Download CHAPTER 3 Shop Safety

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
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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