Operating Noise - Kubota u15-3 Workshop Manual

d. Operating noise
At ear level (Canopy)
Around the machine
Acoustic power level
Low-noise specified number
Ultra-low noise specified number
Emission control specified
Standard operation
Energy tax system
(The noise at ear level is measured with the average energy output under no load at maximum rpm.)
Simulated digging is made at maximum engine rpm, and the then operating noise is measured within 10 m
in radius from the machine (imaginary hemispherical space with the machine length from 1.5 to 4 m).
Unit
db(A)
db(A)
db(A)
60 dB(A):
Sleeping
peacefully
80 dB(A):
Awakened
and weeping
Microphones
1.5 to 4 m
II-11
U15-3
78 >
92 >
WSM U15-3
Remarks