Safety considerations, Electric arc welding equipment – MK Products Positioner #2 User Manual

Page 2

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CAUTION : READ BEFORE ATTEMPTING INSTALLATION,

OPERATION OR MAINTENANCE OF THIS EQUIPMENT

SAFETY CONSIDERATIONS

ELECTRIC ARC WELDING EQUIPMENT

1-1 INTRODUCTION

This equipment is intended for ultimate application by commercial/industrial users and for operation by
persons trained and experienced in the use and maintenance of welding equipment. Operation should
not be undertaken without adequate training in the use of such equipment. Training is available from many
public and private schools or similar facilities.

Safe practices in the installation, operation and maintenance of this equipment requires proper training
in the art, a careful study of the information provided with the equipment, and the use of common sense.
Rules for safe use are generally provided by suppliers of welding power sources, compressed gas
suppliers, and electrode suppliers. Careful compliance with these rules will promote safe use of this
equipment.

The following Safety Rules cover some of the more generally found situations. READ THEM CAREFULLY.
In case of any doubt, obtain qualified help before proceeding.

1-2 GENERAL PRECAUTIONS

A. Burn Prevention

ELECTRIC ARC WELDING PRODUCES HIGH INTENSITY HEAT AND ULTRAVIOLET RADIANT
ENERGY WHICH MAY CAUSE SERIOUS AND PERMANENT EYE DAMAGE AND WHICH MAY
DAMAGE ANY EXPOSED SKIN AREAS.

Wear helmet with safety goggles or glasses with side shields underneath, appropriate filter lenses or
plates (protected by clear cover glass). This is a must for welding or cutting (and chipping) to protect the
eyes from radiant energy and flying metal. Replace cover glass when broken, pitted, or spattered.

Medical first aid and eye treatment. First aid facilities and a qualified first aid person should be available
for each shift unless medical facilities are close by for immediate treatment of flash burns of the eyes and
skin burns.

Wear protective clothing - leather (or asbestos) gauntlet gloves, hat, and high safety-toe shoes. Button
shirt collar and pocket flaps, and wear cuffless trousers to avoid entry of sparks and slag.

Avoid oily or greasy clothing. A spark may ignite them.

Flammable hair preparations should not be used by persons intending to weld or cut.

Hot metal such as electrode stubs and work pieces should never be handled without gloves.

Ear plugs should be worn when working on overhead or in a confined space. A hard hat should be worn
when others work overhead.

B. Toxic Fume Prevention

Adequate ventilation. Severe discomfort, illness or death can result from fumes, vapors, heat, or oxygen
enrichment or depletion that welding (or cutting) may produce. Prevent them with adequate ventilation.
NEVER ventilate with oxygen.

Lead-, cadmium-, zinc-, mercury-, beryllium-bearing and similar materials, when welded or cut, may
produce harmful concentrations of toxic fumes. Adequate local exhaust ventilation must be used, or each
person in the area, as well as the operator, must wear an air-supplied respirator. For beryllium, both must
be used.

Metals coated with or containing materials that emit toxic fumes should not be heated unless coating is
removed form the work surface, the area is well ventilated, or the operator wears an air-supplied respirator.

Work in a confined space only while it is being ventilated and, if necessary, while wearing an air-supplied
respirator.

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