![background image](http://html1.mh-extra.com/html/hilti/te-md-20-msha/te-md-20-msha_operating-instructions-manual_2136310006.webp)
3
2.6 Additional Specific Safety Rules
a)
Hold tools by insulated gripping surfaces when
performing an operation where the cutting tool
may contact hidden wiring or its own cord.
Con-
tact with a “live” wire will make exposed metal
parts of the tool “live” and shock the operator.
b)
Wear ear protectors when using the tool for
extended periods.
Prolonged exposure to high
intensity noise can cause hearing loss.
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 respi-
ratory 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 chemicallytreated 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 approved
safety equipment, such as respiratory protection
appropriate for the type of dust generated, and
designed to filter out microscopic particles and
direct dust away from the face and body. Avoid pro-
longed contact with dust. Wear protective 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 absorption of
harmful chemicals.
3. Specific safety rules and symbols
3.1 Basic safety information
In addition to the safety rules listed in the individual sec-
tions of these operating instructions, the following points
must be strictly observed at all times.
3.2 Use for intended purpose
The tool is designed for drilling in rock (not in reinforced
concrete) with drill bits of 32–42 mm diameter to depths
of up to 2.4 m.
Use in environments where there is a risk of explosion
is permissible. The tool complies with the provisions
and requirements of 94/9/EC (ATEX) for:
Group I
category M2
→
Mining and explosive atmos-
pheres (firedamp)
Group II
category 2G
→
Other areas where there is a
risk of explosion, where gasses and vapours of the group
IIA (at the customer’s request, also for gasses and
vapours of the group IIB) with ignition temperature above
135°C may be encountered.
3.3 Incorrect use (misuse)
●
Changes or modifications to the tool are not permissible.
●
To avoid the risk of injury, use only genuine Hilti acces-
sories and ancillary equipment.
●
Observe the information printed in the operating instruc-
tions concerning operation, care and maintenance.
3.4 State of the art
●
The tool is designed and manufactured according to
the state of the art.
●
The tool and its ancillary equipment may present haz-
ards when used incorrectly by untrained personnel or
not as directed.
3.5 Proper arrangement and organisation of the work-
place
●
Wear non-slip footwear and always work from a secure
stance.
●
It is recommended that rubber gloves are worn when
working.
●
Do not wear loose clothing, loose long hair and jew-
ellery which could become caught up in moving parts.
●
Avoid unfavourable body positions.
●
Ensure that the workplace is well lit.
●
Ensure that the workplace is well ventilated.
●
Objects which could cause injury should be removed
from the working area.
●
Keep other persons outside the area affected while you
are working.
●
To avoid tripping while working, always lead the sup-
ply cord, extension cord and water hose away to the
rear of the tool.
●
The tool may be used only in conjunction with the
TE-MW, TE-MW T water leg or a drilling aid designed
for this purpose.
●
Take care of the drill bits. You will work more efficiently
and more safely if the drill bits are kept clean and sharp.
Observe the maintenance regulations and instructions
on changing drill bits.
3.6 General hazards presented by the tool
●
Operate the tool only as directed and only when it is in
faultless condition.
●
Keep the grips dry, clean and free from oil and grease.
●
Never leave the tool unsupervised.
●
Avoid unintentional starting. Ensure that the ON / OFF
switch is in the OFF position during transport.
●
Use only the original accessories or items of additional
equipment listed in the operating instructions. The use
of other drill bits or accessories may present a risk of
injury.
●
Do not overload the tool. The tool operates more effi-
ciently and more safely within its given performance
range.
●
Unplug the supply cord when the tool is not in use (e.g.
during pauses between work), before cleaning or main-
tenance and when changing drill bits.
●
When not in use, the tool must be stored in a dry place,
locked up or where out of reach of unauthorised persons.
Printed: 20.04.2017 | Doc-Nr: PUB / 5136192 / 000 / 00
Printed: 20.04.2017 | Doc-Nr: PUB / 5136192 / 000 / 01