ESAB MIGMASTER 250 Bedienerhandbuch PDF herunterladen (Seite 5)

WARNING:

These Safety Precautions are for

your protection. They summarize precautionary

information from the references listed in Addi-

tional Safety Information section. Before per-

forming any installation or operating procedures,

be sure to read and follow the safety precautions listed below

as well as all other manuals, material safety data sheets,

labels, etc. Failure to observe Safety Precautions can result

in injury or death.

PROTECT YOURSELF AND OTHERS

Some welding, cutting, and gouging pro-

cesses are noisy and require ear protec-

tion. The arc, like the sun, emits ultra-

violet (UV) and other radiation and can injure skin and

eyes. Hot metal can cause burns. Training in the proper

use of the processes and equipment is essential to

prevent accidents. Therefore:

1. Always wear safety glasses with side shields in any work

area, even if welding helmets, face shields, and goggles

are also required.

2. Use a face shield fitted with the correct filter and cover

plates to protect your eyes, face, neck, and ears from

sparks and rays of the arc when operating or observing

operations. Warn bystanders not to watch the arc and not

to expose themselves to the rays of the electric-arc or hot

metal.

3. Wear flameproof gauntlet type gloves, heavy long-sleeve

shirt, cuffless trousers, high-topped shoes, and a welding

helmet or cap for hair protection, to protect against arc rays

and hot sparks or hot metal. A flameproof apron may also

be desirable as protection against radiated heat and sparks.

4. Hot sparks or metal can lodge in rolled up sleeves, trouser

cuffs, or pockets. Sleeves and collars should be kept

buttoned, and open pockets eliminated from the front of

clothing

5. Protect other personnel from arc rays and hot sparks with

a suitable non-flammable partition or curtains.

6. Use goggles over safety glasses when chipping slag or

grinding. Chipped slag may be hot and can fly far. Bystand-

ers should also wear goggles over safety glasses.

FIRES AND EXPLOSIONS -- Heat from

flames and arcs can start fires. Hot slag

or sparks can also cause fires and explo-

sions. Therefore:

1. Remove all combustible materials well away from the work

area or cover the materials with a protective non-flam-

mable covering. Combustible materials include wood,

cloth, sawdust, liquid and gas fuels, solvents, paints and

coatings, paper, etc.

2. Hot sparks or hot metal can fall through cracks or crevices

in floors or wall openings and cause a hidden smoldering

fire or fires on the floor below. Make certain that such

openings are protected from hot sparks and metal.“

3. Do not weld, cut or perform other hot work until the

workpiece has been completely cleaned so that there are

no substances on the workpiece which might produce

flammable or toxic vapors. Do not do hot work on closed

containers. They may explode.

4. Have fire extinguishing equipment handy for instant use,

such as a garden hose, water pail, sand bucket, or portable

fire extinguisher. Be sure you are trained in its use.

5. Do not use equipment beyond its ratings. For example,

overloaded welding cable can overheat and create a fire

hazard.

6. After completing operations, inspect the work area to

make certain there are no hot sparks or hot metal which

could cause a later fire. Use fire watchers when necessary.

7. For additional information, refer to NFPA Standard 51B,

"Fire Prevention in Use of Cutting and Welding Pro-

cesses", available from the National Fire Protection Asso-

ciation, Batterymarch Park, Quincy, MA 02269.

ELECTRICAL SHOCK -- Contact with live

electrical parts and ground can cause

severe injury or death. DO NOT use AC

welding current in damp areas, if move-

ment is confined, or if there is danger of

falling.

1. Be sure the power source frame (chassis) is connected

to the ground system of the input power.

2. Connect the workpiece to a good electrical ground.

3. Connect the work cable to the workpiece. A poor or

missing connection can expose you or others to a fatal

shock.

4. Use well-maintained equipment. Replace worn or dam-

aged cables.

5. Keep everything dry, including clothing, work area, cables,

torch/electrode holder, and power source.

6. Make sure that all parts of your body are insulated from

work

and from ground.

7. Do not stand directly on metal or the earth while working

in tight quarters or a damp area; stand on dry boards or

an insulating platform and wear rubber-soled shoes.

8. Put on dry, hole-free gloves before turning on the power.

9. Turn off the power before removing your gloves.

10. Refer to ANSI/ASC Standard Z49.1 (listed on next page)

for specific grounding recommendations. Do not mistake

the work lead for a ground cable.

ELECTRIC AND MAGNETIC FIELDS —

May be dangerous. Electric current flow-

ing through any conductor causes local-

ized Electric and Magnetic Fields (EMF).

Welding and cutting current creates EMF

around welding cables and welding ma-

chines. Therefore:

1. Welders having pacemakers should consult their physi-

cian before welding. EMF may interfere with some pace-

makers.

2. Exposure to EMF may have other health effects which are

unknown.

3. Welders should use the following procedures to minimize

exposure to EMF:

A. Route the electrode and work cables together. Secure

them with tape when possible.

B. Never coil the torch or work cable around your body.

C. Do not place your body between the torch and work

cables. Route cables on the same side of your body.

D. Connect the work cable to the workpiece as close as

possible to the area being welded.

E. Keep welding power source and cables as far away

from your body as possible.

SECTION 1 SAFETY PRECAUTIONS

1 2 3 4 5 6 7 8 9 10 ... 59 60

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