Atlas Copco DYNAPAC Svedala Demag DF 115 C, Operation & Maintenance Manual

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B 22
B
635_
D
E
M
.D 2
2
-2
4 01
-
01.
07.
7.4 Continuous sound level DF135C, Deutz TCD 2013L06
m
The operator always must use ear protection. The imission value at the ear of the driv-
er varies depending on the materials used for paving and may even rise above 85 dB
(A). If no ear protection devices are used, hearing can be impaired.
The noise emission level of the paver finisher was measured under free-field condi-
tions according to EN 500-6 draft, dated March, 1997, and ISO 4872.
Sound pressure level at the operator’s position
(at the height of the head):
L
AF
= 83,5dB(A)
Sound capacity level: L
WA
= 109,0 dB(A)
Sound pressure level at the machine
7.5 Operating conditions during measurement
The diesel engine was running at maximum speed. The screed was in working posi-
tion, lowered to a rubber mat. The tamper and the vibrator were running at min. 50%
of their maximum speed, the augers at min. 40% and the conveyors at min. 10% of
their maximum speed.
7.6 Measuring point configuration
Semispherical measuring surface with a radius of 16 m. The machine was at the cent-
er. The measuring points had been assigned the following coordinates
Measuring point 2 4 6 8 10 12
Sound pressure level L
AFeq
(dB(A))
75,5 74,0 73,1 75,7 73,4 74,8
Measuring points 2, 4, 6, 8 Measuring points 10, 12
Coordinates X Y Z X Y Z
±11,2 ±11,2 1,5
- 4,32
+4,32 +10,4
-10,4
11,36
11,36
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