Lincoln Electric SVM194-A service manual Cylinder may explode, For Electrically, Iii

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

Refer to http://www.lincolnelectric.com/safety for additional safety information.

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