English
18.2
Sharpening and Balancing the
Blade
Sharpening and balancing the blade correctly
requires a lot of practice.
STIHL recommends having the blade sharpened
and balanced by a STIHL specialist dealer.
The current addresses of the specialist dealers
can be found under the respective STIHL country
representative at www.stihl.com .
WARNING
■ The cutting edges of the blade are sharp. This
may result in the user cutting themselves.
► Wear protective gloves.
► Switch off the lawnmower and remove the bat‐
teries.
► Upend the lawn mower.
► Remove the blade.
► Sharpen the blade. Observe the sharpening
angle and cool the blade,
20 Troubleshooting
20.1
Remedying Lawn Mower or Battery Faults
Fault
LEDs on the
battery
The lawn mower
1 LED flashes
does not start
green.
when switched
on.
1 LED illumi‐
nates red.
3 LEDs flash
red.
3 LEDs illumi‐
nate red.
4 LEDs flash
red.
18
21.2.
Cause
The battery charge
state is too low.
The battery is too
warm or too cold.
There is a fault in the
lawn mower.
The lawn mower is
too warm.
There is a fault in the
battery.
The electrical connec‐
tion between the lawn
mower and battery
has been interrupted.
The lawn mower or
battery is damp.
Bluing of the blade during sharpening is not
permitted.
► Attach the blade.
► If anything is unclear: consult a STIHL special‐
ist dealer.
19 Repairing
19.1
Repairing the Mower and Bat‐
tery
The mower, blade and battery cannot be
repaired by the user.
► If the mower or the blade is damaged: Do not
use your mower and contact your STIHL serv‐
icing dealer for assistance.
► If the battery has a malfunction or is damaged:
Replace the battery.
► If safety labels are illegible or damaged: Have
the labels replaced by a STIHL servicing
dealer.
Remedy
► Fully charge the battery as described in
the STIHL charger operating instruc‐
tions.
► Remove the battery.
► Allow the battery to cool down or warm
up.
► Remove the battery.
► Clean the electrical contacts in both bat‐
tery compartments.
► Fit the battery.
► Switch the lawn mower on.
► If 3 LEDs still flash red: do not use the
lawn mower and consult a STIHL spe‐
cialist dealer.
► Remove the battery.
► Allow the lawn mower to cool down.
► Remove the battery and fit it again.
► Switch the lawn mower on.
► If 4 LEDs still flash red: do not use the
battery and consult a STIHL specialist
dealer.
► Remove the battery.
► Clean the electrical contacts in both bat‐
tery compartments.
► Fit the battery.
► Remove the battery.
► Clean the lawn mower.
19 Repairing
0478-131-9979-A