20 Specifications
Fault
LEDs on the
battery
The brushcutter
3 LEDs light
cuts out during
up red.
operation.
The runtime of
the brushcutter is
too short.
20 Specifications
20.1
STIHL FSA 90, FSA 90 R Trim‐
mers
FSA 90
Approved batteries:
• STIHL AP
• STIHL AR
– Weight without battery, cutting attachment and
deflector: 3.2 kg
– Length without cutting attachment: 1774 mm
FSA 90 R
Approved batteries:
• STIHL AP
• STIHL AR
– Weight without battery, cutting attachment and
deflector: 2.8 kg
– Length without cutting attachment: 1774 mm
For battery life see www.stihl.com/battery-life.
20.2
STIHL AP battery
– Battery Technology: Lithium-ion
– Voltage: 36 V
– Capacity in Ah: see rating label
– Energy content in Wh: see rating label
– Weight in kg: see rating label
– Permissible temperature range for operation
and storage: -10°C to +50°C
20.3
Noise and Vibration Data
K-value (uncertainty) for sound pressure level is
2 dB(A). K-value (uncertainty) for sound power
level is 2 dB(A). K-value (uncertainty) for vibra‐
tion level is 2 m/s².
FSA 90
STIHL recommends that you wear hearing pro‐
tection.
0458-709-9921-C
Cause
Trimmer is too hot.
There is an electrical
fault.
The battery is not fully
charged.
The battery life has
been exceeded.
Using with a mowing head:
– Sound pressure level L
to EN 50636-2-91: 83 dB(A)
– Sound power level L
EN 50636-2-91: 92 dB(A)
– Vibration level a
EN 50636-2-91
– Control handle: 3.5 m/s².
– Left handle: 3.5 m/s²
Using with a metal cutting attachment:
– Sound pressure level L
to EN 50636-2-91: 73 dB(A)
– Sound power level L
EN 50636-2-91: 84 dB(A)
– Vibration level a
EN 50636-2-91
– Control handle: 1.0 m/s².
– Left handle: 1.0 m/s²
FSA 90 R
STIHL recommends that you wear hearing pro‐
tection.
Using with a mowing head:
– Sound pressure level L
to EN 50636-2-91: 83 dB(A)
– Sound power level L
EN 50636-2-91: 92 dB(A)
– Vibration level a
EN 50636-2-91
– Control handle: 3.5 m/s².
– Left handle: 4.8 m/s²
Using with a metal cutting attachment:
– Sound pressure level L
to EN 50636-2-91: 73 dB(A)
– Sound power level L
EN 50636-2-91: 84 dB(A)
– Vibration level a
EN 50636-2-91
– Control handle: 1.4 m/s².
– Left handle: 1.4 m/s²
Remedy
► Remove the battery.
► Allow trimmer to cool down.
► Remove battery and reinsert it.
► Switch on the brushcutter.
► Recharge the battery fully as described in
the User Manual for the STIHL AL 101,
300, 500 chargers.
► Replace battery.
pA
measured according to
wA
measured according to
hv
pA
measured according to
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measured according to
hv
pA
measured according to
wA
measured according to
hv
pA
measured according to
wA
measured according to
hv
English
measured according
measured according
measured according
measured according
43