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CHAPTER 3 Shop Safety General Personal Safety Eye protection Back protection Ear protection Clothing and hair awareness Hand protection Eye Injury Proper Lifting Technique Remove all chain and rings Ring Injury Protective gloves are available in several sizes and materials. Hair caught in Drill Press Fire Safety General fire safety Fire extinguishers a. Class A – paper and wood b. Class B – grease and oil c. Class C – electrical d. Class D – chemical, flammable metals Flammable material Fuel fires Electrical fires Steps in Using a Fire Extinguisher 1. 2. 3. 4. Pull pin from handle. Aim nozzle at base of fire. Squeeze handle. Sweep entire width of fire. Figure 1–80 A CO2 fire extinguisher being used on a fire set in an open drum during a demonstration at a fire training center. Shop Habits Common sense Use shop rags Clean tools after use and return Grease sweep (oil absorbent) Clean spills immediately Keep shop and floors clean at all times Properly dispose of hazardous waste Proper Containers Injection injuries: seemingly minor injuries with major consequences Guidelines for Handling Hazardous Waste Waste oil can be recycled or used in waste oil heaters where allowable. Drain oil filters for at least 24 hours. Send batteries to a reclaimer or the distributor. Refrigerants must be reclaimed and recycled. Hazardous Materials OSHA EPA Material Safety Data Sheets (MSDS) a. Safety cautions b. First aid c. Handling d. Reactivity information e. Cleanup and storage Hot and Cold Solvent Safety Caustic or acid cautions a. Wear gloves b. Rinse from skin immediately, see a physician c. Wear eye protection, flush immediately, see physician d. Use lifting slings to avoid splashing e. Avoid breathing vapors Skin care Breathing Safety Asbestos a. HEPA vacuum b. Wet solvent cleaners c. Asbestos disposal Respirators Dry brushing and compressed air cleaning is prohibited! Electrical Safety Don’t stand on wet surfaces using electric tools Be sure tool is off before plugging into outlet Outlets should be properly grounded Use three-wire electrical tools when available Inspect tools regularly Observe wire color coding when repairing or replacing power cords General Automotive Shop Safety Cooling fan safety Coolant burns Hand tool safety Vise safety Puller safety Machinery safety Electric drill safety Grinder safety Can come on at any time ! Coolant Burns Most burns caused by coolant or exhaust systems If hose is hard, coolant level is acceptable If hose collapses, steam may still burn Squeeze Upper Hose Before Opening Coolant Cap Stand Up Creeper When Not In Use General Safety (cont’d) Wire wheel safety Compressed air safety Impact wrench safety Air chisel safety Press safety Lifting safety Engine hoist safety Die grinder/air drill safety Engine Hoist Safety General Lifting Safety Be sure the lift contacts the frame at the recommended lift point When lifting on a frame-contact hoist, raise the vehicle six inches and shake it Typical Lifting Points General Shop Safety (cont’d) Transmission jack safety Battery safety a. Jump starting b. Battery acid Refrigerant safety General automobile safety a. Test drive b. Working around belts and moving parts Remove Negative Cable First High Voltage Systems Hybrid electric vehicles (HEVs) contain high voltage batteries and circuits. These high voltages can cause death. Avoid all orange wiring and connectors. Deactivate the high voltage system before any service is performed. Follow all manufacturer’s warnings and procedures. Figure 1–85 The high-voltage disconnect switch is in the trunk area on a Toyota Prius. Insulated rubber linesman’s gloves should be worn when removing this plug. Figure 1–86 The high-voltage shut-off switch on a Ford Escape hybrid. The switch is located under the carpet at the rear of the vehicle. Figure 1–87 The shut-off switch on a GM parallel hybrid truck is green because this system uses 42 volts instead of higher, and possibly fatal, voltages used in other hybrid vehicles.. Jump Starting 1. 2. 3. 4. Positive of weak battery Positive of good battery Negative of good battery Connect to engine ground Careless Use of Battery Charger causes battery to Explode Review & Questions Eye protection, Back protection, Ear protection Fire Safety, Fire extinguishers Hazardous Materials, Solvents Electrical Cooling fan, Burns, Hand tool, and Vise safety Vehicle Lifting, Jack stands