What safety precautions should I take to prevent electric shock while welding?

Do not touch live electrical parts — wear dry, hole-free insulating gloves and body protection at all times. Insulate yourself from the work and ground using dry insulating mats, and disconnect input power or stop the engine before installing or servicing the equipment. Always properly install and ground the equipment according to the Owner's Manual and applicable national, state, and local codes. (Page 1)