Specifications - Stihl MM 55 Instruction Manual

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Specifications

Engine
Single cylinder two-stroke engine
Displacement: 27.2 cm
Bore: 34 mm
Stroke: 30 mm
Engine power to 0.75 kW (1 HP)
ISO 8893: at 7,000 rpm
Idle speed: 2,800 rpm
Engine cut-off speed: 8,900 rpm
Max. output shaft
speed (working tool): 200 rpm
Ignition System
Electronic magneto ignition
Spark plug (resistor Bosch WSR 6F,
type): NGK BPMR 7A
Electrode gap: 0.5 mm
Fuel System
All position diaphragm carburetor with
integral fuel pump
Fuel tank capacity: 330 cc (0.33 l)
Weight
Dry, without working tool
7.9 kg
22
Noise and Vibration Data
For further details on compliance with
Vibration Directive 2002/44/EC see
www.stihl.com/vib/
MultiEngine with MultiTool
Version of MultiTools – see "Approved
3
MultiTools".
BF-MM and BK-MM
Noise and vibration data are measured
at idling and nominal operating speed in
a ratio of 1:6.
Sound pressure level L
86 dB(A)
Sound power level L
94 dB(A)
Vibration measurement a
Left handle:
Right handle:
FC-MM
Noise and vibration data are measured
at idling and nominal operating speed in
a ratio of 1:1.
Sound pressure level L
90 dB(A)
Sound power level L
100 dB(A)
Vibration measurement a
ISO 11789
Left handle:
Right handle:
KB-MM, KW-MM, MF-MM and RL-MM
Noise and vibration data are measured
at idling and nominal operating speed in
a ratio of 1:6.
Sound pressure level L
92 dB(A)
Sound power level L
to EN 709
102 dB(A)
peq
Vibration measurement a
ISO 20643
to EN 709
weq
to EN 709
hv,eq KB-MM:
2 KW-MM:
5.5 m/s
2
7.0 m/s Vibration measurement a
EN 13864
MF-MM:
RL-MM:
The K-factor in accordance with
to ISO 11201
peq
Directive 2006/42/EC is 2.5 dB(A) for
the sound pressure level and sound
power level; the K-factor in accordance
to ISO 3744
with Directive 2006/42/EC is 2.0 m/s
weq
for the vibration measurement.
to
hv,eq
2
5.5 m/s
2
7.0 m/s
to ISO 11201
peq
to EN ISO 3744
peq
to
hv,eq
Handle, Handle,
left right
2 2
5.5 m/s 7.0 m/s
2 2
5.5 m/s 7.0 m/s
to
hv,eq
Handle, Handle,
left right
2 2
5.5 m/s 7.0 m/s
2 2
5.5 m/s 7.0 m/s
2
MM 55