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...Operation manual a arc welding machine listed serial number where purchase date of purchased content safety summary electrical principle drawing specifications control and connectors installation parameters precaution maintenance troubleshooting service page may damage your body or others so please take protection measure in only ones who are trained professionally can install debug operate maintain repair the equipment do not when is connected with power electric shock kill never touch parts wear dry hole free gloves clothes to insulate yourself from work ground using insulation make certain large enough cover full area physical contact ensure correctly metal be welded good earth according safe position fumes gasses dangerous produce gases hazardous health avoid breathing these keep head out fume ventilation exhaust at away zone sparks cause fire explosion remove hazards if this possible them prevent starting remember that materials easily go through small cracks openings adjacent are...