Hand and Portable Power Tools29 CFR, Subpart P

Hazard Recognition

Tools are common in “day-to-day” life Difficult to spot hazards due to familiarity Most tools manufactured with safety devices Users must inspect the tool daily Often misused

Examples of Misuse

Using a screwdriver as a chisel Using tools with loose handles Wrenches with sprung jaws

General housekeeping Use of personal protective equipment Spark shield and protection around

flammables Don’t use tools near aisleways

Other Safety Factors

Types of Power Tools

Electric Pneumatic (air) Liquid fuel Hydraulic Powder-actuated

General Power Tool Precautions

Never carry a tool by the cord or hose Never yank the cord to unplug it Keep cords and hoses away from heat, oil,

and sharp edges Disconnect tools when not in use Make sure observers are at a safe distance Secure work with a vise or clamp

General Precautions (cont.)

Keep tools sharp and lubricated

Do not wear loose clothes, ties, jewelry, etc.

Mark or tag all damaged tools with “Do Not Use”

Guarding Requirements

Belts Gears Shafts Pulleys Sprockets Spindles Drums

Fly wheels Chains Other moving parts

Guards Protect Against:

Guards will provide protection for operatorsfrom the following hazards: Point of operation In-running nip points Rotating parts Flying chips and sparks

Power Tools Requiring Momentary Switches

Drills Tappers Fastener drivers Horizontal, vertical, and angle grinders Disc and belt sanders Reciprocating saws Saber saws

Note: These tools can have a “lock-on” switch that turns off with a single finger motion

Safety With Electric Tools

Operate them within their design limitations Gloves and footwear are recommended When they’re not in use, store them in

a dry location Do not use them in wet or damp locations Work areas should be well lighted

Safety With Power Grinders

Always use eye protection Turn off power when it’s not in use Never clamp a hand-held grinder in a vise

Hazards From Pneumatic Tools

Being struck by attachments Being struck by fasteners, etc. Noise

Safety With Powder-Actuated Tools

Do not use in an explosive or flammable atmosphere

Inspect the tool prior to use Never point the tool at anyone Load the tool only when it is going

to be used Keep hands clear of the barrel end

Safety With Jacks

Set up a jack so that the base rests on a firm level surface

Make sure the jack is centered Ensure that the jack head is against

a level surface Be certain the lift force is applied evenly

The Five Basic Rules for Power Tools

Keep all tools regularly maintained Use the right tool for the job Examine each tool for damage

before use Operate tools in accordance with

the manufacturer Provide and use the proper personal

protective equipment

Quiz

1. There are several types of power tools, including _____________________ and ____________________.

2. It is okay to put a portable grinder in a vise as long as it is tightened securely. True or False

3. Most hazards associated with hand tools are easy to spot because we very seldom would use a tool in “day-to-day” life. True or False

4. Guards should offer protection from _______________, _____________, rotating parts, and flying chips or sparks.

5. Tools requiring momentary on/off switches can never have a lock-on switch. True or False

Quiz (cont.)

6. Never use electric tools in ___________ conditions.

7. When using grinders you should always wear eye protection. True or False

8. Parts on tools that should be guarded include ____________, ____________, and ____________.

9. Because powder-actuated tools use small explosive charges, it is okay to use them in explosive atmospheres. True or False

10. When not in use, power tools should be __________________________________________.

Quiz Answers

1. There are several types of power tools, including electric, pneumatic, liquid fuel, hydraulic, and powder-actuated.

2. False. You should never place a portable grinder in a vice.

3. False. The hazards are difficult to spot because they become so routine.

4. Guards should offer protection from point of operation, in-running nip points, rotating parts, and flying chips or sparks.

5. False. Tools requiring momentary on/off switches can have a lock-on switch if they can be activated with one finger.

Quiz Answers (cont.)

6. Never use electric tools in wet conditions.

7. True. You must always wear eye protection when using a grinder.

8. Parts on tools that should be guarded include belts, gears, shafts, pulleys, sprockets, spindles, and drums.

9. False. Powder-actuated tools should never beused in flammable or explosive atmospheres.

10. When not in use, power tools should be disconnected.