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10 Installing the Robotic Mower
4. Lifting protection
If you attempt to lift the robotic mower by the hood or at the 
carrying handles during operation, its lift sensor will be 
activated and will stop the mowing blade within a short 
period. Nevertheless, do not attempt to lift or reach under 
the robotic mower for any reason without first activating the 
disabling device and ensuring that the mowing blade has 
stopped.
5. Tilt sensor
If the robotic mower exceeds the permissible incline of more 
than 21.8° (40 %), the robotic mower will turn and continue 
mowing in a different direction. An incline of 21.8° 
corresponds to a vertical height increase of a = 15.7 in. 
(40 cm) for a b = 39.4 in. (100 cm) horizontal distance. 
Exclude such inclines from the mowing area and trim the 
excluded area with a suitable line trimmer or other tool.
In the event of a rollover, the wheel drive stops and the 
mowing blade will stop within a short period.
6. Illuminated display
The display is backlit during operation to help you track the 
robotic mower in darkness.
7. Anti-theft alarm
When the anti-theft feature is activated:
– An alarm sounds when the robotic mower is lifted unless 
the PIN code is entered within one minute, @ 15.4.
– If you replace the docking station or robotic mower after 
completing the initial setup, you will need to link the 
robotic mower and docking station before use, @ 10.6.
8. GPS protection
For theft detection, STIHL recommends activating the GPS 
protection feature. When GPS protection is activated:
– The registered owner of the robotic mower will be notified 
through the iMow App if the unit is carried more than 
1640 ft. (500 m) away from the perimeter of the 
established mowing area, @ 15.4.
– When low, medium or high security levels are set, the 
robotic mower can be operated outside the established 
mowing area only after the security PIN code is entered, 
@ 15.4.
10.1 Preparing the Lawn and the Robotic Mower for 
Operation
To prepare the lawn for installation of the perimeter wire:
► Mow the lawn using a conventional lawn mower. An ideal 
grass height is 2.4 in. (6 cm) or less.
► If the surface is hard and dry, water the mowing area 
lightly in order to make it easier to drive in the perimeter 
wire stakes.
► STIHL recommends that you install the perimeter wire at 
least 11 in. (28 cm) from obstacles or the outer boundary 
of your yard, @ 11. This will make continuous operation 
of your robotic mower more likely. You may reduce 
unmowed areas by installing the perimeter wire closer 
than 11 in. (28 cm) to obstacles, but the successful 
installation will depend on the particular characteristics of 
your yard, @ 11.15.
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10 Installing the Robotic Mower