Tweco PC250 - Manual (Page 6)

FUMES, GASSES AND VAPORS CAN CAUSE DISCOMFORT, ILLNESS AND DEATH! Gases
and fumes produced during the plasma cutting process can be dangerous and hazardous to your health.
Keep all fumes and gases from the breathing area. Keep your head out of the welding fume plume. Use
an air-supplied respirator if ventilation is not adequate to remove all fumes and gases. The kinds of
fumes and gases from the plasma arc depend on the kind of metal being used, coatings on the metal,
and the different processes. You must be very careful when cutting or
welding any metals which may contain one or more of the following: Antimony Chromium Mercury
Arsenic Cobalt Nickel Barium Copper Selenium Beryllium Lead Silver Cadmium Manganese
Vanadium For information on how to test for fumes and gases in your workplace, refer to item 1 in the
Publications section in this manual. Use special equipment, such as water or down draft cutting tables,
to capture fumes and gases. Do not use the plasma torch in an area where combustible or explosive
gases or materials are located. Phosgene, a toxic gas, is generated from the vapors of chlorinated
solvents and cleansers. Remove all sources of these vapors.
Noise can cause permanent hearing loss. Plasma arc processes can cause noise levels to exceed safe
limits. You must protect your ears from loud noise to prevent permanent loss of hearing. To protect your
hearing from loud noise, wear protective ear plugs and/or ear muffs. Protect others in the workplace.
Noise levels should be measured to be sure the decibels (sound) do not exceed safe levels.
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