Revision: ab issue Date: May 2011 Manual No.: 0-mag1500511



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1.2 Arc Welding Hazards

The symbols shown below are used throughout this manual to call attention to and identify possible hazards. When you see the symbol, watch out, and follow the related instructions to avoid the hazard. The safety information given below is only a summary of the more complete safety information found in the Safety Standards listed in Section 1-4. Read and follow all Safety Standards.


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.


  • Do not touch live electrical parts.




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




  • Insulate yourself from work and ground using dry insulating mats or covers big enough to prevent any physical contact with the work or ground.







  • Use AC output ONLY if required for the welding process.




  • If AC output is required; use remote output control if present on unit.




  • Disconnect input power or stop engine before installing or servicing this equipment. Lockout/tagout input power according to OSHA 29 CFR 1910.147 (see Safety Standards).




  • Properly install and ground this equipment according to its Owner’s Manual and national, state, and local codes.




  • 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.




  • When making input connections attach proper grounding conductor first – double-check connections.




  • Frequently inspect input power cord for damage or bare wiring – replace cord immediately if damaged – bare wiring can kill.




  • Turn off all equipment when not in use.




  • Do not use worn, damaged, undersized, or poorly spliced cables.




  • Do not drape cables over your body.







  • Do not touch electrode if you are in contact with the work, ground, or another electrode from a different machine.




  • Use only well-maintained equipment. Repair or replace damaged parts at once. Maintain unit according to manual.




  • Wear a safety harness if working above floor level.




  • Keep all panels and covers securely in place.




  • Clamp work cable with good metal-to-metal contact to work-piece or worktable as near the weld as practical.




  • Insulate work clamp when not connected to work-piece to prevent contact with any metal object.




  • Do not connect more than one electrode or work cable to any single weld output terminal.





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