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Clean and do servicing on the product before long-
term storage.
Technical data
Technical data
525HF3S
Engine
Cylinder displacement, cm
3
24.5
Cylinder bore, mm 34
Stroke, mm 27
Idle speed, rpm 3000
Recommended max speed, rpm 12000
Maximum engine power acc. to ISO 8893, kW/hp @ rpm 0.9/8500
Catalytic converter muffler Yes
Speed-regulated ignition system Yes
Ignition system
Spark plug NGK BPM8Y
Electrode gap, mm 0.65
Fuel and lubrication system
Fuel tank capacity, l/cm
3
0.5/500
Weight
Without fuel, kg 6.1
Noise emissions
1
Sound power level, measured dB (A) 105
Sound power level, guaranteed L
WA
dB (A) 106
Sound levels
2
Equivalent sound pressure level at the operator’s ear, measured according
to ISO 22868, dB(A)
92
Vibration levels
3
Equivalent vibration levels (a
hv,eq
) at handles, measured according to ISO 22867, m/s
2
:
1
Noise emissions in the environment measured as sound power (L
WA
) in conformity with EC directive
2000/14/EC. Reported sound power level for the product has been measured with the original cutting attach-
ment that gives the highest level. The difference between guaranteed and measured sound power is that the
guaranteed sound power also includes dispersion in the measurement result and the variations between dif-
ferent prodducts of the same model according to Directive 2000/14/EC.
2
Reported data for equivalent sound pressure level has a typical statistical dispersion (standard deviation) of 1
dB (A).
3
Reported data for equivalent vibration level has a typical statistical dispersion (standard deviation) of 1 m/s
2
.
16 1118 - 002 - 23.12.2019
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