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MCM-146 Welding Safely

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MCM-146 Welding Safely 2.d. All welders should use the following procedures in order to WARNING minimie exposure to EMF fields from the welding circuit: 5.c. Shielding gases used for arc welding can displace air and cause inury or death. Always use enough ventilation, CALIFORNIA PROPOSITION 65 WARNINGS 2.d.1. Route the electrode and work cables together - Secure especially in confined areas, to insure breathing air is safe. ARC WELDING SAFELY them with tape when possible. iesel engine exhaust and some of its constituents 5.d. Read and understand the manufacturers instructions for this are known to the State of California to cause can- 2.d.2. Never coil the electrode lead around your body. euipment and the consumables to be used, including the cer, birth defects, and other reproductive harm. material safety data sheet MSS and follow your 2.d.3. o not place your body between the electrode and employers safety practices. MSS forms are available from Welders shall follow safe welding practices Employers shall provide safe working conditions and safety training. he Above For iesel Engines work cables. If the electrode cable is on your right your welding distributor or from the manufacturer. side, the work cable should also be on your right side. As in most trades, welders are exposed to certain haards. aards exist with all arc welding processes. Welding is safe when 5.e. Also see item 1.b. safe practices are followed. he engine e xhaust from this product contains 2.d.4. Connect the work cable to the workpiece as close as his information is a brief outline of precautionary measures that will help avoid the haards of arc welding. chemicals known to the State of California to cause possible to the area being welded. Read and understand the manufacturers instructions and your employers safe practices. cancer, birth defects, or other reproductive harm. our Safety irector or Supervisor should be consulted when specific uestions arise. 2.d.5. o not work next to welding power source. WELDING SPARKS can he Above For asoline Engines cause fire or explosion. .a. Remove fire haards from the welding area. If this is not possible, cover them to prevent ARC WELDING CAN BE HAZARDOUS. PROTECT YOUR- ELECTRIC SHOCK can kill. the welding sparks from starting a fire. SELF AND OTHERS FROM POSSIBLE SERIOUS INJURY OR 3.a. he electrode and work or ground circuits Remember that welding sparks and hot DEATH. KEEP CHILDREN AWAY. PACEMAKER WEARERS are electrically “hot” when the welder is on. materials from welding can easily go through small cracks WARNING: SHOULD CONSULT WITH THEIR DOCTOR BEFORE OPER- o not touch these “hot” parts with your bare and openings to adacent areas. Avoid welding near hydraulic lines. ave a fire extinguisher readily available. ATING. skin or wet clothing. Wear dry, hole-free PROTECT YOURSELF AND OTHERS. gloves to insulate hands. READ AND UNDERSTAND THIS . b. Where compressed gases are to be used at the ob site, FMES AN ASES ARC RAS can Read and understand the following safety highlights. 3.b. Insulate yourself from work and ground using dry insulation. special precautions should be used to prevent haardous INFORMATION. ELECRIC SOC can be dangerous to inures eyes and For additional safety information, it is strongly recom- Make certain the insulation is large enough to cover your full situations. Refer to “Safety in Welding and Cutting” ANSI can kill. Standard Z49.1 and the operating information for the your health. burn skin. area of physical contact with work and ground. mended that you purchase a copy of “Safety in euipment being used. Welding & Cutting - ANSI Standard Z49.1” from the In addition to the normal safety precautions, if welding .c. When not welding, make certain no part of the electrode American Welding Society, P.O. Box 351040, Miami, must be performed under electrically hazardous Florida 33135 or CSA Standard W117.2-1974. A Free circuit is touching the work or ground. Accidental contact can conditions (in damp locations or while wearing wet cause overheating and create a fire haard. copy of “Arc Welding Safety” booklet E205 is available clothing; on metal structures such as floors, gratings or from the Lincoln Electric Company, 22801 St. Clair scaffolds; when in cramped positions such as sitting, .d. o not heat, cut or weld tanks, drums or containers until the Avenue, Cleveland, Ohio 44117-1199. kneeling or lying, if there is a high risk of unavoidable or proper steps have been taken to insure that such procedures accidental contact with the workpiece or ground) use will not cause flammable or toxic vapors from substances fumes and the following equipment: inside. hey can cause an explosion even though they have YES YES BE SURE THAT ALL INSTALLATION, OPERATION, • Semiautomatic DC Constant Voltage (Wire) Welder. been “cleaned”. For information, purchase “Recommended gases can be MAINTENANCE AND REPAIR PROCEDURES ARE • DC Manual (Stick) Welder. Safe Practices for the Preparation for Welding and Cutting of USE ENOUGH VENTILATION or exhaust at the PERFORMED ONLY BY QUALIFIED INDIVIDUALS. • AC Welder with Reduced Voltage Control. Containers and Piping hat ave eld aardous Substances”, AWS F4.1 from the American Welding Society arc, or both, to keep the fumes and gases from dangerous to your breathing one and the general area. 3.c. In semiautomatic or automatic wire welding, the electrode, see address above. electrode reel, welding head, nole or semiautomatic FOR ENGINE welding gun are also electrically “hot”. .e. ent hollow castings or containers before heating, cutting or your health IN A LARGE ROOM OR OUTDOORS, natural welding. hey may explode. ventilation may be adeuate if you keep your powered equipment. 3.d. Always be sure the work cable makes a good electrical head out of the fumes See below. 1.a. urn the engine off before troubleshooting and maintenance KEEP your head out of the fumes. connection with the metal being welded. he connection .f. Sparks and spatter are thrown from the welding arc. Wear oil work unless the maintenance work reuires it to be running. should be as close as possible to the area being welded. free protective garments such as leather gloves, heavy shirt, DON’T get too close to the arc. se corrective USE NATURAL DRAFTS or fans to keep the ____________________________________________________ cuffless trousers, high shoes and a cap over your hair. Wear lenses if necessary to stay a reasonable fumes away from your face. 1.b. Operate engines in open, well-ventilated 3.e. round the work or metal to be welded to a good electrical ear plugs when welding out of position or in confined places. distance away from the arc. areas or vent the engine exhaust fumes Always wear safety glasses with side shields when in a If you develop unusual symptoms, see your earth ground. outdoors. welding area. NO READ and obey the warning label that supervisor. Perhaps the welding atmosphere and NO ventilation system should be checked. 3.f. Maintain the electrode holder, work clamp, welding cable and appears on all containers of welding materials. .g. Connect the work cable to the work as close to the welding welding machine in good, safe operating condition. Replace area as practical. Work cables connected to the building damaged insulation. framework or other locations away from the welding area ____________________________________________________ increase the possibility of the welding current passing 1.c. o not add the fuel near an open flame weld - 3.g. Never dip the electrode in water for cooling. through lifting chains, crane cables or other alternate circuits. ing arc or when the engine is running. Stop his can create fire haards or overheat lifting chains or the engine and allow it to cool before refuel- 3.h. Never simultaneously touch electrically “hot” parts of cables until they fail. ing to prevent spilled fuel from vaporiing on electrode holders connected to two welders because voltage contact with hot engine parts and igniting. o some ventilation O NO OC LIE ELECRICAL PARS between the two can be the total of the open circuit voltage .h. Also see item 1.c. not spill fuel when filling tank. If fuel is spilled, of both welders. wipe it up and do not start engine until fumes suggestions electric shock can kill have been eliminated. 3.i. When working above floor level, use a safety belt to protect ____________________________________________________ yourself from a fall should you get a shock. PROTECT adeuate ventilation is available when welding BE SURE you are insulated from live electrical parts. 1.d. eep all euipment safety guards, covers and devices in posi- CYLINDER may explode in confined areas or where there are barriers to air movement. BE SRE euipment is adeuate for the ob. tion and in good repair.eep hands, hair, clothing and tools 3.. Also see Items .c. and 8. if damaged. BE SRE euipment is installed according to prevailing codes. away from -belts, gears, fans and all other moving parts 7.a. se only c ompressed gas cylinders SMOKE EXTRACTOR welding gun. For semiautomatic BE SRE damaged parts are repaired or replaced. when starting, operating or repairing euipment. BE SURE welding machine is properly grounded. ____________________________________________________ containing the correct shielding gas for the welding processes, euipment exists for exhausting the process used and properly operating BE SURE gloves have no holes. fumes at the arc. 1.e. In some cases it may be necessary to remove safety regulators designed for the gas and BE SURE to stay dry do not weld when you are wet. USE NATURAL VENTILATION guards to perform reuired maintenance. Remove pressure used. All hoses, fittings, etc. should be suitable for BE SRE euipment is turned OFF when not in use.
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