Lincoln Electric K1780-1 manual For Electrically, Iii

iii	WELDING SPARKS canSAFETY		CYLINDER may explode iii
	cause fire or explosion.		if damaged.
	6.a. Remove fire hazards from the welding area.
	If this is not possible, cover them to prevent		7.a. Use only compressed gas cylinders
	the welding sparks from starting a fire.		containing the correct shielding gas for the
	Remember that welding sparks and hot		process used and properly operating
	materials from welding can easily go through small cracks		regulators designed for the gas and
	and openings to adjacent areas. Avoid welding near		pressure used. All hoses, fittings, etc. should be suitable for
	hydraulic lines. Have a fire extinguisher readily available.		the application and maintained in good condition.
6.b. Where compressed gases are to be used at the job site,		7.b. Always keep cylinders in an upright position securely
	special precautions should be used to prevent hazardous		chained to an undercarriage or fixed support.
	situations. Refer to “Safety in Welding and Cutting” (ANSI	7.c. Cylinders should be located:
	Standard Z49.1) and the operating information for the		• Away from areas where they may be struck or subjected to
	equipment being used.		physical damage.
6.c. When not welding, make certain no part of the electrode			• A safe distance from arc welding or cutting operations and
	circuit is touching the work or ground. Accidental contact
	can cause overheating and create a fire hazard.		any other source of heat, sparks, or flame.
6.d. Do not heat, cut or weld tanks, drums or containers until the		7.d. Never allow the electrode, electrode holder or any other
	proper steps have been taken to insure that such procedures		electrically “hot” parts to touch a cylinder.
	will not cause flammable or toxic vapors from substances	7.e. Keep your head and face away from the cylinder valve outlet
	inside. They can cause an explosion even though they have
	been “cleaned”. For information, purchase “Recommended		when opening the cylinder valve.
	Safe Practices for the Preparation for Welding and Cutting of	7.f.	Valve protection caps should always be in place and hand
	Containers and Piping That Have Held Hazardous
	Substances”, AWS F4.1 from the American Welding Society		tight except when the cylinder is in use or connected for
	(see address above).		use.
6.e. Vent hollow castings or containers before heating, cutting or		7.g. Read and follow the instructions on compressed gas
			cylinders, associated equipment, and CGA publication P-l,
6.f.	welding. They may explode.		“Precautions for Safe Handling of Compressed Gases in
	Sparks and spatter are thrown from the welding arc. Wear oil		Cylinders,” available from the Compressed Gas Association
	free protective garments such as leather gloves, heavy shirt,		1235 Jefferson Davis Highway, Arlington, VA 22202.
	cuffless trousers, high shoes and a cap over your hair. Wear		FOR ELECTRICALLY
	ear plugs when welding out of position or in confined places.
	Always wear safety glasses with side shields when in a
	welding area.		powered equipment.
6.g. Connect the work cable to the work as close to the welding			8.a. Turn off input power using the disconnect
	area as practical. Work cables connected to the building
	framework or other locations away from the welding area		switch at the fuse box before working on
	increase the possibility of the welding current passing		the equipment.
	through lifting chains, crane cables or other alternate cir-	8.b. Install equipment in accordance with the U.S. National
	cuits. This can create fire hazards or overheat lifting chains		Electrical Code, all local codes and the manufacturerʼs
	or cables until they fail.		recommendations.
6.h. Also see item 1.c.		8.c. Ground the equipment in accordance with the U.S. National
6.I.	Read and folllow NFPA 51B “ Standard for Fire Prevention		Electrical Code and the manufacturerʼs recommendations.
	During Welding, Cutting and Other Hot Work”, available
	from NFPA, 1 Batterymarch Park,PO box 9101, Quincy, Ma	Jan 07
	022690-9101.
6.j. Do not use a welding power source for pipe thawing.

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