Section 1: safety instructions and warnings, 01 arc welding hazards, Section 1 – Tweco 500SP PowerMaster Automation User Manual

Page 7: Safety instructions and warnings -1, 01 arc welding hazards -1

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1-1

March 16, 2007

POWERMASTER 400SP, 500SP AUTOMATION

1.01

Arc Welding Hazards

WARNING

ELECTRIC SHOCK can kill.

Touching live electrical parts can cause fatal shocks
or severe burns. The electrode and work circuit is
electrically live whenever the output is on. The input
power circuit and machine internal circuits are also
live when power is on. In semiautomatic or
automatic wire welding, the wire, wire reel, drive
roll housing, and all metal parts touching the
welding wire are electrically live. Incorrectly installed
or improperly grounded equipment is a hazard.

1. Do not touch live electrical parts.

2. Wear dry, hole-free insulating gloves and body protection.

3. Insulate yourself from work and ground using dry insulating

mats or covers.

4. Disconnect input power or stop engine before installing or

servicing this equipment. Lock input power disconnect switch
open, or remove line fuses so power cannot be turned on
accidentally.

5. Properly install and ground this equipment according to its

Owner’s Manual and national, state, and local codes.

6. Turn off all equipment when not in use. Disconnect power to

equipment if it will be left unattended or out of service.

7. Use fully insulated electrode holders. Never dip holder in water

to cool it or lay it down on the ground or the work surface.
Do not touch holders connected to two welding machines at
the same time or touch other people with the holder or
electrode.

8. Do not use worn, damaged, undersized, or poorly spliced

cables.

9. Do not wrap cables around your body.

10. Ground the workpiece to a good electrical (earth) ground.

11. Do not touch electrode while in contact with the work

(ground) circuit.

12. Use only well-maintained equipment. Repair or replace

damaged parts at once.

13. In confined spaces or damp locations, do not use a welder

with AC output unless it is equipped with a voltage reducer.
Use equipment with DC output.

14. Wear a safety harness to prevent falling if working above

floor level.

15. Keep all panels and covers securely in place.

WARNING

ARC RAYS can burn eyes and skin; NOISE can
damage hearing. Arc rays from the welding process
produce intense heat and strong ultraviolet rays that
can burn eyes and skin. Noise from some processes
can damage hearing.

1. Wear a welding helmet fitted with a proper shade of filter

(see ANSI Z49.1 listed in Safety Standards) to protect your
face and eyes when welding or watching.

2. Wear approved safety glasses. Side shields recommended.

3. Use protective screens or barriers to protect others from flash

and glare; warn others not to watch the arc.

4. Wear protective clothing made from durable, flame-resistant

material (wool and leather) and foot protection.

5. Use approved ear plugs or ear muffs if noise level is high.

SECTION 1:

SAFETY INSTRUCTIONS AND WARNINGS

!

WARNING

PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY OR DEATH. KEEP CHILDREN AWAY. PACEMAKER WEARERS
KEEP AWAY UNTIL CONSULTING YOUR DOCTOR. DO NOT LOSE THESE INSTRUCTIONS. READ OPERATING/INSTRUCTION MANUAL
BEFORE INSTALLING, OPERATING OR SERVICING THIS EQUIPMENT.

Welding products and welding processes can cause serious injury or death, or damage to other equipment or property, if the operator
does not strictly observe all safety rules and take precautionary actions.

Safe practices have developed from past experience in the use of welding and cutting. These practices must be learned through study
and training before using this equipment. Some of these practices apply to equipment connected to power lines; other practices apply
to engine driven equipment. Anyone not having extensive training in welding and cutting practices should not attempt to weld.

Safe practices are outlined in the American National Standard Z49.1 entitled: SAFETY IN WELDING AND CUTTING. This publication
and other guides to what you should learn before operating this equipment are listed at the end of these safety precautions. HAVE ALL
INSTALLATION, OPERATION, MAINTENANCE, AND REPAIR WORK PERFORMED ONLY BY QUALIFIED PEOPLE.

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