课件-手工具Hand and Power Tools.pdf

Tools – Hand and Power 1 Hazards Workers using hand and power tools may be exposed to these hazards: objects that fall, fly, are abrasive, or splash harmful dusts, fumes, mists, vapors, and gases frayed or damaged electrical cords, hazardous connections and improper grounding 2 Basic Tool Safety Rules • Maintain regularly • Use right tool for the job • Inspect before use • Operate according to manufacturers’ instructions • Use the right personal protective equipment (PPE) • Use guards 3 Hand Tool Hazards Hazards are usually caused by misuse and improper maintenance Do not use: wrenches when jaws are sprung impact tools (chisels and wedges) Crack when heads have mushroomed tools with loose, cracked or splintered handles a screwdriver as a chisel tools with taped handles – they may be hiding cracks 4 Hand Tools - Protection Use PPE, such as safety goggles and gloves Keep floor surface where working free from debris and tripping or slipping hazards Keep cutting tools sharp 5 Power Tools Must be fitted with guards and safety switches Extremely hazardous when used improperly Different types,determined by their power source: Electric Pneumatic Liquid fuel Hydraulic Powder-actuated 6 Switches Hand-held power tools must be equipped with one of the following: Constant pressure switch shu