4
5. Always verify the supply ground-check and be sure that input power cord ground
wire is properly connected to ground terminal in disconnect box or that cord plug is
connected to a properly grounded receptacle outlet.
6. When making input connections, attach proper grounding conductor first - double
check connections.
7. Frequently inspect input power cord for damage or bare wiring. Replace cord
immediately if damaged - bare wiring can kill.
8. Turn off all equipment when not in use.
9. If earth grounding of the work-piece (JOB) is required, ground it directly with a
separate cable - do not use work clamp or work cable.
10. Do not touch electrode if you are in contact with the work, ground, or another
electrode from a different machine.
11. Use only well-maintained equipment. Repair or replace damaged parts at once.
Maintain unit according to manual.
12. Wear a safety harness if working above floor level.
13. Keep all panels and covers securely in place.
14. Clamp work cable with good metal to metal contact to work-piece or worktable as
near the weld as practical.
C. Arc Rays
Arc rays can burn eyes and skin; noise can damage hearing; flying slag or sparks can
injure eyes.
Arc rays from the welding process produce intense visible and invisible (ultraviolet
and infrared) rays that can burn eyes and skin. Noise from some processes can
damage hearing. Chipping, grinding and weld cooling throw off pieces of metal or
slag.
1. Use approved ear plugs or ear muffs if noise level is high.
2. Use a welding helmet fitted with a proper shade of filter to protect your face and
eyes when welding or watching.
3. Wear approved safety glasses with side shields.
4. Use protective screens or barriers protect others from flash and glare; warn others
not to watch the arc.
5. Wear protective clothing made from durable, flame-resistant material (wool and
leather) and foot protection where necessary.
D. Fumes and Gases
Fumes and gases can be hazardous to your health. Welding produces fumes and gases.
Breathing these fumes and gases can be hazardous to your health.
1. Keep your head out of the fumes. Do not breathe the fumes.
2. If inside, ventilate the area and/or use exhaust at the arc to remove welding fumes
and gases.
3. If ventilation is poor, use an approved air-supplied respirator.
4. Read the Material Safety Data Sheets (MSDS) and the suppliers instruction for
metals, consumables, coatings, cleaners, and degreasers.
