Sound Specification; Vibration Specification - NU CT424 Operator's Manual

4.3 Sound Specification

The required sound specification:
The sound pressure level at operator's location (L
The guaranteed sound power level (L
These sound values were determined according to ISO 3744 for the sound power level (L
ISO 11204 for the sound pressure level (L

4.4 Vibration Specification

The weighted effective acceleration value, determined according to ISO 2361-1 and ISO 5349, is:
for hand arm:
CT424 Series: 1.1 m/s
CT430 Series: 1.3 m/s
The sound and vibration specifications were obtained with the unit operating on fully cured, water
wetted concrete at nominal engine.
)
WA
pA
2
2
CT424 Series
) 87dB(A)
pA
102dB(A)
) at the operator's location.
18
CT430 Series
90dB(A)
115dB(A)
) and
WA