Husqvarna Automower 420 Technical Manual page 102

12 X
13 X
14 X
15 X
16 X
17 X
18 X
19 X
20 X
21 X
22 X
English - 102
7. MAINTENANCE AND SERVICE
Check tightening torque
of chassis screws.
Check chassis wire
bushings.
Inspect blades and blade
screws.
Inspect skid plate and
skid plate bearing.
Clean the charging sta-
tion.
Inspect and polish char-
ging plates on mower and
in charging station.
Carry out an Auto test of
all components in Auto-
check EXP.
Check that docking and
charging work correctly.
Check the condition of the
battery by carrying out a
battery test.
Fully charge the battery.
Study the service messa-
ges for any recommended
upgrades.
Refer to 5.2.5 Assembling the chassis,
5.22 Replacing the rear collision columns
and 5.23 Replacing front collision column/
lift sensor for screw locations and
5.30 Screw fasteners for correct
tightening torque.
Check all rubber seals leading into the
chassis.
Make sure the skid plate can rotate freely
and that the ball bearing does not make
a noise.
Polish contact surfaces on both mower
and charging station charging plates with
a fine grade emery cloth.
Refer to 4.3.1 Auto test.
Refer to 3.4.1 Test find the charging station
Refer to 6.6 Battery test
Always charge the battery fully before
winter storage. If this is not done, the
battery may be rendered useless due to
voltage levels dropping too low. Charging
the battery fully before winter storage
means it does not require maintenance
charging during the winter.
Updated service bulletins can be found in
Autocheck under Documentation, refer to
4.3.8 Documentation.