In Case Of Thunderstorms; Blades - Husqvarna 420 Operator's Manual

8.6 In Case of Thunderstorms

To reduce the risk of damage to electrical components
in the robotic lawnmower and its charging station, we
recommend that all connections to the charging station
are disconnected (power supply, boundary wire and guide
wires) if there is a risk of a thunderstorm.
1. Ensure that cables are marked with the included
markers to facilitate reconnection. The charging
station's connections are marked AR, AL, G1, G2,
G3.
2. Disconnect all wires.
3. Close the cover to the charging station to protect
the connections from rain.
4. Connect all the wires if there is no longer a risk of
thunder. It is important that each wire is connected
to the right place.

8.7 Blades

WARNING
Always use original blades and screws
when replacing. Only replacing the
blades and reusing the screw can result
in the screw wearing during mowing and
shearing off. The blades can then be
thrown out and cause serious injury.
There are three blades on the robotic lawnmower, which
are screwed into the blade disc. All three blades and
screws must be replaced at the same time to obtain a
balanced mowing system.
Use Husqvarna approved blades only. Contact your local
dealer for more information.
To replace the blades:
1. Set the main switch to position 0.
2. Wear protective gloves.
3. Turn the robotic lawnmower upside down.
4. Rotate the skid plate so that its holes align with
the screw for the blade.
5. Remove the screw. Use a straight slot or cross-tip
screwdriver.
6. Remove the blade and the screw.
7. Screw on the new blade and the new screw.
Check also that the blades can pivot freely.
English - 78
1157866-26,420,430X,450X,EN_160314.indd 78
MAINTENANCE
1.
Power
Power
G3
AR
G1
G2
X
AL
2.
3012-1124
3012-1060
3012-272
3012-1207
2016-03-14 17:00:03