ESAB MIGMASTER 250 Instruction Manual Download Page 6

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FUMES AND GASES -- Fumes and
gases, can cause discomfort or harm,
particularly in confined spaces. Do
not breathe fumes and gases. Shield-
ing gases can cause asphyxiation.
Therefore:

1. Always provide adequate ventilation in the work area by

natural or mechanical means. Do not weld, cut, or gouge
on materials such as galvanized steel, stainless steel,
copper, zinc, lead, beryllium, or cadmium unless posi-
tive mechanical ventilation is provided. Do not breathe
fumes from these materials.

2. Do not operate near degreasing and spraying opera-

tions. The heat or arc rays can react with chlorinated
hydrocarbon vapors to form phosgene, a highly toxic
gas, and other irritant gases.

3. If you develop momentary eye, nose, or throat irritation

while operating, this is an indication that ventilation is
not adequate. Stop work and take necessary steps to
improve ventilation in the work area. Do not continue to
operate if physical discomfort persists.

4. Refer to ANSI/ASC Standard Z49.1 (see listing below)

for specific ventilation recommendations.

5. WARNING: This product, when used for welding or

cutting, produces fumes or gases which
contain chemicals known to the State of
California to cause birth defects and, in
some cases, cancer. (California Health &

Safety Code

25249.5 et seq.)

CYLINDER HANDLING -- Cylinders, if
mishandled, can rupture and violently
release gas. Sudden rupture of cylin-
der, valve, or relief device can injure or
kill. Therefore:

1. Use the proper gas for the process and use the proper

pressure reducing regulator designed to operate from
the compressed gas cylinder. Do not use adaptors.
Maintain hoses and fittings in good condition. Follow
manufacturer's operating instructions for mounting regu-
lator to a compressed gas cylinder.

2. Always secure cylinders in an upright position by chain

or strap to suitable hand trucks, undercarriages,
benches, walls, post, or racks. Never secure cylinders
to work tables or fixtures where they may become part
of an electrical circuit.

3. When not in use, keep cylinder valves closed. Have valve

protection cap in place if regulator is not connected.
Secure and move cylinders by using suitable hand
trucks. Avoid rough handling of cylinders.

4. Locate cylinders away from heat, sparks, and flames.

Never strike an arc on a cylinder.

5. For additional information, refer to CGA Standard P-1,

"Precautions for Safe Handling of Compressed Gases
in Cylinders", which is available from Compressed Gas
Association, 1235 Jefferson Davis Highway, Arlington,
VA 22202.

EQUIPMENT MAINTENANCE -- Faulty or
improperly maintained equipment can
cause injury or death. Therefore:

1. Always have qualified personnel perform the installa-

tion, troubleshooting, and maintenance work. Do not
perform any electrical work unless you are qualified to
perform such work.

2. Before performing any maintenance work inside a power

source, disconnect the power source from the incoming
electrical power.

3. Maintain cables, grounding wire, connections, power

cord, and power supply in safe working order. Do not
operate any equipment in faulty condition.

4. Do not abuse any equipment or accessories. Keep

equipment away from heat sources such as furnaces,
wet conditions such as water puddles, oil or grease,
corrosive atmospheres and inclement weather.

5. Keep all safety devices and cabinet covers in position

and in good repair.

6. Use equipment only for its intended purpose. Do not

modify it in any manner.

ADDITIONAL SAFETY INFORMATION -- For
more information on safe practices for electric
arc welding and cutting equipment, ask your
supplier for a copy of "Precautions and Safe
Practices for Arc Welding, Cutting and Goug-
ing", Form 52-529.

The following publications, which are available from the
American Welding Society, 550 N.W. LeJuene Road, Mi-
ami, FL 33126, are recommended to you:
1. ANSI/ASC Z49.1 - "Safety in Welding and Cutting"
2. AWS C5.1 - "Recommended Practices for Plasma Arc

Welding"

3. AWS C5.2 - "Recommended Practices for Plasma Arc

Cutting"

4. AWS C5.3 - "Recommended Practices for Air Carbon Arc

Gouging and Cutting"

5. AWS C5.5 - "Recommended Practices for Gas Tung-

sten Arc Welding“

6. AWS C5.6 - "Recommended Practices for Gas Metal Arc

Welding"“

7. AWS SP - "Safe Practices" - Reprint, Welding Handbook.
8. ANSI/AWS F4.1, "Recommended Safe Practices for

Welding and Cutting of Containers That Have Held
Hazardous Substances."

MEANING OF SYMBOLS - As used throughout
this manual: Means Attention! Be Alert! Your
safety is involved.