28 – English
Technical data
120 125
Engine
Cylinder displacement, cm
3
35 40
Cylinder bore, mm 37,9 40,5
Stroke, mm 31 31
Idle speed, rpm 2700-3300 2700-3300
Power, kW/ rpm 1,44/9000 1,52/9000
Ignition system
Spark plug TORCH CMR7H TORCH CMR7H
Electrode gap, mm 0,6 0,6
Fuel and lubrication system
Fuel tank capacity, litre/cm
3
0,25/250 0,25/250
Oil pump capacity at 9,000 rpm, ml/min 13 13
Oil tank capacity, litre/cm
3
0,15/150 0,15/150
Type of oil pump Automatic Automatic
Weight
Chain saw without bar or chain, empty tanks, kg 4,4 4.6
Noise emissions (see note 1)
Sound power level, measured dB(A) 109 105
Sound power level, guaranteed L
WA
dB(A) 111 108
Sound levels (see note 2)
Equivalent sound pressure level at the operator’s
ear, dB(A)
99 99
Equivalent vibration levels, a
hveq
(see note 3)
Front handle, m/s
2
6,7 6,7
Rear handle, m/s
2
5,8 5,8
Chain/bar
Standard bar length, inch/cm
16/40
18/45
Recommended bar lengths, inch/cm
14-16/35-40
16-18 / 40-45
Usable cutting length, inch/cm
13-15/33-38 15-17/38-43
Pitch, inch/mm 3/8 / 9,52 3/8 / 9,52
Thickness of drive links, inch/mm 0,050/1,3 0,050/1,3
Type of drive sprocket/number of teeth Spur/6 Spur/6
Chain speed at max. power, m/sec
17,2 17,2
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
different sound pressure levels under various working conditions. Typical statistical dispersion for equivalent sound
pressure level is a standard deviation of 2.5 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 1.5 m/s
2
.
TECHNICAL DATA
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