Makita GA4590 Instruction Manual page 9

Noise
The typical A-weighted noise level determined according to EN
Model
G A 4 590
G A 4 591
G A 4 592
G A 5090
G A 5091
G A 5092
NOTE: The declared noise emission value(s) has been measured in accordance with a standard test method and
may be used for comparing one tool with another.
NOTE: The declared noise emission value(s) may also be used in a preliminary assessment of exposure.
WARNING:
Wear ear protection.
WARNING:
The noise emission during actual use of the power tool can di er from the declared al-
ue(s) depending on the w ays in w hich the tool is used especially w hat kind of w orkpiece is processed.
WARNING:
Be sure to identify safety measures to protect the operator that are based on an estimation
of exposure in the actual conditions of use (taking account of all parts of the operating cycle such as the
times when the tool is switched o and when it is running idle in addition to the trigger time .
WARNING:
Grinding thin sheets of metal or other easily vibrating structures w ith a large surface can
result in a total noise emission much higher (up to 15 dB) than the declared noise emission values.
Set hea y exible damping mats or such to those workpieces to pre ent them from emitting sound.
Take the increased noise emission into consideration for both the risk assessment of noise exposure and
selecting adequate hearing protection.
Vibration
The vibration total value (tri-axial vector sum) determined according to EN
Work mode: surface grinding w ith normal side grip
Model
G A 4 590
G A 4 591
G A 4 592
G A 5090
G A 5091
G A 5092
Work mode: surface grinding w ith anti vibration side grip
Model
G A 4 590
G A 4 591
G A 4 592
G A 5090
G A 5091
G A 5092
8 1- - :
Sound pressure Sound po w er level
level (L ) : (dB(A)) (L
pA
93
90
93
93
90
93
8 1- - :
Vibration emission (a , ) : (m/s
h AG
4 .7
5.4
4 .7
7.9
7.4
7.9
Vibration emission (a , ) : (m/s
h AG
4 .9
5.2
4 .9
8.8
8.7
8.8
9 ENGLISH
Uncertainty (K) :
) : (dB(A)) (dB(A))
WA
101
98
101
101
98
101
2
) Uncertainty (K) : (m/s
1.5
1.5
1.5
1.5
1.5
1.5
2
) Uncertainty (K) : (m/s
1.5
1.5
1.5
1.5
1.5
1.5
3
3
3
3
3
3
2
)
2
)