FLYING SPARKS can cause injury.
D Wear a face shield to protect eyes and face.
D Shape tungsten electrode only on grinder with proper guards in a safe location wearing proper face, hand, and body protection.
DSparks can cause fires — keep flammables away.
OVERUSE can cause OVERHEATING.
DAllow cooling period; follow rated duty cycle.
DReduce current or reduce duty cycle before starting to weld again.
DDo not block or filter airflow to unit.
STATIC (ESD) can damage PC boards.
DPut on grounded wrist strap BEFORE handling
boards or parts.
D Use proper
TILTING OF TRAILER can cause injury.
D Use tongue jack or blocks to support weight.
DProperly install welding generator onto trailer according to instructions supplied with trailer.
READ INSTRUCTIONS.
D Use only genuine MILLER/Hobart replacement parts.
DPerform engine and air compressor (if applica- ble) maintenance and service according to this manual and the engine/air compressor (if appli- cable) manuals.
H.F. RADIATION can cause interference.
D
DHave only qualified persons familiar with electronic equipment perform this installation.
DThe user is responsible for having a qualified electrician promptly correct any interference problem resulting from the installation.
DIf notified by the FCC about interference, stop using the equipment at once.
DHave the installation regularly checked and maintained.
DKeep
ARC WELDING can cause interference.
DElectromagnetic energy can interfere with sensitive electronic equipment such as micro- processors, computers, and
DBe sure all equipment in the welding area is electromagnetically compatible.
DTo reduce possible interference, keep weld cables as short as possible, close together, and down low, such as on the floor.
DLocate welding operation 100 meters from any sensitive elec- tronic equipment.
DBe sure this welding machine is installed and grounded according to this manual.
DIf interference still occurs, the user must take extra measures such as moving the welding machine, using shielded cables, using line filters, or shielding the work area.
1-6. Principal Safety Standards
Safety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1, from American Welding Society, 550 N.W. LeJeune Rd, Miami FL 33126 (phone:
Recommended Safe Practices for the Preparation for Welding and Cut- ting of Containers and Piping, American Welding Society Standard AWS F4.1, from American Welding Society, 550 N.W. LeJeune Rd, Mi- ami, FL 33126 (phone:
National Electrical Code, NFPA Standard 70, from National Fire Protec- tion Association, P.O. Box 9101, 1 Battery March Park, Quincy, MA
Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet
Code for Safety in Welding and Cutting, CSA Standard W117.2, from Canadian Standards Association, Standards Sales, 178 Rexdale Bou-
levard, Rexdale, Ontario, Canada M9W 1R3 (phone:
in Toronto
Practice For Occupational And Educational Eye And Face Protection, ANSI Standard Z87.1, from American National Standards Institute, 11 West 42nd Street, New York, NY
Standard for Fire Prevention During Welding, Cutting, and Other Hot Work, NFPA Standard 51B, from National Fire Protection Association, P.O. Box 9101, 1 Battery March Park, Quincy, MA
OSHA, Occupational Safety and Health Standards for General Indus- try, Title 29, Code of Federal Regulations (CFR), Part 1910, Subpart Q, and Part 1926, Subpart J, from U.S. Government Printing Office, Super- intendent of Documents, P.O. Box 371954, Pittsburgh, PA 15250 (there are 10 Regional
1-7. EMF Information
Considerations About Welding And The Effects Of Low Frequency Electric And Magnetic Fields
Welding current, as it flows through welding cables, will cause electro- magnetic fields. There has been and still is some concern about such fields. However, after examining more than 500 studies spanning 17 years of research, a special blue ribbon committee of the National Research Council concluded that: “The body of evidence, in the committee’s judgment, has not demonstrated that exposure to power- frequency electric and magnetic fields is a
OM-499 Page 4
To reduce magnetic fields in the workplace, use the following procedures:
1.Keep cables close together by twisting or taping them.
2.Arrange cables to one side and away from the operator.
3.Do not coil or drape cables around your body.
4.Keep welding power source and cables as far away from operator as practical.
5.Connect work clamp to workpiece as close to the weld as possible.
About Pacemakers:
Pacemaker wearers consult your doctor first. If cleared by your doctor, then following the above procedures is recommended.