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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
