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Safety

CHAPTER. Safety. 1. Instructor Name: (Your Name ). Learning Objectives. List proper attire for working in a truck repair facility Choose which type of protective eye wear should be worn for a given task Describe some of the hazards associated with high voltages

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Safety

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  1. CHAPTER Safety 1 Instructor Name:(Your Name)

  2. Learning Objectives • List proper attire for working in a truck repair facility • Choose which type of protective eye wear should be worn for a given task • Describe some of the hazards associated with high voltages • Describe some of the hazards associated with hybrid trucks

  3. Learning Objectives (continued) • Explain the purpose of the third terminal on a North American 120 volt AC outlet and why it is important • Explain personal safety precautions, including the use of MSDS

  4. Proper Attire • No loose or un-tucked clothes • No jewelry • Tie up long hair • Steel toe leather work boots with slip resistance soles • Leather gloves for mechanical protection • Chemical resistant gloves prevent chemical absorption through the skin

  5. Proper Foot and Eye Protection Figure 1-1 Protective footwear. Figure 1-2 Safety glasses.

  6. Eye Protection • Safety glasses with side shields should be worn at all times • Face shield provides added protection • Know location of eye wash stations • Test eye wash stations at least once a month

  7. Face Shield and Eye Wash Station Figure 1-3 Safety goggles and full face shield. Figure 1-4 Emergency eye wash station.

  8. Electrical Safety • Some truck components such as injectors, hybrid batteries, and inverters use voltages sufficient to cause an electrical shock • Burns can be caused by shop power or hand tools that short a DC circuit • Remove all jewelry when working on vehicles • Never remove ground terminal on extension cords or power tools • Test GFI outlets periodically

  9. Battery Safety • Wear eye protection and protective clothing when working with batteries • Keep baking soda near battery storage area • Battery storage and servicing area should be well ventilated • Lithium hybrid batteries will explode if exposed to water

  10. Other Personal Safety • Never smoke in the shop or in vehicles • Use care when tilting hoods, check for forward clearance and all springs, cables, and anchors • When tilting COE trucks remove all loose items inside the cab • Never work under a partially tilted COE • Tag vehicles with list of nature of work being performed • Remove keys when working in or under vehicle • Know location and proper operation of shop fire extinguishers

  11. Tilting Hood Figure 1-7 Tilting hood.

  12. Class of Fire and Extinguisher Figure 1-8 Fire extinguisher selection guide.

  13. Hazardous Communication or Right to Know • Hazardous communication administered by OSHA • Employer’s responsibility to provide information on hazardous chemicals used in work place • Employer’s responsibility to provide MSDS material safety data sheet • Employer must keep MSDS available to all employees • Employees responsibility to keep informed and protect yourself

  14. Hazardous Communication or Right to Know Figure 1-9 MSDS information is extremely important to your personal safety. Figure 1-10 Chemical respirator.

  15. Summary • Safe work practices are the personal responsibility of each technician. • Proper attire is very important for personal safety. • Selection of proper types of gloves is important to protect your hands. There are many different types of gloves. Chemical resistant gloves should be worn to prevent harmful chemicals from being absorbed into the body through the skin.

  16. Summary (continued) • The proper form of protective eye wear is important to protect your vision. • Electric shock is the flow of current through the body. Electric shock causes nerve impulses to muscles to be overridden. • The grounding terminal present on many electrical devices can protect you from electric shock. Never use an electric device that has had the grounding terminal removed.

  17. Summary (continued) • Jewelry should never be worn in the shop. Jewelry can result in severe burns or become entangled in rotating components. • Lead acid batteries are very hazardous. Batteries can explode, resulting in sulfuric acid spraying over a wide area. • Hybrid trucks operate on voltages that may exceed 500 volts and make use of lithium-ion batteries. You should never attempt to service the high voltage systems on hybrid trucks until you have had proper training. Orange colored wire indicates high voltage.

  18. Summary (continued) • Know where and what types of fire extinguishers are located in your shop. Always use the correct type of fire extinguisher for the type of fire to prevent electric shock and other hazards. • Material safety data sheets are in the shop for your benefit. Read these sheets to determine what type of protective equipment you need to handle the material and how to deal with emergencies that arise related to the material.

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