Toro 4045 Operator's Manual page 50

– Crystalline silica and other dust
If you will be drilling through or cutting concrete,
sand, or other substances that create dusts or fumes,
you need to ensure that you and all workers wear
breathing protection to protect your lungs from the
dust.
WARNING
Machining or handling stone, masonry,
concrete, metal, and other materials can
generate dust, mists, and fumes containing
chemicals, such as silica, known to cause
serious or fatal injury or illness, such as
respiratory disease, silicosis, cancer, birth
defects, or other reproductive harm.
◊ Control dust, mist, and fumes at the
source where possible. Water should be
used for dust suppression when feasible.
◊ Use good work practices and follow the
recommendations of the manufacturer or
suppliers, OSHA, and other occupational
and trade associations.
◊ When the hazards from inhalation cannot
be eliminated, the operator and any
bystanders should wear a respirator
approved by OSHA for the material being
handled.
WARNING
Silicosis Warning: Grinding, cutting, or
drilling stone, masonry, concrete, metal,
and other materials with silica in their
composition may give off dust or mist
containing crystalline silica. Silica is a
basic component of sand, quartz, brick,
clay, granite, and numerous other minerals
and rocks. Repeated and/or substantial
inhalation of airborne crystalline silica can
cause fatal respiratory diseases, including
silicosis. In addition, some other authorities
have listed respirable crystalline silica as a
substance known to cause cancer. When
cutting such materials, follow respiratory
precautions.
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