Lincoln Electric PWF-2 Operator's Manual page 6

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6.a. Use only compressed gas cylinders containing the correct shielding gas for the process
used and properly operating regulators designed for the gas and pressure used. All hoses,
fittings, etc. should be suitable for the application and maintained in good condition.
6.b. Always keep cylinders in an upright position securely chained to an undercarriage or fixed
support.
6.c. Cylinders should be located:

Away from areas where they may be struck or subjected to physical damage.
 A safe distance from arc welding or cutting operations and any other source of heat,
sparks, or flame.
6.d. Never allow the electrode, electrode holder or any other electrically "hot" parts to touch a
cylinder.
6.e. Keep your head and face away from the cylinder valve outlet when opening the cylinder
valve.
6.f. If available, valve protection caps should always be in place if available and hand tight
except when the cylinder is in use or connected for use.
6.g. Read and follow the instructions on compressed gas cylinders and associated equipment.
7.a. Turn off input power using the disconnect switch at the fuse box before working on the
equipment.
7.b. Install equipment in accordance with the local codes and the manufacturer's
recommendations.
7.c. Ground the equipment in accordance with the local codes and the manufacturer's
recommendations.
SAFETY
CYLINDER may explode if damaged.
FOR ELECTRICALLY Powered Equipment.
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