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Troubleshooting section at end of manual.
Page 7SKU 55525
Prevent accidental fires. Remove any combustible material from the
work area.
When possible, move the work to a location well away from combustible
materials. If relocation is not possible, protect the combustibles with a
cover made of fire resistant material.
Remove or make safe all combustible materials for a radius of 35 feet (10 meters)
around the work area. Use a fire resistant material to cover or block all open
doorways, windows, cracks, and other openings.
Enclose the work area with portable fire resistant screens. Protect combustible
walls, ceilings, floors, etc., from sparks and heat with fire resistant covers.
If working on a metal wall, ceiling, etc., prevent ignition of combustibles on the
other side by moving the combustibles to a safe location. If relocation of combus-
tibles is not possible, designate someone to serve as a fire watch, equipped with
a fire extinguisher, during the cutting process and for at least one half hour after
the cutting is completed.
Do not weld or cut on materials having a combustible coating or combustible in-
ternal structure, as in walls or ceilings, without an approved method for eliminating
the hazard.
Do not dispose of hot slag in containers holding combustible materials. Keep a
fire extinguisher nearby and know how to use it.
After spot welding, make a thorough examination for evidence of fire. Be aware
that easily-visible smoke or flame may not be present for some time after the fire
has started. Do not weld or cut in atmospheres containing dangerously reactive
or flammable gases, vapors, liquids, and dust. Provide adequate ventilation in
work areas to prevent accumulation of flammable gases, vapors, and dust. Do not
apply heat to a container that has held an unknown substance or a combustible
material whose contents, when heated, can produce flammable or explosive va-
pors. Clean and purge containers before applying heat. Vent closed containers,
including castings, before preheating, welding, or cutting.
Avoid overexposure to fumes and gases. Always keep your head out of the
fumes. Do not breathe the fumes. Use enough ventilation or exhaust, or both, to
keep fumes and gases from your breathing zone and general area.
Where ventilation is questionable, have a qualified technician take an air sam-
pling to determine the need for corrective measures. Use mechanical ventilation
to improve air quality. If engineering controls are not feasible, use an approved
respirator.
Work in a confined area only if it is well ventilated, or while wearing an air-sup-
plied respirator.
Follow OSHA guidelines for Permissible Exposure Limits (PEL’s) for various fumes
and gases.
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