gala gar THV 50 Guide De L'utilisateur page 4

4. Ventilation
The smoke produced by the welding, mainly in closed spaces can provoke irritations if breathed during a long
period of time.
a) Always take special care having proper ventilation in the welding places by the means of natural or forced
ventilation systems. Do not weld over zinc galvanised materials, cadmium, lead or beryllium, without prevent the
needed ventilation to avoid smoke provoked by the welding of these materials.
b) Do not weld near places containing chlorinated hydrocarbon vapors resultants from degreasing operations.
Reactions can be provoked from the vapors of dissolvent with the resultant heat of electric welding arc producing
toxic or irritating gas.
c) Eye, nose or throat irritations during the welding process means that the ventilation system isn't proper. In this
case the ventilation should be increased in the welding area. Stop the welding operation if the irritations persist.
5. Equipment maintenance
The quality of the welding process depends on the good condition of the welding equipment. To maintain its
good condition and protect the operator, maintenance reviews should be made periodically. If reviews aren't
made, accidents can occur due to fire or electric discharges. Therefore:
a) The equipment installation and maintenance operations must be done by qualified personal. Do not proceed
with electric repairs if you are not properly qualified.
b) Before starting with any maintenance operation the welding equipment must be disconnect from the power
supply.
c) The welding cables and the power supply cable and even the welding machine must be kept in good working
conditions. This equipment must never be used in less proper working conditions.
d) The welding equipment and its accessories must be treated carefully. Keep the machine far from heating
sources, ovens or hothouses, from humid places as water wells, oils or lubricants, from corrosive environments
or intemperate weather.
e) Keep the safety systems and the chassis of the machine in proper working conditions.
f) Use the welding equipment only in jobs that are according to the equipment characteristics.
6. Using WELDING or GAS CUTTING equipment.
a) The operator of welding or gas cutting equipments must know the specific characteristics and the correct form
of use.
b) The pressures ought to be according to the manufacture recommendations.
c) The welding torches, hoses and reducers must be kept well tightened with no leaks, cleaned and free from oils
or lubricant greases.
d) The pressure reducers can not be submitted to sudden changes of pressure and must be used according to
the manufacturer specifications. Do not use an installation without being equipped with proper retention valves.
e) Periodical checks must be made to the installation for detection possible gas leaks or other defects. Qualified
personnel must execute the maintenance operations.
7. Handling of Gas Tubes
The user must know and follow the safety instructions for stocking, use and transportation of compressed,
liquefied and dissolved gases under pressure used in welding or cutting operations.
Besides the specified norms must follow those that concern the kind of welding process to be used (Electrode,
Tig, Mig, Plasma, Plasmacutting, Laser, etc.), as well as the specific characteristics of the equipment, the power
supply conditions, hygiene norms and safety at work and the machine's safety regulations. The fulfillment of this
safety norms, does not guarantee that the content is enough for all cases or conditions, or invalids the fulfillment
of current legal norms.
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