Smith Little Torch Owner's Manual page 5

LIGHT RAYS can burn eyes and skin.
Light rays from the welding and cutting process produce intense visible
and invisible (ultraviolet and infrared) rays that can burn eyes and skin.
Sparks fly off from the weld.
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Wear approved face protection fitted with a proper shade of filter
lenses to protect your face and eyes from light rays and sparks
when welding, cutting, or watching (see ANSI Z49.1 and Z87.1
listed in Safety Standards).
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Wear welding goggles, or wear welding helmet/welding face-
shield over approved goggles/safety glasses with side shields.
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Use protective screens or barriers to protect others from flash,
glare and sparks; warn others not to watch the welding or cutting.
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Wear protective clothing made from durable, flame-resistant
material (leather, heavy cotton, or wool) and foot protection.
WELDING AND CUTTING can cause
fire or explosion.
Welding and cutting on closed containers, such as tanks, drums, or
pipes, can cause them to blow up. Sparks can fly off from the welding or
cutting operations. The flying sparks, hot workpiece, and hot equipment
can cause fires and burns. Check and be sure the area is safe before
doing any welding or cutting.
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Do not use this welding and cutting equipment with gases and
pressures other than those for which it is intended. Oxygen is not
flammable; however, the presence of pure oxygen will drastically
increase the speed and force with which burning takes place. Oxy-
gen must never be allowed to contact grease, oil, or other petro-
leum-based substances; therefore, be sure there is no oil or grease
on the regulator, cylinder, valves, or equipment. Do not use petro-
leum-based pipe sealants. Do not use or store near excessive heat
(above 125° F/51.5° C) or open flame. Do not refer to oxygen as air
and do not use oxygen as a substitute for compressed air. Do not
use oxygen to clean clothes or work area, for ventilation, or to oper-
ate pneumatic tools. Open oxygen cylinder valves slowly. Be sure
regulator adjusting handle is in the full out (off) position before
opening oxygen cylinder valve.
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Inspect all equipment before use. Do not use damaged, defective,
or improperly adjusted welding and cutting equipment. Make sure
levers and valves work properly, threads on equipment are clean
(no grease or oil) and not deformed, gauges are intact and easy to
read, regulator is clean and free of oil or dirt, and fittings are prop-
erly sized for the cylinder. Make sure hoses are clean (no grease or
oil) and ferrules are properly installed so the fitting does not slip in-
side the hose. Be sure all connections are tight.
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It is recommended that a reverse-flow check valve or a flashback ar-
restor be installed between the torch handle and the regulator. Check
valves do not prevent the propagation of a flame upstream (flash-
back) but are designed to prevent the unintentional backflow of gases
into the cutting attachment, torch, hoses, or regulator which could
cause an explosion or fire. A flashback arrestor can be installed on the
torch handle instead of a check valve. Miller flashback arrestors have
a reverse flow check valve and prevent the propagation of a flame up-
stream. If a flashback arrestor is installed, a check valve is not neces-
sary. Using a flashback arrestor and a check valve may reduce gas
flow and affect torch operation. To help prevent the reverse flow of
gases, be sure the cylinders contain enough gas to complete the
work.
OM-263 357 Page 3