McCulloch M4620 - TECHNICAL DATA SHEET

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TECHNICAL DATA SHEET
ENGINE M4620
Cylinder displacement, cm
3
46
Stroke, mm 32
Idle speed, rpm 3000
Recommended max. speed, uploaded, rpm 13000
Power, kW 1,9
IGNITION SYSTEM
Spark plug Champion RCJ--7Y
Electrode gap, mm 0,5
FUEL AND LUBRICATION SYSTEM
Fuel tank capacity, litre 0,4
Oil pump capacity at 8500 rpm, ml/min 4 -- 8
Oil capacity, litre 0,2
Type of oil pump Automatic
WEIGHT
Weight without bar or chain, empty tanks, kg 4,7
NOISE EMISSIONS
(see Note 1)
Sound power level, measured dB(A) 110
Sound power level, guaranteed L
WA
dB(A) 118
NOISE LEVELS
(see Note 2)
Equivalent sound pressure level at the
operators’ ear, dB(A) 103
VIBRATION LEVELS
(see Note 3)
Equivalent vibration levels (a
hv,eq
), m/s
2
Front handle 2,2
Rear handle 4,8
CHAIN/BAR
Standard bar length, inch/cm 20/51
Recommended bar lengths, inch/cm 20/51
Usable cutting length, inch/cm 19,5/50
Pitch, inch 0,325
Thickness of drive links, inch/mm 0,050/1,3
No. of teeth on drive sprocket 7
Chain speed at max. power, m/sec 21,78
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 toISO 22868,is calculated as thetime--weighted
energy total for different noise pressure levels under various working conditions. Typical statistical
dispersion for equivalent sound pressure 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 vibration levels under various working conditions. Reported data for equivalent
vibration level has a typical statistical dispersion (standard deviation) of 1 m/s
2
.