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SAFETY

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E L E C T R I C S H O C K c a n kill.

3.a. The electrode and work (or ground) circuits are electrically “hot” when the welder is on. Do not touch these “hot” parts with your bare skin or wet clothing. Wear dry, hole-free

gloves to insulate hands.

3.b. Insulate yourself from work and ground using dry insulation. Make certain the insulation is large enough to cover your full area of physical contact with work and ground.

In addition to the normal safety precautions, if welding m u s t b e p e r f o r m e d u n d e r e l e c t r i c a l l y h a z a r d o u s conditions (in damp locations or while wearing wet clothing; on metal structures such as floors, gratings or scaffolds; when in cramped positions such as sitting, kneeling or lying, if there is a high risk of unavoidable or accidental contact with the workpiece or ground) use the following equipment:

Semiautomatic DC Constant Voltage (Wire) Welder.

DC Manual (Stick) Welder.

AC Welder with Reduced Voltage Control.

3.c. In semiautomatic or automatic wire welding, the electrode, electrode reel, welding head, nozzle or semiautomatic welding gun are also electrically “hot”.

3.d. Always be sure the work cable makes a good electrical connection with the metal being welded. The connection should be as close as possible to the area being welded.

3.e. Ground the work or metal to be welded to a good electrical (earth) ground.

3.f. Maintain the electrode holder, work clamp, welding cable and welding machine in good, safe operating condition. Replace damaged insulation.

3.g. Never dip the electrode in water for cooling.

3.h. Never simultaneously touch electrically “hot” parts of electrode holders connected to two welders because voltage between the two can be the total of the open circuit voltage of both welders.

3.i. When working above floor level, use a safety belt to protect yourself from a fall should you get a shock.

3.j. Also see Items 6.c. and 8.

ARC RAYS can burn.

4.a. Use a shield with the proper filter and cover plates to protect your eyes from sparks and the rays of the arc when welding or observing open arc welding. Headshield and filter lens should conform to ANSI Z87. I standards.

4.b. Use suitable clothing made from durable flame-resistant material to protect your skin and that of your helpers from the arc rays.

4.c. Protect other nearby personnel with suitable, non-flammable screening and/or warn them not to watch the arc nor expose themselves to the arc rays or to hot spatter or metal.

FUMES AND GASES can be dangerous.

5.a. Welding may produce fumes and gases hazardous to health. Avoid breathing these fumes and gases. When welding, keep your head out of the fume. Use enough ventilation and/or exhaust at the arc to keep

fumes and gases away from the breathing zone. When w e l d i n g w i t h e l e c t r o d e s w h i c h r e q u i r e s p e c i a l ve n t ilation s u ch as sta inless or hard facing (see instructions on container or MSDS) or on lead or cadmium plated steel and other metals or coatings which produce highly toxic fumes, keep exposure as low as possible and within applicable OSHA PEL and ACGIH TLV limits using local exhaust or mechanical ventilation. In confined spaces or in some circum- stanc es, outdoor s, a res p irator may be required. Additional precautions are also required when welding on galvanized steel.

5.b. The operation of welding fume control equipment is affected by various factors including proper use and positioning of the equipment, maintenance of the equipment and the spe- cific welding procedure and application involved. Worker exposure level should be checked upon installation and periodically thereafter to be certain it is within applicable OSHA PEL and ACGIH TLV limits.

5.c. Do not weld in locations near chlorinated hydrocarbon vapors coming from degreasing, cleaning or spraying operations. The heat and rays of the arc can react with solvent vapors to form phosgene, a highly toxic gas, and other irritating prod- ucts.

5.d. Shielding gases used for arc welding can displace air and cause injury or death. Always use enough ventilation, especially in confined areas, to insure breathing air is safe.

5.e. Read and understand the manufacturer’s instructions for this equipment and the consumables to be used, including the m a t e r i a l s a f e t y d a t a s h e e t ( M S D S ) a n d f o l l o w y o u r employer’s safety practices. MSDS forms are available from y o u r w e l d i n g d i s t r i b u t o r o r f r o m t h e m a n u f a c t u r e r .

5.f. Also see item 1.b.

Jan ‘09

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Lincoln Electric 500 manual E C T R I C S H O C K c a n kill

500 specifications

The Lincoln Electric 500 is a hallmark of innovation in arc welding technology, designed to cater to the rigorous demands of both industrial applications and serious hobbyist projects. This powerful machine is known for its reliability, versatility, and user-friendly design, making it an essential tool for professional welders and those looking to tackle various welding tasks with ease.

One of the standout features of the Lincoln Electric 500 is its robust power output. With a capability of up to 500 amps, it can handle a wide range of welding processes, including Stick, TIG, and MIG welding. This flexibility allows welders to use the machine for different types of metals, including steel, stainless steel, and aluminum, making it suitable for diverse applications from automotive to construction industries.

The machine's digital interface enhances user experience by providing precise control over the welding parameters. The intuitive display allows for easy adjustments of voltage and wire speed, ensuring optimal welding conditions are achieved. This feature is especially beneficial for beginners who may require additional support as they learn the intricacies of welding.

The Lincoln Electric 500 is also equipped with advanced technologies that enhance efficiency and welding quality. One such technology is the inverter system, which optimizes the power source for superior arc stability and improved penetration. This results in cleaner welds with minimal spatter, reducing the need for post-welding cleanup. Furthermore, the machine’s duty cycle is impressive, meaning it can operate for extended periods without overheating, a critical factor in high-production environments.

Another significant characteristic of the Lincoln Electric 500 is its portability. Weighing in at a manageable level and designed with built-in carrying handles, it’s easy to transport between job sites. This feature is particularly valuable for mobile welders who need to work in various locations.

Safety is paramount in welding operations, and the Lincoln Electric 500 integrates various safety features designed to protect the user. Overload protection and thermal overload indicators help prevent damage to the machine and injury to the operator, ensuring a reliable and safe working environment.

Overall, the Lincoln Electric 500 stands out not only for its performance but also for its thoughtful engineering that prioritizes user safety, comfort, and versatility. It is a dependable choice for anyone looking to produce high-quality welds while enjoying the benefits of advanced welding technology.