Telwin Tecnica 188 MPGE Mode D'emploi page 4

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INSTRUCTION MANUAL
WARNING! BEFORE USING THE TORCH READ THE
INSTRUCTION MANUAL CAREFULLY.
TORCH FOR TIG WELDING DESIGNED FOR
INDUSTRIAL AND PROFESSIONAL USE.
1. GENERAL SAFETY
CONSIDERATIONS FOR ARC
WELDING
The operator should be properly trained to use the torch
safely and should be informed about the risks related to
arc welding procedures, the associated protection
measures and emergency procedures.
(Refer also to the "IEC TECHNICAL SPECIFICATION or
CLC/TS 62081": INSTALLATION AND USE OF
EQUIPMENT FOR ARC WELDING).
- Before any maintenance on the torch, let it cool and
disconnect welding machine from mains.
- 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.
- Do not use the torch 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.
- Use adequate electrical insulation with regard to the
electrode, the work piece 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.
EXTRA PRECAUTIONS
WELDING OPERATIONS:
- In environments with increased risk of 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.
Technical protection measures MUST BE taken as
described in 5.10; A.7; A.9. of the "IEC TECHNICAL
SPECIFICATION or CLC/TS 62081".
- 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 use measuring
instruments to determine the existence of a risk and
should take suitable protection measures as detailed
in 5.9 of the "IEC TECHNICAL SPECIFICATION or
CLC/TS 62081".
RESIDUAL RISKS
- IMPROPER USE: it is hazardous to use the torch for
any work other than that for which it was designed.
2. CONNECTION
- 4 -
(TAB.1 PAG.7)