
Fault
LEDs on the
battery
Cause
Remedy
Charging fails to
start after fitting
the battery into
the charger.
1 LED illumina‐
tes red.
The battery is too
warm or too cold.
► Leave the battery inserted in the char‐
ger.
Charging starts automatically as soon as
the permissible temperature range is
reached.
The grass has
not been cut
cleanly or the
lawn is yellow.
The blade is blunt or
worn.
► Sharpen and balance the blade.
The resistance at the
blade is too great.
► Set a higher cutting height.
► Mow shorter grass.
20 Specifications
20.1
STIHL RMA 248.0 Lawn
Mower
–
Permissible battery: STIHL AK
–
Weight without battery: 20.8 kg
–
Maximum grass catcher box capacity: 55 l
–
Cutting width: 46 cm
–
Speed: 3,200 rpm
For information on the battery life see
20.2
Blade
–
Minimum thickness a: 1.6 mm
–
Minimum width b: 55 mm
–
Sharpening angle c: 30°
20.3
STIHL AK 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
20.4
Sound Values and Vibration
Values
The K value for the sound pressure level is
2 dB(A). The K value for the sound power level is
0.6 dB(A). The K value for the vibration value is
0.90 m/s².
–
Sound pressure level L
pA
measured in accord‐
ance with EN 60335-2-77: 83 dB(A)
–
Guaranteed sound power level L
WAd
meas‐
ured in accordance with 2000/14/
EC / S.I. 2001/1701: 96 dB(A)
–
Vibration value a
hv
measured in accordance
with EN 20643, EN 60335-2-77, handlebar:
1.80 m/s²
STIHL recommends wearing hearing protection.
The indicated vibration values were measured in
accordance with a standardised test method and
can be used for the purpose of comparing electri‐
cal appliances. The actual vibration values that
occur may deviate from the indicated values,
depending on the type of application. The indica‐
ted vibration values can be used for an initial
assessment of the vibration load. The actual
vibration load must be assessed. Times during
which the electrical appliance is switched off,
along with times during which it is switched on
but running without load, can also be taken into
consideration.
For information on compliance with Employers'
Vibration Directive 2002/44/EC and
S.I. 2005/1093, see www.stihl.com/vib.
20.5
REACH
REACH is an EC regulation and stands for the
Registration, Evaluation, Authorisation and
Restriction of Chemical substances.
For information on compliance with the REACH
regulation see www.stihl.com/reach.
English
20 Specifications
38
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