Transcript Safety - Cengage

CHAPTER
1
Safety
Instructor Name: (Your Name)
Copyright © 2014 Delmar, Cengage Learning
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
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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
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Proper Attire
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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
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Proper Foot and Eye Protection
Figure 1-1 Protective footwear.
Figure 1-2 Safety glasses.
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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
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Face Shield and Eye Wash Station
Figure 1-3 Safety goggles and full face
shield.
Figure 1-4 Emergency eye wash station.
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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
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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
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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
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Tilting Hood
Figure 1-7 Tilting hood.
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Class of Fire and Extinguisher
Figure 1-8 Fire extinguisher selection guide.
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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
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Hazardous Communication or
Right to Know
Figure 1-9 MSDS information is
extremely important to your personal
safety.
Figure 1-10 Chemical respirator.
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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.
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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.
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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.
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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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