INDURO 165 OWNERS MANUAL
Page 17
TOXIC FUME PREVENTION.
Adequate ventilation with air is essential. Severe discomfort, illness or death can
result from fumes, vapours, heat, or oxygen depletion that welding or cutting may produce.
NEVER ventilate with oxygen.
Lead, cadmium, zinc, mercury, and beryllium bearing and similar materials when
welded or cut may produce harmful concentrations of toxic fumes. Adequate local exhaust
ventilation must be used, or each person in the area as well as the operator must wear an
air-supplied respirator. For beryllium, both must be used.
Metals coated with or containing materials that emit fumes should not be heated
unless coating is removed from the work surface, the area is well ventilated, or the
operator wears an air-supplied respirator.
Work in a confined space only while it is being ventilated and, if necessary, while
wearing air-supplied respirator.
Vapours from chlorinated solvents can be decomposed by the heat of the arc (or
flame) to form PHOSGENE, a highly toxic gas, and lung and eye irritating products. The
ultra-violet (radiant) energy of the arc can also decompose trichlorethylene and
perchlorethylene vapours to form phosgene. Do not weld or cut where solvent vapours
can be drawn into the welding or cutting atmosphere or where the radiant energy can
penetrate to atmospheres containing even minute amounts of trichlorethylene or
percholorethylene.
FIRE AND EXPLOSION PREVENTION.
Be aware that flying sparks or falling slag can pass through cracks, along pipes,
through windows or doors, and through wall or floor openings, out of sight of the operator.
Sparks and slag can travel up to 10 metres from the arc.
Keep equipment clean and operable, free of oil, grease, and (in electrical parts) of
metallic particles that can cause short circuits.
If combustibles are present in the work area, do NOT weld or cut. Move the work if
practicable, to an area free of combustibles. Avoid paint spray rooms, dip tanks, storage
areas, ventilators. If the work can not be moved, move combustibles at least 10 metres
away out of reach of sparks and heat; or protect against ignition with suitable and snug -
fitting fire-resistant covers or shields.
Walls touching combustibles on opposite sides should not be welded on or cut.
Walls, ceilings, and floor near work should be protected by heat-resistant covers or
shields.
