English
Fault
LEDs on the
battery
Charging fails to
1 LED illumina‐
start after fitting
tes red.
the battery into
the charger.
The grass has
not been cut
cleanly or the
lawn is yellow.
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
www.stihl.com/battery-life.
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
38
Cause
The battery is too
warm or too cold.
The blade is blunt or
worn.
The resistance at the
blade is too great.
20.4
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 values is
0.90 m/s².
– Sound pressure level L
ance with EN 60335-2-77: 83 dB(A)
– Sound power level L
ance with 2000/14/EC: 95.8 dB(A)
– Vibration value a
with EN 60335-2-77, handlebar: 1.80 m/s²
STIHL recommends wearing hearing protection.
The indicated vibration values have been meas‐
ured in accordance with a standardised test
method and can be used for the purpose of com‐
paring electrical appliances. The actual vibration
values that occur may deviate from the indicated
values, depending on the type of application.
The indicated 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 in which it is switched on but
running without load, can also be taken into con‐
sideration.
For information on compliance with Employers'
Vibration Directive 2002/44/EC see
www.stihl.com/vib.
20.5
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.
Remedy
► Leave the battery inserted in the char‐
ger.
Charging starts automatically as soon as
the permissible temperature range is
reached.
► Sharpen and balance the blade.
► Set a higher cutting height.
► Mow shorter grass.
Sound Values and Vibration
Values
pA
measured in accord‐
wA
measured in accordance
hv
REACH
20 Specifications
measured in accord‐
0478-131-9861-B