Safety Warnings Specific For Wire Brushing Operations - Hilti DEG 500-D Manual De Instrucciones

and take corrective action to eliminate the cause of
wheel binding.
d) Do not restart the cutting operation in the work-
piece. Let the wheel reach full speed and carefully
reenter the cut. The wheel may bind, walk up or kick-
back if the power tool is restarted in the workpiece.
en
e) Support panels or any oversized workpiece to
minimize the risk of wheel pinching and kickback.
Large workpieces tend to sag under their own weight.
Supports must be placed under the workpiece near
the line of cut and near the edge of the workpiece on
both sides of the wheel.
Use extra caution when making a "pocket cut"
f)
into existing walls or other blind areas. The pro-
truding wheel may cut gas or water pipes, electrical
wiring or objects that can cause kickback.
5.2.5 Additional safety instructions for sanding
operations
a) Do not use excessively oversized sanding disc
paper. Follow manufacturers recommendations,
when selecting sanding paper. Larger sanding pa-
per extending beyond the sanding pad presents a
laceration hazard and may cause snagging, tearing
of the disc or kickback.
5.2.6 Safety warnings specific for wire brushing
operations
a) Be aware that wire bristles are thrown by the
brush even during ordinary operation. Do not
overstress the 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
brushing, 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.
5.3 Additional safety instructions
5.3.1 Personal safety
a) Always hold the tool securely with both hands on
the grips provided. Keep the grips dry, clean and
free from oil and grease.
b) Breathing protection must be worn if the power
tool is used without a dust extraction system for
work that creates dust.
c) Improve the blood circulation in your fingers by
relaxing your hands and exercising your fingers
during breaks between working.
d) Avoid touching rotating parts. Switch the power
tool on only after bringing it into position at the
workpiece. Touching rotating parts, especially ro-
tating drill bits, discs or blades, etc. may lead to
injury.
e) Always lead the supply cord and extension cord
away from the power tool to the rear while work-
ing. This helps to avoid tripping over the cord while
working.
f) Children must be instructed not to play with the
power tool.
8
g) The power tool is not intended for use by children,
by debilitated persons or those who have received
no instruction or training.
h) WARNING: Some dust created by grinding, sand-
ing, cutting and drilling contains chemicals known
to cause cancer, birth defects, infertility or other
reproductive harm; or serious and permanent res-
piratory or other injury. Some examples of these
chemicals are: lead from lead-based paints, crys-
talline silica from bricks, concrete and other masonry
products and natural stone, arsenic and chromium
from chemically-treated lumber. Your risk from these
exposures varies, depending on how often you do
this type of work. To reduce exposure to these
chemicals, the operator and bystanders should
work in a well-ventilated area, work with ap-
proved safety equipment, such as respiratory pro-
tection appropriate for the type of dust generated,
and designed to filter out microscopic particles
and direct dust away from the face and body.
Avoid prolonged contact with dust. Wear protec-
tive clothing and wash exposed areas with soap
and water. Allowing dust to get into your mouth,
eyes, or to remain on your skin may promote absorp-
tion of harmful chemicals.
5.3.2 Power tool use and care
a) Grinding discs must be stored and handled care-
fully in accordance with the manufacturer's in-
structions.
b) Check that the grinding disc is fitted in accor-
dance with the manufacturer's instructions.
c) If use of a spacer ring or other intermediate part is
specified and the part is supplied with the grinding
disc, check to ensure that the part is fitted.
d) Never use the power tool without its matching
disc guard.
e) The workpiece must be fixed securely in place.
f) Before use, check that the cutting or grinding
disc has been fitted correctly and the clamping
nut tightened. Then allow the power tool to run
for 30 seconds under no load while holding it se-
curely. Switch off the power tool immediately if
significant vibration or any other faults are no-
ticed. Should this occur, examine the power tool
in order to determine the cause.
g) Do not use cutting discs for grinding.
h) Do not use type 27 grinding discs with integrated
clamping nut.
i) After disc breakage, or if the power tool is
dropped, falls or suffers other mechanical
damage, it must be checked at a Hilti Service
Center.
Take steps to ensure that flying sparks from the
j)
tool do not present a hazard, i.e. by striking your-
self or other persons or by igniting inflammable
substances. Adjust the position of the disc guard
accordingly.
k) In case of an interruption in the electric supply:
Switch the power tool off and unplug the supply
cord. This will prevent accidental restarting when the
electric power returns.