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34 – English
TECHNICAL DATA
Note 1: Noise emissions in the environment measured as sound power (L
WA
) in conformity with EC directive 2000/14/EC.
Note 2: Equivalent sound pressure level is calculated as the time-weighted energy total for sound pressure levels under various
working conditions with the following time distribution: 1/2 idling and 1/2 max speed.
NOTE! The noise pressure level at operator’s ear and vibrations on the handles are measured with all the approved cutting
attachments for the machine. The table indicates the lowest and highest values.
Technical data 250R 252RX 265RX
Engine
Cylinder displacement, cm
3
48,7 50,8 65,1
Cylinder bore, mm 44 45 48
Stroke, mm 32 32 36
Idle speed, rpm 2700 2700 2250
Recommended max. speed, rpm 12500 14000 11500
Speed of output shaft, rpm 9190 10300 9120
Max. engine output, acc. to ISO 8893 2,1/9000 2,4/9000 3,0/8400
Catalytic converter muffler No No No
Ignition system
Manufacturer/type of ignition system EM/ET EM/ET SEM GA 6CD
Spark plug
Champion RCJ 7Y Champion RCJ 7Y Champion RCJ 7Y
NGK BPMR 7A NGK BPMR 7A NGK BPMR 7A
Electrode gap, mm 0,5 0,5 0,5
Fuel and lubrication system
Manufacturer/type of carburettor Walbro HDA Walbro HDA Tillotson HS
Fuel tank capacity, litre 0,8 0,8 1,0
Weight
Weight without fuel, cutting attachment and guard, kg 9,2 8,9 10,8
Noise emissions
(see note 1)
Sound power level, measured dB(A) 112 112 115
Sound power level, guaranteed L
WA
dB(A) 114 114 116
Noise levels
(see note 2)
Equivalent noise pressure level at the operator’s ear,
measured according to EN/ISO 11806 and ISO 7917,
dB(A), min./max.:
97/104 96/103 98/100
Vibration levels
Vibration levels at handles, measured according to
EN/ISO 11806 and ISO 7916, m/s
2
At idle, left/right handles, min.: 2,7/3,2 2,8/2,8 4,5/4,0
At idle, left/right handles, max.: 3,5/6,0 4,5/3,9 5,1/4,6
At max. speed, left/right handles, min.: 1,0/1,0 1,2/1,4 3,0/3,9
At max. speed, left/right handles, max.: 2,1/2,0 1,6/1,7 3,9/5,1