31 – EnglishTECHNICAL DATA1153136-26 Rev.1 2009-12-29Technical dataNote 1: Noise emissions in the environment measured as sound power (LWA) in conformity with EC directive 2000/14/EC.Note 2: Equivalent sound pressure level, according to ISO 22868, is calculated as the time-weighted energy total fordifferent sound pressure levels under various working conditions. Typical statistical dispersion for equivalent soundpressure level is a standard deviation of 1 dB (A).Note 3: Equivalent vibration level, according to ISO 22867, is calculated as the time-weighted energy total for vibrationlevels under various working conditions. Reported data for equivalent vibration level has a typical statistical dispersion(standard deviation) of 1 m/s2.445 445e 450eEngineCylinder displacement, cm3 45,7 45,7 50,2Cylinder bore, mm 42 42 44Stroke, mm 33 33 33Idle speed, rpm 2700 2700 2700Power, kW/ rpm 2,1/9000 2,1/9000 2,4/9000Ignition systemSpark plug NGK BPMR 7A/Champion RCJ 7Y/Husqvarna PR 17YNGK BPMR 7A/Champion RCJ 7Y/Husqvarna PR 17YNGK BPMR 7A/Champion RCJ 7Y/Husqvarna PR 17YElectrode gap, mm 0,5 0,5 0,5Fuel and lubrication systemFuel tank capacity, litre 0,45 0,45 0,45Oil pump capacity at 9,000 rpm, ml/min 13 13 13Oil tank capacity, litre 0,26 0,26 0,26Type of oil pump Not adjustable Not adjustable Not adjustableWeightChain saw without bar or chain, empty tanks, kg 4,9 5,1 5,1Noise emissions(see note 1)Sound power level, measured dB(A) 112 112 113Sound power level, guaranteed LWA dB(A) 114 114 115Sound levels(see note 2)Equivalent sound pressure level at the operator’sear, dB(A) 103 103 104Vibration levels(see note 3)Front handle, m/s2 1,9 1,9 2,3Rear handle, m/s2 2,6 2,6 2,7Chain/barStandard bar length, inch/cm 13"/33 13"/33 13"/33Recommended bar lengths, inch/cm 13-20/33-50 13-20/33-50 13-20/33-50Usable cutting length, inch/cm 12-19/31-49 12-19/31-49 12-19/31-49Pitch, inch/mm 0,325/8,25 0,325/8,25 0,325/8,25Thickness of drive links, inch/mm 0,058/1,5, 0,050/1,3 0,058/1,5, 0,050/1,3 0,058/1,5, 0,050/1,3Type of drive sprocket/number of teeth Spur/7 Spur/7 Spur/7Chain speed at max. power, m/sec 17,3 17,3 17,3