Technical Data, 371K 375K, Cutting equipment

TECHNICAL DATA

Engine	371K	375K
Engine
Cylinder volume, cu.in/cm3	70,7	74,7
Cylinder bore, inch/mm	Ø 50	Ø 51,4
Stroke, inch/mm	36	36
Idle speed, rpm	2 500	2 500
Max. speed, unloaded, rpm	9 800 ± 250	9 800 ± 250
Power, kW	3,5	3,7
Ignition system
Manufacturer	SEM	SEM
Type of ignition system	CD	CD
Spark plug	Champion RCJ-7Y	Champion RCJ-7Y
Electrode gap, inch/mm	NGK BPMR 7	NGK BPMR 7
Electrode gap, inch/mm	0,5	0,5
Fuel and lubrication system
Manufacturer	Walbro	Walbro
Carburettor type	HD 20	HD 20
Fuel capacity, US pint/litre	0,77	0,77
Weight
Without fuel and cutting blade, Lbs/kg
12" (∅ 300 mm)	9,4	–
14" (∅ 300 mm)	–	9,7
Noise emissions
(see note 1)
Sound power level, measured dB(A)	114	116
Sound power level, guaranteed LWA dB(A)	115	116
Sound levels
(see note 2)
Equivalent noise pressure level at the user’s ear,
measured according to EN 1454, dB(A).	102	102
Vibration levels
Handle vibrations measured according to EN 1454,	12" (∅ 300 mm)	14" (∅ 350 mm)
m/s2	12" (∅ 300 mm)	14" (∅ 350 mm)
Front handle, idling, m/s2	4,9	6,5
Front handle, full speed, m/s2	3,0	2,7
Rear handle, idling, m/s2	5,6	9,2
Rear handle, full speed, m/s2	4,0	4,6

Note 1: Noise emissions in the environment measured as sound power (LWA) in conformity with EC directive 2000/14/EC.

Note 2: Equivalent sound pressure level is calculated as the time-weighted energy total for sound pressure levels under various

working conditions with the following time distribution: 1/2 idling and 1/2 max speed.

– English