Dolmar MS-4520 U - Main Parts; Technical Characteristics; Technical Data Table

20
2. TECHNICAL CHARACTERISTICS
2.2 Main parts (Fig. 2 - Fig. 3)
1 - Mixture tank
2 - Starting grip
3 - Carburetor/Air casing
4 - Vibration-damping handle-bar/grip
5 - Vibration damper support
6 - Gas control knob lever with safety
7 - Transmission rod
8 - Bevel gear pair
9 - Cutting tool
10 - Safety guard
11 - Backpack
12 - Flexible shaft
Fig. 3
1
2
3 12
11
10
9
8
7 4
5
6
6
7
8
9
10
4
5 3
1 2
2. TECHNICAL CHARACTERISTICS
2.1 Technical data table
Fig. 2
MODELLO MS-4520 C MS-4520 U MS-4520 B MS-5700 C MS-5700 U MS-5700 B
Shaft diameter (mm) 27
Weight without cutting tools and fuel mixture (Kg) 7,5 7,7 10,9 7,5 7,7 10,9
Fuel tank capacity (cm
3
– litri)
900 - 0,9
Blade diameter (mm) 255 - 305
Blade thickness (mm) 1,4 - 1,6 - 1,8 - 3
Number of teeth (mm) 2 - 3 - 4 - 8
Diameter of attachment hole (mm) 25,5
Max. blade rotation speed (min
-1
)
8.000
Gear ratio 1,37
Rotation direction (as seen from above) Sinistro
Length (mm) 1785 1785 2760 1785 1785 2760
Width (mm) 385 560 385 385 560 385
Height (mm) 475 475 420 475 475 420
Displacement (cm
3
)
44,9 44,9 44,9 56,5 56,5 56,5
Maximum power (kW) in accordance with ISO 8893 1,62 1,62 1,62 2,21 2,21 2,21
Engine speed at max. power (min
-1
)
7.000
Engine speed at maximum reccomended rotation
frequency of bevel gear shaft
11.000
Bevel gear shaft speed (min
-1
)
8.000
Engine running at idle (min
-1
)
2.500
Specifi c fuel consumption at maximum power (g7kW*h)
as per ISO 8893.
898 898 898 852 852 852
Level of sound pressure (Lp
A
av) in dB
as per EN 27917 - Uncertainty of measurement: 1 dB(A)
92 92 92 93 93 93
Level of sound power (Lw
A
av) in dB
as per EN 10883 - Uncertainty of measurement: 1 dB(A)
112 112 112 113 113 113
Vibration level at minimum rpm (m/s
2
)
as per ISO 7916 - Uncertainty of measurement: 10%
0,85 0,85 0,85 0,87 0,87 0,87
Vibration level at maximum loadless rpm (m/s
2
)
as per ISO 7916 - Uncertainty of measurement: 10%
7,3 7,3 7,3 7,4 7,4 7,4