English
WARNING
■ An improperly sharpened metal cutting attach‐
ment can increase the risk of kickout (blade
thrust) and other reactive forces, resulting in
severe personal injury or death. STIHL recom‐
mends having your metal cutting attachment
sharpened and balanced by an authorized
STIHL servicing dealer to reduce the risk of
severe or fatal injury.
To sharpen the metal cutting attachment:
► Use a flat file to sharpen dull cutting attach‐
ments. In case of more serious wear or nicks,
25 Troubleshooting Guide
25.1
Trimmer / Brushcutter and Battery
Always remove the battery before carrying out any inspection, cleaning or maintenance.
Condition
LEDs on
Battery
Trimmer / Brush‐
cutter does not
start when
switched on.
1 LED
flashes
green.
STIHL AR
Series: four
long beeps
are emitted
(AR L - six
beeps).
1 LED glows
red.
4 LEDs flash
red.
STIHL
AR Series:
Additionally,
a rapid suc‐
cession of
short beeps
is emitted.
3 LEDs glow
red.
3 LEDs flash
red.
38
► Sharpen frequently and take away as little
► Resharpen the cutting edges uniformly. Take
► See cutting attachment packaging for addi‐
To balance the metal cutting attachment:
► After resharpening about 5 times, check the
Cause
Remedy
No electrical
► Remove the battery,
contact between
► Visually check the electrical contacts in the bat‐
trimmer / brush‐
tery compartment and on the battery.
cutter and bat‐
► Reinsert the battery,
tery.
Battery has low
► Charge the battery,
charge.
Battery too hot /
► Allow the battery to warm up or cool down grad‐
too cold.
ually at ambient temperatures of about 50 °F to
68 °F (10 °C to 20 °C).
Malfunction in
► Remove the battery and reinsert it,
battery.
► Switch on the trimmer / brushcutter,
► If the LEDs continue to flash, do not attempt to
use.
The battery has a malfunction and must be
replaced.
Trimmer / Brush‐
► Allow the trimmer / brushcutter to cool down.
cutter too hot.
Malfunction in
► Remove the battery and reinsert it,
trimmer / brush‐
► Switch on the trimmer / brushcutter,
cutter.
► If the LEDs still flash, do not attempt to use.
The trimmer / brushcutter has a malfunction and
must be checked by a servicing dealer.
25 Troubleshooting Guide
resharpen with a grinder or have it sharpened
by an authorized STIHL servicing dealer.
metal as necessary to create a sharp edge.
Two or three strokes of the file are usually
enough.
care not to alter the contour of the blade body.
tional sharpening instructions. Keep the pack‐
aging for future reference.
cutting tool for out-of-balance on a STIHL bal‐
ancer (special accessory) or have it checked
and rebalanced by an authorized STIHL serv‐
icing dealer as necessary.
16.2.
16.1.
10.2.
16.
17.1.
16
17.1.
0458-041-8201-A