20 Specifications
20.1
Engine
Single-cylinder two-stroke engine
Displacement:
27.2cm
3
Cylinder bore:
34 mm
Piston stroke:
30 mm
Idle speed:
2500 rpm
Engine power to ISO 7293: 0.8 kW (1.1 bhp)
20.2
Ignition system
Electronic magneto ignition
Spark plug (suppressed): NGK CMR 6 H,
BOSCH USR 4AC
Electrode gap:
0.5 mm
20.3
Fuel system
All-position diaphragm carburetor with integral
fuel pump
Fuel tank capacity:
1050 cm
3
(1.05 l)
20.4
Blowing performance
Blowing force:
12 N
Air velocity
56 m/s
Air throughput:
680 m
3
/h
Maximum air speed**
67 m/s
Maximum air flow rate without
blower tube:
800 m
3
/h
20.5
Weight
Without fuel:
5.8 kg
20.6
Noise and Vibration Data
Noise and vibration data are measured at idling
and maximum rated speed in a ratio of 1:6.
For further details on compliance with Vibration
Directive 2002/44/EC see www.stihl.com/vib/
20.7
Sound pressure level L
peq
to
DIN EN 15503:2010
96 dB(A)
20.8
Sound power level L
weq
to
DIN EN 15503:2010
103 dB(A)
20.9
Vibration measurement a
hv,eq
to
DIN EN 15503:2010
Handle:
3.0 m/s
2
The K‑factor in accordance with Directive
2006/42/EC is 2.0 dB(A) for the sound pressure
level and sound power level; the K‑factor in
accordance with Directive 2006/42/EC is
2.0 m/s
2
for the vibration level.
20.10 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 (EC) No. 1907/2006 see
www.stihl.com/reach.
20.11 Exhaust Emissions
The CO
2
value measured in the EU type approval
procedure is specified at www.stihl.com/co2.
The measured CO
2
value was determined on a
representative engine in accordance with a
standardized test procedure under laboratory
conditions and does not represent either an
explicit or implied guarantee of the performance
of a specific engine.
The applicable exhaust emission requirements
are fulfilled by the intended usage and mainte‐
nance described in this instruction manual. The
type approval expires if the engine is modified in
any way.
21 Maintenance and Repairs
Users of this machine may only carry out the
maintenance and service work described in this
user manual. All other repairs must be carried
out by a servicing dealer.
STIHL recommends that you have servicing and
repair work carried out exclusively by an author‐
ized STIHL servicing dealer. STIHL dealers are
regularly given the opportunity to attend training
courses and are supplied with the necessary
technical information.
When repairing the machine, only use replace‐
ment parts which have been approved by STIHL
for this power tool or are technically identical.
Only use high-quality replacement parts in order
to avoid the risk of accidents and damage to the
machine.
STIHL recommends the use of original STIHL
replacement parts.
Original STIHL parts can be identified by the
STIHL part number, the
{
logo and the
STIHL parts symbol
K
(the symbol may appear
alone on small parts).
English
20 Specifications
16
0458-455-0121-D