Jonsered GR50 Technical Data, Technical data, RS44, RS52, Engine, Ignition system, Weight, Type

TECHNICAL DATA

Technical data

Technical data	RS44	RS52
Engine
Cylinder displacement, cu.in/cm3	2,70/44,3	3,10/50,8
Cylinder bore, inch/mm	1,65/42	1,77/45
Stroke, inch/mm	1,26/32	1,26/32
Idle speed, rpm	2700	2700
Recommended max. speed, rpm	13500	13500
Speed of output shaft, rpm	10500	10500
Max. engine output, acc. to ISO 8893	2,0/9000	2,4/9600
Catalytic converter muffler	No	No
Ignition system
Manufacturer/type of ignition system	EM/ET	EM/ET
Spark plug	NGK BPMR 7A/Champion	NGK BPMR 7A/Champion
	RCJ 7Y	RCJ 7Y
Electrode gap, inch/mm	0,02/0,5	0,02/0,5
Fuel and lubrication system
Manufacturer/type of carburetor	Zama C1Q	Walbro HDA
Fuel tank capacity, US pint/litre	1,70/0,8	1,60/0,75
Weight
Weight without fuel, cutting attachment and guard, Lbs/kg 18,5/8,4		20,1/9,1
Sound levels
(see note 1)
Equivalent sound pressure level at the user′s ear,
measured according to ANSI B175.3-1997, dB(A), min/	100/103	98/104
max:
Vibration levels
Vibration levels at handles, measured according to ANSI
B175.3-1997, m/s2
At idle, left/right handles, min.:	2,5/2,7	3,4/4,0
At idle, left/right handles, max.:	3,5/3,5	3,4/4,0
At max. speed, left/right handles, min.:	3,3/3,3	1,4/3,0
At max. speed, left/right handles, max.:	4,8/5,4	5,8/7,4

Note 1: Equivalent noise pressure level is calculated as the time-weighted energy total for noise pressure levels under various

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

NOTE! Noise pressure at the user’s ear and vibration on the handles are measured with all the machine’s approved cutting equipment fitted. The table indicates the highest and lowest values.

RS44/RS52
Approved accessories	Type	Cutting attachment guard, Art. no.
Centre hole in blades/cutters, Ø 20 mm	Output shaft thread M12
Grass blade/grass cutter	Multi 255-3 (Ø 255 3 teeth)	502 26 34-03
	Multi 300-3 (Ø 300 3 teeth)	502 26 34-03
Saw blade	Opti XS 200-22 (Ø 200 22 teeth)	502 27 22-01
	Opti XS 225-22 (Ø 225 22 teeth)	502 03 94-05
Plastic blades	Polytrim Ø 300	503 91 60-03 / 502 26 34-03
Trimmer head	Trimmy S II	503 91 60-03
	Auto 55	503 91 60-03
Support cup	Fixed	-
	With ball bearing	-

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