MAGNATECH Pipemaster 515, Инструкция по эксплуатации и техническому обслуживанию, Страница: 18 / 101

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3.5 Toxic Fume Prevention
Breathing the fumes created during welding or cutting can cause illness or death. If adequate
ventilation is not provided. Provided ventilation in accordance with ANSI Standard Z49.1.
Some fume sources are:
3.5.1 Weldments
Metals containing lead, cadmium, zinc, mercury and beryllium can produce harmful
toxic fumes when welded or cut. Adequate local exhaust ventilation must be used for
the operator and persons in the area.
3.5.2 Coated Weldments
Remove coatings that emit toxic fumes when heated or use exhaust ventilation and/or
an air supplied respirator.
3.5.3 Vessels That Have Contained Toxic Materials
The ultraviolet radiant energy of the arc can also decompose chlorinated solvents
such as trichloroethylene and perchloroethylene vapors to form the highly toxic gas -
PHOSGENE. Do not weld or cut unless such containers have been thoroughly
cleaned following AWS Standard A6.0. Keep all solvents well away from the arc
radiation.
3.5.4 Welding Area
Do not weld in locations close to chlorinated vapors coming from degreasing, cleaning
or spraying operations. The heat and rays from the arc react with the vapors to form
highly toxic PHOSGENE. Work in a confined space only if it is being adequately
ventilated, and if ventilation is not adequate, wear an air-supplied respirator (see ANSI
2.37).
3.6 Compressed Gas Cylinder Handling
Follow precautions below and those outlined in CGA Standard P-1, Precautions for Safe
Handling of Compressed Gases in Cylinders.
3.6.1 Cylinders
Handle carefully to prevent damage. Keep away from welding cables or other
electrical circuits. Use only cylinders with name of gas marked on them; DO NOT rely
on color identification. Close valves on empties and return promptly. Secure
cylinders so they cannot be knocked over. Keep temperature below 130 degrees F.
3.6.2 Pressure Regulators
Use the correct regulator for the gas and cylinder being used. Remove any
suspected faulty regulator and return to manufacturer's service center for repair.
3.7 Equipment Warning Labels
Inspect all precautionary labels on the equipment.
3.8 Alterations To The Power Supply
Do not make alterations or modifications to the power supply without first getting permission
from the manufacturer.
Immediately replace any components that are not in perfect condition.