Telwin MIG-MAG 220 A Manuel D'utilisation page 5

INSTRUCTION MANUAL
WARNING:
BEFORE USING THE WELDING MACHINE READ THE
INSTRUCTION MANUAL CAREFULLY.
CONTINUOUS WIRE WELDING MACHINE FOR MIG/MAG
AND FLUX ARC WELDING DESIGNED FOR INDUSTRIAL AND
PROFESSIONAL USE.
Note: In the following text the term "welding machine" will be
used.
1. GENERAL SAFETY CONSIDERATIONS FOR ARC WELDING
The operator should be properly trained to use the welding
machine safely and should be informed about the risks related
to arc welding procedures, the associated protection measures
and emergency procedures.
(Please refer to the applicable standard "EN 60974-9: Arc
welding equipment. Part 9: Installation and Use).
- Avoid direct contact with the welding circuit: the no-load
voltage supplied by the welding machine can be dangerous
under certain circumstances.
- When the welding cables are being connected or checks
and repairs are carried out the welding machine should be
switched off and disconnected from the power supply outlet.
- Switch off the welding machine and disconnect it from the
power supply outlet before replacing consumable torch parts.
- Make the electrical connections and installation according to
the safety rules and legislation in force.
- The welding machine should be connected only and
exclusively to a power source with the neutral lead connected
to earth.
- Make sure that the power supply plug is correctly connected
to the earth protection outlet.
- Do not use the welding machine in damp or wet places and do
not weld in the rain.
- Do not use cables with worn insulation or loose connections.
- Do not weld on containers or piping that contains or has
contained flammable liquid or gaseous products.
- Do not operate on materials cleaned with chlorinated solvents
or near such substances.
- Do not weld on containers under pressure.
- Remove all flammable materials (e.g. wood, paper, rags etc.)
from the working area.
- Provide adequate ventilation or facilities for the removal of
welding fumes near the arc; a systematic approach is needed
in evaluating the exposure limits for the welding fumes, which
will depend on their composition, concentration and the
length of exposure itself.
- Keep the gas bottle (if used) away from heat sources,
including direct sunlight.
- Make sure there is adequate electrical insulation with respect
to the torch, the workpiece and any (accessible) earthed metal
parts in the vicinity.
This is normally achieved by wearing gloves, shoes, head
coverings and clothing designed for this purpose and by
using insulating platforms or mats.
- Always protect your eyes using masks or helmets with special
actinic glass.
Use special fire-resistant protective clothing and do not allow
the skin to be exposed to the ultraviolet and infrared rays
produced by the arc; other people in the vicinity of the arc
should be protected by shields of non-reflecting curtains.
GB
- The flow of the welding current generates electromagnetic
fields (EMF) around the welding circuit.
Electromagnetic fields can interfere with certain medical
equipment (e.g. Pace-makers, respiratory equipment, metallic
prostheses etc.).
Adequate protective measures must be adopted for persons
with these types of medical apparatus. For example, they must
be forbidden access to the area in which welding machines are
in operation.
This welding machine conforms to technical product standards
for exclusive use in an industrial environment for professional
purposes. It does not assure compliance with the basic limits
relative to human exposure to electromagnetic fields in the
domestic environment.
The operator must adopt the following procedures in order to
reduce exposure to electromagnetic fields:
- Fasten the two welding cables as close together as possible.
- Keep head and trunk as far away as possible from the welding
circuit.
- Never wind welding cables around the body.
- Avoid welding with the body within the welding circuit. Keep
both cables on the same side of the body.
- Connect the welding current return cable to the piece being
welded, as close as possible to the welding joint.
- Do not weld while close to, sitting on or leaning against the
welding machine (keep at least 50 cm away from it).
- Do not leave objects in ferromagnetic material in proximity of
the welding circuit.
- Minimum distance d= 20 cm (Fig. G).
- Class A equipment:
This welding machine conforms to technical product standards
for exclusive use in an industrial environment and for
professional purposes. It does not assure compliance with
electromagnetic compatibility in domestic dwellings and in
premises directly connected to a low-voltage power supply
system feeding buildings for domestic use.
EXTRA PRECAUTIONS
- WELDING OPERATIONS:
- In environments with increased riskof electric shock;
- In confined spaces;
- In the presence of flammable or explosive materials;
MUST BE evaluated in advance by an "Expert supervisor"
and must always be carried out in the presence of other
people trained to intervene in emergencies.
All protective technical measures MUST be taken as
provided in 7.10; A.8; A.10 of the applicable standard EN
60974-9: Arc welding equipment. Part 9: Installation and
Use".
- Welding MUST NOT be allowed if the welding machine or wire
feeder is supported by the operator (e.g. using belts).
- The operator MUST NOT BE ALLOWED to weld in raised
positions unless safety platforms are used.
- VOLTAGE BETWEEN ELECTRODE HOLDERS OR TORCHES:
working with more than one welding machine on a single piece
or on pieces that are connected electrically may generate a
dangerous accumulation of no-load voltage between two
different electrode holders or torches, the value of which may
reach double the allowed limit.
An expert coordinator must be designated to measuring
the apparatus to determine if any risks subsist and suitable
protection measures can be adopted, as foreseen by section
7.9 of the applicable standard "EN 60974-9: Arc welding
equipment. Part 9: Installation and Use".
RESIDUAL RISKS
- OVERTURNING: position the welding machine on a horizontal
surface that is able to support the weight: otherwise (e.g.
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