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POWDER ACTUATED NAIL GUNSBy: Kimberly Weeks

Agenda

• History

• Description

• Use

• Cause of Injuries

• Related Statistics

• Nail Gun Injury

• Injury Prevention (OSHA Regulations)

• Summary

History

• Use of high velocity fastening systems began during World War II to temporarily repair damage to ships

What does it look like?Shown above is a powder actuated fastener and its container along with charges that are .22 caliber explosives. The various colors represent different levels of charge.

Use

Powder Actuated Nail Guns are used to join materials to hard substrates such as steel or concrete.

Processes Which May Cause Injury1. A controlled explosion is created by igniting a small

chemical propellant similar to the process that activates a .22 caliber firearm

2. Being operated by unqualified personnel

3. Leaving the tool unattended

4. Leaving the tool loaded

5. Carrying charges in a pocket

6. Not being aware of someone on

other side of a wall before firing

=

Explosion

Nail Gun InjuriesTrade Association

Nail Gun InjuriesInjury Location

Injury Caused by Powder Actuated Nail Gun

Accident Type: Struck by NailWeather Conditions: N/AType of Operation: RemodelingSize of Work Crew: 2Collective Bargaining NoCompetent Safety Monitor on Site:

No

Safety and Health Program in Effect:

No

Was the Worksite Inspected Regularly:

No

Training and Education Provided:

No

Employee Job Title: MaintainenceAge & Sex: 32-MaleExperience at this Type of Work:

1 Day

Time on Project: 1 Day

Two employees were doing remodeling construction and were building a wall. One of the workers was killed when he was struck by a nail fired from a powder-actuated tool. The tool operator, while attempting to anchor plywood to a 2" × 4" stud, fired the tool. The nail penetrated the stud and the plywood partition prior to striking the victim.

OSHA Subpart I 1926.302 (e) 1

Only to be operated by personnel trained specifically for operation of powder actuated tools.

Injury PreventionTrained Personnel Only

Injury PreventionTest Tool Daily

OSHA Subpart I 1926.302 (e) 2Test each day before loading to be sure safety devices are working properly.

ABOVE AND BEYONDCheck each time the PAT is loaded. It could save a life.

Injury PreventionTest Tool Daily

OSHA Subpart I 1926.302 (e) 3Any tool not in proper working order is to be removed from service and not used until properly repaired.

REMOVE REPAIR

Injury PreventionWear Proper Safety Glasses

OSHA RegulationSupart I 1926.302 (e) 4

Injury PreventionLoad When Ready

OSHA Subpart I (e) 5Load just prior to intended firing time. Do not point tool at any employee loaded or empty.

Injury Prevention

OSHA Subpart I 1926.302 (e) 6Don’t leave loaded PAT unattended.

OSHA Subpart I 1926.302 (e) 7Do not drive into hard or brittle material such as cast iron, glazed tile, surface-hardened steel, glass block, live rock, face brick, or hollow tile.

Injury PreventionCheck Both Sides Before Firing

OSHA Subpart I (e) 8Avoid driving into easily penetrated material unless such materials are backed by a substance that will prevent passing all the way through creating a flying hazard on the other side.

Injury Prevention

OSHA Subpart I 1926.302 (e) 9Do not drive fastener into spalled area.

OSHA Subpart I 1926.302(e) 10Do not use tools in flammable or explosive area.

Subpart I 1926.302 (e) 11

Device on muzzle to prevent firing

when not in contact with surface

Injury PreventionShield in Place

Injury Prevention

OSHA Subpart I 1926.302 (e) 12Powder Actuated Tools must meet ANSI Standards 10.3-1970, Safety Requirements for Explosive-Actuated Fastening Tools.

For Further Information, Please Visit:http://www.cdc.gov/elcosh/

Summary• Powder Actuated Nail Guns are powerful

tools which are to be used by trained personnel who understand the cautions associated with its use.

• Nail gun injuries are common. Studies show, they occur mostly in wood frame construction.

• Users must be vigilant to prevent injuries to themselves and others.

• Safety is everyone’s concern!

• http://www.youtube.com/watch?v=hXHVtQgtnao