UltraMig 175
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8. Safety against smoke, vapors, and
noxious, toxic gases
Arc welding work must be carried out only in suitably
ventilated areas.
The fumes emitted during welding in workshops should
be exhausted progressively as they are produced, as
closely as possible to their point of emission, and as
efficiently as possible.
Chlorinated solvents and their vapors, even at a
distance, are transformed into toxic gases when they
come in contact with welding arc radiation.
9. Safety in the use of gases
Comply with the safety recommendations given by the
supplier and in particular:
Avoid impact:
• Secure the cylinders and protect them from impact
with moving equipment and from being knocked over.
• Avoid excess heat (greater than 500 C/1220 F).
• Check that the pressure relief knob or screw is
backed off before connection to the cylinder.
• Check that the valve and regulator connections are
tight before opening the valve on the cylinder. Open it
slowly a fraction of a turn.
• If there is a leak, never tighten a connection which is
under pressure. First close the valve on the cylinder.
• Always check that hoses are in good condition.
