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TECHNICAL DATA
115 13 81-95 Rev.3 2008-12-15
Technical data
445 445e 450e 450
Engine
Cylinder displacement, cu.in/cm
3
2,79/45,7 2,79/45,7 3,06/50,2 3,06/50,2
Cylinder bore, inch/mm 1,65/42 1,65/42 1,73/44 1,73/44
Stroke, inch/mm 1,30/33 1,30/33 1,30/33 1,30/33
Idle speed, rpm 2700 2700 2700 2700
Power, kW/hp @ rpm 2,1 / 2,8 @ 9000 2,1 / 2,8 @ 9000 2,4/3,2 @ 9000 2,4/3,2 @ 9000
Ignition system
Manufacturer of ignition system Walbro Walbro Walbro Walbro
Type of ignition system MBU-16 MBU-16 MBU-16 MBU-16
Spark plug
NGK BPMR 7A/
Champion RCJ 7Y
NGK BPMR 7A/
Champion RCJ 7Y
NGK BPMR 7A/
Champion RCJ 7Y
NGK BPMR 7A/
Champion RCJ 7Y
Electrode gap, inch/mm 0,02/0,5 0,02/0,5 0,02/0,5 0,02/0,5
Fuel and lubrication system
Manufacturer of carburetor Zama Zama Zama Zama
Carburetor type EL 37 EL 37 EL 37 EL 37
Fuel tank capacity, US pint/litre 0,99/0,47 0,99/0,47 0,99/0,47 0,99/0,47
Oil pump capacity at 9,000 rpm, ml/min 13 13 13 13
Oil tank capacity, US pint/litre 0,55/0,26 0,55/0,26 0,55/0,26 0,55/0,26
Type of oil pump Not adjustable Not adjustable Not adjustable Not adjustable
Weight
Chain saw without bar or chain, empty
tanks, lb/kg 10,8/4,9 11,2/5,1 11,2/5,1 10,8/4,9
Chain/bar
Standard bar length, inch/cm 15”/38 15”/38 15”/38 15”/38
Recommended bar lengths, inch/cm 13-20/33-50 13-20/33-50 13-20/33-50 13-20/33-50
Usable cutting length, inches/cm 12-19/31-49 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 0,325/8,25
Thickness of drive links, inch/mm 0,050/1,3 0,050/1,3 0,050/1,3 0,050/1,3
0,058/1,5 0,058/1,5 0,058/1,5 0,058/1,5
Drive sprocket type/teeth Spur/7 Spur/7 Spur/7 Spur/7
Chain speed at max. power, m/sec 20,0 20,0 20,0 20,0