Operation Manual

8
Model
EN4950H EN4951SH
Loop handle Straight handle
Dimensions (L x W x H) 2,550 mm x 242 mm x 241 mm 2,050 mm x 221 mm x 241 mm
Net weight 6.9 kg 6.6 kg
Volume (fuel tank) 0.6 L
Cutting length 490 mm
Maximum branch diameter 7 mm
Cutting strokes 4,200 min
-1
Engine type Air cooled, 4-stroke, single cylinder
Engine displacement 25.4 cm
3
Maximum engine performance 0.77 kW at 7,000 min
-1
Engine speed
at recommended max, spindle speed
10,000 min
-1
Fuel consumption 0.33 kg/h
Specic fuel consumption 408 g/kWh
Idling speed 3,000 min
-1
Clutch engagement speed 4,400 min
-1
Carburetor
(Diaphragm carburetor)
Diaphragm type
Spark plug type NGK CMR4A
Electrode gap 0.7 - 0.8 mm
Vibration per ISO 10517 Vibration per ISO 22867
Right handle (rear grip)
a
hv eq
8.9 m/s² 8.0 m/s²
Uncertainty K 3.3 m/s² 1.1 m/s²
Left handle (front grip)
a
hv eq
6.3 m/s² 8.0 m/s²
Uncertainty K 1.4 m/s² 1.4 m/s²
Noise per ISO 10517 Noise per ISO 22868
Sound pressure level 90 dB (A) 90.2 dB (A)
Uncertainty K 1.8 dB (A) 1.0 dB (A)
Sound power level 102.2 dB (A) 102.2 dB (A)
Uncertainty K 1.6 dB (A) 0.6 dB (A)
Fuel Automobile gasoline (petrol)
Engine oil
API grade SF class or higher, SAE 10W-30 oil
(automobile 4-stroke engine oil)
Gear ratio 1/4.78
TECHNICAL DATA