Daihen varstroj VARMIG 231-i LCD, Owner'S Manual, Page: 35 / 100

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3.
Wear ear protectors; welding operations are often noisy and may disturb other person in the work
area.
4.
Always wear safety glasses with side shield, particularly during manual or mechanical removal of slag. High
temperature slag may be projected to great distances. Pay attention to fellow workers in the vicinity.
5.
Position a fire-resistant screen around the welding area to protect persons in the vicinity from arc rays, sparks
and slag.
6.
Compressed gas cylinders are potentially dangerous; consult the supplier for correct handling procedures.
Always protect cylinders from direct sunlight, flame, flames, sudden temperature changes and low temperatures.
1.3 Fire and explosion prevention
Hot slag and sparks can cause fire outbreaks. Explosions and fires can be prevented by
following the procedure described below:
Clear away or protect inflammable objects and substances (wood, saw dust, clothing, paints, solvents, petrol,
kerosene, natural gas, acetylene, propane, etc.) with fire-proof material..
1.
Always perform welding operations with caution, even when containers and tubes have been emptied and
thoroughly cleaned.
2.
As a preventative measure, keep extinguishing equipment within easy reach, such as fire extinguishers, water
and sand.
3.
Never weld or cut containers or pipes.
4.
Never weld or cut containers or pipes (even open) containing or which have contained substances that could
give rise to explosions or other dangerous reactions when exposed to humidity or heat sources.
1.4 Metal fume hazards
Welding fumes and gases may be hazardous if inhaled for long periods of time. Follow the
procedure below:
1.
Install a natural or forced-air ventilation system in the work area.
2.
Use a forced-air ventilation system when welding lead, beryllium, cadmium, zinc, zinc-coated or painted materials;
wear a protective mask.
3.
If the ventilation system is inadequate, use an air respirator.
4.
Beware of gas leaks. Shield gases such as argon are dense than air, and when used in confined spaces will
replace it.
5.
In the event of welding operations in confined places (e.g. inside boilers, trenches), the welder should be
externally accompanied by another person. Always observe accident-prevention procedures.
6.
Keep gas cylinders in a well-ventilated area.
7.
Close the main valve when gas is not in use.
8.
Do not perform welding operations near chlorinated hydrocarbon vapours produce by degreasing or painting;
the heat generated by arc rays can react to form phosgene, a highly toxic gas
9.
.Irritation of the eyes, nose and throat are symptoms of inadequate ventilation. Take immediate steps to improve
ventilation. Do not continue welding if symptoms persist
1.5 Positioning the power source
Position equipment in compliance with the following indications:
The operator must have unobstructed access to controls and equipment connections.