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10.4 Correct motor load
Do not switch the lawn mower on in tall
grass. Select a higher cutting height
setting if the motor is difficult to start.
The lawn mower load must never cause
the motor speed to drop significantly.
If the speed drops when mowing tall grass,
select a higher cutting height setting
and/or reduce the speed of propulsion.
10.5 If the mowing blade blocks
Switch off the motor immediately and
disconnect the safety plug. Then eliminate
the cause of the fault.
10.6 Thermal motor overload
protection
The electronics switch off the motor if it
becomes overloaded during operation.
Three red LEDs in the battery illuminate if
a thermal overload occurs. (Ö 8.5)
Causes for an overload:
– blunt mowing blade
– mowing excessively high grass or
cutting height adjusted too low
– excessive rate of feed
– inadequate cleaning of the cooling air
guide (inlet slots)
Recommencing operation
Resume normal operation of the machine
following a cooling period of up to 10 min
(depending on the ambient temperature).
(Ö 12.)
The machine is equipped with several
safety devices for safe operation and for
the prevention of improper use.
11.1 Safety plug
The motor can only be switched on when
the safety plug is inserted (Ö 9.2).
11.2 Safety devices
The lawn mower is equipped with safety
devices, which prevent inadvertent contact
with the mowing blade and with ejected
clippings.
These include the housing, discharge flap,
grass catcher box and correctly installed
handlebar.
11.3 Two-hand operation
The motor can only be switched on by
pressing and holding the ON button with
the right hand and then pulling the
motorstop lever to the handlebar with the
left hand.
11.4 Motor run-down brake
When the motorstop lever is released, the
mowing blade comes to a complete
standstill in less than three seconds.
An integrated motor run-down brake
shortens the run-down time until the blade
stops.
Measuring run-down time
Following motor start-up, the blade rotates
and a wind noise is audible. The run-down
time corresponds to the duration of the
wind noise after the motor stops. This can
be measured using a stopwatch.
12.1 Preparatory measures
● Charge the battery and insert it into the
battery compartment. (Ö 8.4)
● Insert the safety plug. (Ö 9.2)
12.2 Switching the lawn mower on
When eco mode is switched on, the
speed is reduced automatically
when less power is required.
(Ö 10.2)
11. Safety devices
Risk of injury!
If a safety device is found to be
defective, the machine must not be
operated. Consult a specialist
dealer; STIHL recommends STIHL
specialist dealers.
12. Operating the machine
Risk of injury!
Observe the safety instructions in
the section "For your safety". (Ö 4.)
Do not switch the lawn mower on in
tall grass. Select a higher cutting
height setting if the motor is difficult
to start.