7
en
Wood and light-metal dust
can cause spontaneous com-
bustion or explosions.
Hot mixtures of sanding dust and paint/var-
nish residuals or other chemical materials in
the filter bag or the vac filter can self-ignite
under unfavourable conditions, such as
sparking from sanding metal, continuous
sunlight or high ambient temperatures. To
prevent this:
–
Avoid overheating the material being
sanded and the power tool.
–
Empty the dust collector/container rou-
tinely.
–
Observe the material manufacturer’s
working instructions.
–
Observe the relevant regulations for the
materials being worked.
Emission values for sound
(Two-figure – specifications as per ISO 4871)
Extension cable.
If the use of an extension
cord is required, its length
and conductor cross-section must be ade-
quate for the application in order to prevent
a voltage drop in the extension cord, power
loss and overheating of the power tool.
Oth-
erwise, the extension cable and power tool
are prone to electrical danger, and the
working efficiency is decreased.
CAUTION
Sound emission
JMU 137 QW
(**)
JMU 137 MQW
(**)
JMU 137-2 QW
(**)
JMU 137 PQW
(**)
A-weighted emission pressure
power level measured at the
workplace
L
pA
(re 20 μPa),
in decibels
82.3
82.3
83.2
86.7
Measuring uncertainty
K
pA
,
in decibels
5
5
5
3
Measured A-weighted sound
power level
L
wA
(re 1 pW),
in decibels
93.2
93.2
94.2
97.7
Measuring uncertainty
K
wA
,
in decibels
5
5
5
3
C-weighted peak sound pres-
sure level measured at the
workplace
L
pCpeak
, in decibels
95.9
95.9
96.8
101.2
Measuring uncertainty
K
pCpeak
,
in decibels
5
5
5
3
Mean vibrational value (core
drilling)
–
m/s
2
–
ft/s
2
< 2.5
8.3
< 2.5
8.3
< 2.5
8.3
< 2.5
8.3
Measuring uncertainty
K
, in
–
m/s
2
–
ft/s
2
1.5
4.9
1.5
4.9
1.5
4.9
1.5
4.9
REMARK: The sum of the measured emission value and respective measuring inaccuracy
represents the upper limit of the values that can occur during measuring.
Wear hearing protection!
Measured values determined in accordance with the corresponding product standard.
WARNING
