Dynapac F 121 C, Руководство по эксплуатации и техническому обслуживанию

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B 21
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7 EN standards
7.1 Continuous sound level F121C, Deutz TCD 2012L06
m
The operator always must use ear protection. The emission value at the ear of the
driver 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 finisher has been measured under free-field condi-
tions according to prEN 500-6, dated March, 1997, and ISO 4872 at a normal engine
speed of 2100 rpm.
Sound pressure level at the operator’s position
(at the height of the head):
L
AF
= 83,7 dB(A)
Sound capacity level: L
WA
= 108,0 dB(A)
Sound pressure level at the machine
7.2 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.
7.3 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)) 74,9 73,1 72,5 74,7 71,4 72,8
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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