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9.8 Level indicator
The upper part of the grass catcher box 
features a level indicator (1).
The flow of air that is created by the rotary 
movement of the mowing blade and is 
responsible for filling the grass catcher box 
raises level indicator (2):
The grass catcher box is filled with 
clippings.
When the grass catcher box is full, this 
flow of air is reduced and level indicator (3) 
drops:
● Empty the filled grass catcher box 
(Ö 12.4).
10.1 General
To ensure a perfect, thick lawn, mow 
regularly and keep the grass short.
Do not cut the lawn too short in hot, dry 
conditions as it will dry out or burn in the 
sun and become unsightly.
The cutting pattern will be better with a 
sharp blade than with a blunt one; the 
blade should therefore be sharpened 
regularly (STIHL specialist dealer).
10.2 Cutting performance
The cutting performance (battery running 
time) depends on the quality of the grass 
and the selected cutting height. The 
cutting performance is enhanced by the 
following measures:
– Mowing the lawn more frequently
– Increasing the cutting height
– Reducing speed of propulsion
– Allowing the lawn to dry before mowing.
If required, additional STIHL lithium ion 
batteries can be purchased (special 
accessories).
Eco mode:
The lawn mower features an 
eco mode, which improves its 
energy efficiency and therefore 
its cutting performance.
Eco mode can be switched on and off 
using the switch in the battery 
compartment. (Ö 9.3)
Function:
The speed of the motor is reduced 
automatically when less power is required. 
If more power is required, the speed is 
increased again within a fraction of a 
second.
10.3 Working area for operator
● For safety reasons, the operator must 
stay within the working area behind the 
handlebar when the motor is running. 
Always observe the safety distance 
provided by the handlebar.
● The lawn mower must only be operated 
by one person. Other persons must 
keep out of the danger area. (Ö 4.)
10. Notes on working with 
the machine