move up and
down.
2. Push the Back button to exit the test.
4.4.4.2 Tools - Test - User interface
Tools - Test - User interface menu shows:
The
Keypad :
•
1. Push the OK button to start the keypad test.
2. Push a button. The display shows the button that
is pushed.
3. Push the Back button to exit the test.
Display :
•
1. Push the OK button to start the display test. The
display flashes.
2. Push the Back button to exit the test.
• Sound :
1. Push the OK button to start the sound test. The
buzzer emits a short sound signal at the same
time as a note is shown in the display.
2. Push the Back button to exit the test.
4.4.4.3 Tools - Test - Charging station
This function is used to check if there is a signal for A, F,
N and the guide wires.
1. Place the product in the charging station.
1191 - 001 -
2. Push the OK button to start the test.
4.4.4.4 Tools - Test - GPS navigation (not for 420/440)
The
•
•
•
•
4.4.4.5 Tools - Test - Ultrasonic
1. Select the sensors
Speed and
2. Put an obstacle in front of the product and check
4.4.5 Tools - Special settings
Note: The
are only available for service personnel.
The
•
•
•
•
Note: The product and the charging station must be
paired.
Tools - Test - GPS navigation menu shows:
Activated (Yes/No) : GPS navigation can be
Installation - Lawn coverage - GPS
activated via
supported navigation .
Installed (Yes/No) : If NO is shown, make sure that
the GPS module (430X) or the Automower Connect
module (450X) is correctly installed and that the
products firmware has been updated.
Signal quality : Signal quality shows the strength of
the GPS signal reception. To get a satisfactory
function, signal quality should be
Map (BUILDING/COMPLETE) : BUILDING is
displayed the first time the product is used or after
the GPS map has been reset. Once the map is
COMPLETED will be displayed, which
completed,
takes 2 to 5 days.
left-right , left , right or OFF to see
the same information as in
about the selected option. Refer to
Ultrasonic on page 11 .
that the distance is the same as the distance on the
display.
Tools - Special settings contains settings that
Tools - Special settings menu shows:
Override loop detection : The setting temporary
turns off the products loop detection and the product
operates without charging station and boundary
loop. The function is automatically reset when the
product is switched off.
Demo : The setting is used for installations in shops
or exhibitions. The product alternates between short
periods of operation, docking and charging. The
function is automatically reset when product is
switched off.
Installation lock : If the installation settings lock is
activated, it is not possible to change any settings in
Installation menu.
the
Note: The installation settings lock must be
deactivated to change any of the installation settings
in the main menu.
Override ultrasonic : This function makes it possible
to turn off the ultrasound. When ultrasonic has been
turned off from this menu, the product will
continuously operate at full speed, 65 cm/s / 25 in./s.
Special menus 420/430X/430XH/440/450X/
Good .
Tools - Info - Ultrasonics
Tools - Info -
450XH - 13