Chain Saw, gas, 20 in. Bar

Engine
455 Rancher SKU: 970 51 57‑60
Power output 3.5 hp
Cylinder displacement 55.5 cm³
Maximum power speed 9,000 rpm
Max engine/motor RPM 13,300 rpm
Idling speed 2,700 rpm
Torque, max. 3.2 Nm
Torque, max. at rpm 6,600 rpm
Clutch engagement speed (±120) 3,900 rpm
Fuel consumption 407 g/kWh
Fuel consumption 2.29 lbs/h
Spark plug NGK BPMR7A, Champion RCJ7Y
Electrode gap 0.02 in
Ignition module air gap 0.01 in
Oil pump type Automatic
Oil pump capacity Max 17 ml/min
Oil pump capacity Min 6 ml/min
Exhaust emissions (CO2 EU V) 893 g/kWh

Equipment
Bar length (inch) 20 in
Recommended bar length, min-max 13-24 in
Pitch 3/8"
Sprocket type Spur 7
Dimensions
Weight (excl. cutting equipment) 13.2 lbs
Lubricant
Lubricant type Husqvarna 2 stroke or equiv. at 50:1
Oil tank volume 0.7 US pint

Sound and noise
Sound power level, guaranteed (LWA) 114 dB(A)
Sound power level, measured 112 dB(A)
Sound pressure level at operators ear 104 dB(A)

Vibrations
Equivalent vibration level (ahv, eq) front handle 3.8 m/s²
Equivalent vibration level (ahv, eq) rear handle 6.9 m/s²