Information About Noise Level And Vibrations; Double Insulation; Protective Elements And Their Assembly; Grinding Or Cutting Wheel Fixing - Narex EBU 150‑14 CEA Instrucciones De Uso

wires by applying excessive load to the brush. The wire
bristles can easily penetrate light clothing and/or skin.
b) If the use of a guard is recommended for wire brush‑
ing, do not allow any interference of the wire wheel or
brush with the guard. Wire wheel or brush may expand
in diameter due to work load and centrifugal forces.
Information about noise level and
vibrations
The values have been measured in conformity with EN 60745.
Acoustic pressure level L
pA
Acoustic power level L = 103 dB (A).
wA
In accuracy of measurements K = 2 dB (A).
ATTENTION! Noise is generated during work!
Use ear protection!
The weighted value of vibrations affecting hands and arms
a = 2.64 m.s .
-2
h
In accuracy of measurements K = 1 m.s
The emission values specified (vibration, noise) were meas-
ured in accordance with the test conditions stipulated in
EN 60745 and are intended for machine comparisons. They are
also used for making preliminary estimates regarding vibra-
tion and noise loads during operation.
The emission values specified refer to the main applications
for which the power tool is used. If the electric power tool is
used for other applications, with other tools or is not main-
tained sufficiently prior to operation, however, the vibration
and noise load may be higher when the tool is used.
Take into account any machine idling times and downtimes
to estimate these values more accurately for a specified time
period. This may significantly reduce the load during the ma-
chine operating period.

Double insulation

To ensure maximum safety of the user, our tools are designed
and built to satisfy applicable European standards (EN stand-
ards). Tools with double insulation are marked by the inter-
national symbol of a double square. These tools must not be
grounded and a two-wire cable is sufficient to supply them
with power. Tools are shielded in accordance with EN 55014.
Use
The machine is designed for splitting, roughing and brushing
metal and stone materials without the use of water. For cut-
ting stone, a cutting guide is required.
The user himself is liable for any improper use.
Protective elements and their
assembly
The grinder may be used with mounted protective guard only!
Attention! Prior to handling the accessories, the
power supply cable has always to be disconnected
from the power source socket!
Protective guard
Attention! The protective guard intended only
and exclusively for work with the grinding wheels
is the integral part of the standard angular grind‑
er outfit. When cutting, the angular grinder has to be
equipped by the protective guard intended for work with
the cutting wheels; it can be purchased in the trade net‑
work under the order No. 00 763 301 for dia. 150 mm. Fail‑
ing to use the guard for cutting, you run the increased risk
of injury and in this case (non‑use of the special guard for
= 91.6 dB (A).
.
-2
cutting) the company Narex is not liable anyhow for pos‑
sible harm of health of the user or another person injured
as the consequence of breach of the safety rules.
Put the protective guard (8a; 8b) on the clamping collet (6).
The guide lugs (9) must be inserted into the grooves on the
clamping collet. Set the protective guard (8a; 8b) to the re-
quested working position.
Note: The protective guard has been designed so that no tool
may be needed for fixing the protective guard in the request-
ed working position.
Attention! For safety reasons the clamping
bolt (10) has been tightened in the manufacturing
plant by the torque 3.5 Nm so that the safety
guard may not be loose on the clamping collet (6), but
may be swiveled by hand after overcoming the set resist‑
ance. It is necessary to check the mounted protective
guard ‑ it may not be loose (may not wobble) on the
clamping collet. For possible tightening the clamping
bolt (10) use the hexagonal wrench dia. 4 mm (18) and
check the torque 3.5 Nm.
Additional handle SOFTGRIP
The additional handle (17) can be screwed from the left or
right gearbox (5) side or from the top gearbox (5) part.
Thanks to the special design vibrations are reduced by the ad-
ditional handle (17).
Autobalancer (self‑balancing assembly)
Autobalancer (11) is pressed on the grinder spindle by the
manufacturing plant and other angular grinders cannot be
equipped by the Autobalancer additionally. By its design Auto-
balancer reduces the vibrations generated as the consequence
of wheel disbalance, thus protecting the operator from their
harmful impact effectively.
Note: Autobalancer (11) replaces the bottom flange.

Grinding or cutting wheel fixing

Attention! Prior to handling the accessories, the
power supply cable has always to be disconnected
from the power source socket!
Mounting with the standard clamping nut
Clean the clamping nut (13) as well as the clamping surfac-
es of the grinding or cutting wheel. Place the grinding (12)
or cutting wheel (12). Then put the clamping nut (13) on the
spindle (7) so that when fixing the grinding wheel (12), the
clamping nut recess (15) must be faced towards the wheel
and when fixing the cutting wheel (12), the clamping nut re-
cess (15) must be directed from the wheel!
Depress the lock spindle pin (3).
Attention! Use the lock spindle pin (3) only if the
spindle is at rest and the grinder is de‑energized.
Swivel the wheel /spindle, until the lock spindle pin (3) is
engaged. Tighten the clamping nut (13) firmly, using the
wrench (16).
Attention! Prior to starting the grinder, verify that
the wheel does not rotate freely between the au‑
tobalancer (11) and the clamping nut (13).
Mounting with quick‑clamping nut
The quick-clamping nut must be tightened or loosened by
hand only (never use any additional tool!). Mounting of the
grinding or cutting wheel is the same like for the grinder with-
out the quick-clamping nut, with the sole difference, that after
spindle locking the quick-clamping nut (14) may be tightened
by hand only.
English
21