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1. Safety precautions
Welding power source
Observe the following instructions to prevent the
hazard.
（
1
）
Never use the welding power source for other than welding
purpose.
(e.g. Never attempt to use the welding power
source for pipe thawing.)
（
2
）
It is very important to comply with all instructions, safety
warnings, cautions and notes mentioned. Failure to do so can
result in serious injury or even death.
（
）
3
Work of driving source at the input side, selecting work site,
handling, storage and piping of high pressure gas, storage of
welded products and also disposal of waste should be
performed according to the operating instruction and
national, state and local codes and regulations.
（
）
4
Prevent any unauthorized personnel to enter in and around
the welding work area.
（
）
5
Pacemaker wearers should consult their doctor before going
near arc welding. Magnetic fields can affect pacemakers.
（
6
）
Only educated and/or skilled persons who well understand
this welding power source should install, operate, maintain
and repair the unit.
（
7
）
Only educated and/or skilled persons who well understand
the operating instruction of the unit and are capable of safe
handling should perform operation of the unit.
Against electric shock
Observe the following instructions to prevent
the hazard.
（
）
1
Do not handle the welding power source with torn or wet
gloves.
（
）
2
Wear safety harness in case of working above floor level.
（
3
）
Turn off all equipment when not in use.
（
4
）
Perform periodic checks without fail and repair or replace any
damaged parts before using the power source.
Ventilation and protective equipment
Oxygen deficit, fume and gas generated
during welding can be hazardous.
Installing shielding (curtain etc.)
Arc flash, flying spatter, slugs, and noise
generated during welding can damage your
eyes, skin and hearing.
（
1
）
Install a protective curtain around the welding manipulator
site to prevent the arc flash from entering the eyes of people
in the surrounding area.
（
2
）
When welding or monitoring welding, wear safety glasses
with sufficient light blocking performance or use a protective
mask designed for welding operation.
（
）
3
When welding or monitoring welding wear protective closes
designed for welding operation, such as leather gloves, leg
cover and leather apron, and also wear long-sleeve shirts.
（
）
4
Be sure to wear noise-proof protective equipment if the noise
level is high.
OM0707095JE06
WARNINGS
（
）
1
When conducting welding in the bottom of the tank, boiler or
hold as well as legally-defined sites, use a local exhauster
specified
by
the
(occupational safety and health regulation, rules on
preventing suffocation or etc.) or wear protective breathing
gear.
（
）
2
To prevent dust injury or poisoning by the fume generated
during welding, use a local exhauster specified by the
applicable law (occupational safety and health regulation,
rules on preventing injury by inhaled dust or etc.), or wear
protective breathing gear.
（
）
3
When conducting welding in a confined area, make sure to
provide sufficient ventilation or wear protective breathing gear
and have a trained supervisor observe the workers.
（
4
）
Do not conduct welding at a site where degreasing, cleaning
or spraying is performed. Conducting welding near the area
where any of these types of work is performed can generate
toxic gases.
（
）
5
When welding a coated steel plate, provide sufficient
ventilation or wear protective breathing gear. (Welding of
coated steel plates generates toxic fume and gas.)
Against fire, explosion or blowout
Observe the following cautions to prevent
fires explosion or blowout.
（
）
1
Remove any combustible materials at and near the work site
to prevent them from being exposed to the spatter. If they
cannot be relocated, cover them with a fireproofing cover.
（
2
）
Do not conduct welding near combustible gases.
（
）
3
Do not bring the hot base metal near combustible materials
immediately after welding.
（
）
4
When welding a ceiling, floor or wall, remove all flammables
including ones located in hidden places.
（
）
5
Properly connect cables and insulate connected parts.
Improper cable connections or touching of cables to any
electric current passage of the base metal, such as steel
beam, can cause fire.
（
6
）
Connect the base metal cable at a section closest to the
welding part.
（
7
）
Do not weld a sealed tank or a pipe that contains a gas.
（
）
8
Keep a fire extinguisher near the welding site for an
emergency.
CAUTIONS
Welding wire
Welding wire, especially wire tip part can
cause injury.
（
1
）
Do not perform inching operation or pull the torch switch with
your eyes, face or body close to the end of the welding torch -
wire extends out from the end of the welding torch and may
stick into the eye, face or body.
（
2
）
In case of using a torch cable with the resin liner, straighten
the torch cable and reduce the preset feed amount (current)
to a half or less before applying the wire inching.
（
3
）
Make sure to replace any damaged liner or cable with a new
one as use of damaged liner/cable may cause gas leak or
insulation deterioration.
Safety precautions
applicable
laws
and
regulations
9
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