Additional Safety Warnings For Installation, Operation And Maintenance - Bernard CLEAN AIR SERIES Owner's Manual

situations use of a DC, constant voltage wire welder is
recommended. And, do not work alone!
• Disconnect input power or stop engine before installing
or servicing this equipment. Lockout/tagout input power
according to OSHA 29 CFR 1910.147 (see Safety
Standards).
• Properly install, ground, and operate this equipment
according to its Owner's Manual and national, state/
provincial and local codes.
• Always verify the supply ground − check and be
sure that input power cord ground wire is properly
connected to ground terminal in disconnect box or that
cord plug is connected to a properly grounded receptacle
outlet.
• When making input connections, attach proper
grounding conductor first and double-check connections.
• Keep cords dry, free of oil and grease, and protected
from hot metal and sparks.
• Frequently inspect input power cord for damage or bare
wiring. Replace cord immediately if damaged. Bare wiring
can kill.
• Turn off all equipment when not in use.
• Do not use worn, damaged, undersized, or poorly
spliced cables.
• Do not drape cables over your body.
• If earth grounding of the workpiece is required, ground
it directly with a separate cable.
• Do not touch electrode if you are in contact with the
work, ground, or another electrode from a different
machine.
• Do not touch electrode holders connected to two
welding machines at the same time since double
open circuit voltage will be present.
• Use only well-maintained equipment. Repair or replace
damaged parts at once. Maintain unit according to
manual.
• Wear a safety harness if working above floor level.
• Keep all panels and covers securely in place.
• Clamp work cable with good metal-to-metal contact to
workpiece or worktable as near the weld as practical.
• Insulate work clamp when not connected to workpiece
to prevent contact with any metal object.
• Do not connect more than one electrode or work cable
to any single weld output terminal. Disconnect cable for
process when not in use.
CYLINDERS CAN EXPLODE if damaged.
Compressed gas cylinders contain gas
under high pressure. If damaged, a
cylinder can explode. Since gas cylinders
are normally part of the welding process, be sure to treat
them carefully.
• Protect compressed gas cylinders from excessive heat,
mechanical shocks, physical damage, slag, open flames,
sparks, and arcs.
• Install cylinders in an upright position by securing to a
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stationary support or cylinder rack to prevent falling or
tipping.
• Keep cylinders away from any welding, cutting, or other
electrical circuits.
• Never drape a welding or cutting torch over a gas cylinder.
• Never allow a welding electrode or cutting torch to touch any
cylinder.
• Never weld on a pressurized cylinder − explosion will result.
• Use only correct compressed gas cylinders, regulators,
hoses, and fittings designed for the specific application;
maintain them and associated parts in good condition.
• Turn face away from valve outlet when opening cylinder
valve. Do not stand in front of or behind the regulator when
opening the valve.
• Keep protective cap in place over valve except when cylinder
is in use or connected for use.
• Use the right equipment, correct procedures, and sufficient
number of persons to lift and move cylinders.
• Read and follow instructions on compressed gas cylinders,
associated equipment, and Compressed Gas Association
(CGA) publication P-1 listed in Safety Standards.
1-3 Additional Safety Warnings for
Installation, Operation and Maintenance
HOT PARTS can burn.
• Do not touch hot parts bare handed.
• Allow cooling period before working
on equipment.
• To handle hot parts, use proper
tools and/or wear heavy, insulated
welding gloves and clothing to prevent
burns.
FLYING METAL or DIRT can injure or
kill.
• Welding, cutting, chipping, wire
brushing, and grinding cause sparks
and flying metal. As welds cool, they
can throw off slag.
• Wear approved safety glasses with side shields even
under your welding helmet.
BUILDUP OF GAS can injure or kill.
• Shut off compressed gas supply when
not in use.
• Always ventilate confined spaces or
use approved air-supplied respirator.
OVERUSE CAN CAUSE OVERHEATING
• Allow cooling period; follow rated duty cycle.
• Reduce current or reduce duty cycle before
starting to weld again.
• Do not block or filter airflow to unit.