English – 39
TECHNICAL DATA
115 13 81-26 Rev.3 2009-01-14
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, according to ISO 22868, is calculated as the time-weighted energy total for
noise pressure levels under various working conditions with the following time distribution: 1/3 idling, 1/3 max. load, 1/3
max. speed.
Note 3: Equivalent vibration level, according to ISO 22867, is calculated as the time-weighted energy total for vibration
levels under various working conditions with the following time distribution: 1/3 idling, 1/3 max. load, 1/3 max. speed.
445
445e
450e
Engine
Cylinder displacement, cm
3
45,7
45,7
50,2
Cylinder bore, mm
42
42
44
Stroke, mm
33
33
33
Idle speed, rpm
2700
2700
2700
Power, kW/ rpm
2,1/9000
2,1/9000
2,4/9000
Ignition system
Manufacturer of ignition system
Walbro
Walbro
Walbro
Type of ignition system
MBU-16
MBU-16
MBU-16
Spark plug
NGK BPMR 7A/
Champion RCJ 7Y/
Husqvarna PR 17Y
NGK BPMR 7A/
Champion RCJ 7Y/
Husqvarna PR 17Y
NGK BPMR 7A/
Champion RCJ 7Y/
Husqvarna PR 17Y
Electrode gap, mm
0,5
0,5
0,5
Fuel and lubrication system
Manufacturer of carburettor
Zama
Zama
Zama
Carburettor type
EL 37
EL 37
EL 37
Fuel tank capacity, litre
0,45
0,45
0,45
Oil pump capacity at 9,000 rpm, ml/min
13
13
13
Oil tank capacity, litre
0,26
0,26
0,26
Type of oil pump
Not adjustable
Not adjustable
Not adjustable
Weight
Chain saw without bar or chain, empty tanks, kg
4,9
5,1
5,1
Noise emissions
(see note 1)
Sound power level, measured dB(A)
112
112
113
Sound power level, guaranteed L
WA
dB(A)
114
114
115
Sound levels
(see note 2)
Equivalent sound pressure level at operator’s ear, measured
according to relevant international standards, dB(A)
103
103
104
Vibration levels
(see note 3)
Front handle, m/s
2
1,9
1,9
2,3
Rear handle, m/s
2
2,6
2,6
2,7
Chain/bar
Standard bar length, inch/cm
13"/33
13"/33
13"/33
Recommended bar lengths, inch/cm
13-20/33-50
13-20/33-50
13-20/33-50
Usable cutting length, inch/cm
12-19/31-49
12-19/31-49
12-19/31-49
Pitch, inch/mm
0,325/8,25
0,325/8,25
0,325/8,25
Thickness of drive links, inch/mm
0,050/1,3
0,050/1,3
0,050/1,3
0,058/1,5
0,058/1,5
0,058/1,5
Type of drive sprocket/number of teeth
Spur/7
Spur/7
Spur/7
Chain speed at max. power, m/sec
17,3
17,3
17,3