Sledge Hammers

Sledge Hammers PowerPoint PPT Presentation


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Origin. Invented in the ship building industryShips were held on

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Sledge Hammers

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1. Sledge Hammers

2. Origin Invented in the ship building industry Ships were held on “sledges” while they were being built These “sledges” were held in place by wooden chocks The Sledge Hammer was used to remove the wooden chocks

3. Specifications Handle: Wood or Fiberglass Head: Forged Steel (Various Sizes) Finish: Lacquered or Painted Grips: None, Rubber or Taped

4. Uses Demolition Masonry Walls Gypsum Board Walls Machine Maintenance Dislodging Stuck Objects Replacing Metal Pins Driving Fence Posts Railroad Spikes

5. People who use Sledgehammers Most Construction Trades: Electrician Site Work Mechanical Masonry Demolition Shell Contractors Steel/Iron Workers

6. Types Fiberglass Handle (33”-35”) Sizes: 6lb, 8lb, 10lb, 12lb, 16lb, 20lb Wooden Handle (33”-35”) Sizes: 6lb, 8lb, 10lb, 12lb, 16lb, 20lb Hand Held (16”) Sizes: 2lb, 3lb, 4lb, 6lb, 8lb, 10lb

7. Proper Use Use both hands Swing using your legs and core Wear proper PPE (discussed on next slide) Focus on the task you are performing Follow OSHA standards relevant to type work being done

8. Major Safety Concerns Muscle Pulls/Back Problems Improper use can cause serious muscle pulls and back injuries Struck By Debris Metal Shards Machine Equipment Caught Between Equipment while trying to repair Fall Losing balance from weight of sledge hammer

9. Proper Safety Precautions Stretch Well Choose the right size hammer for the job and physical ability of the worker Inspect the Equipment Cracked or Chipped handles Cracked or Chipped heads Inspect the work area Check for hazards Don’t work under loads Make sure no one is within swinging distance

10. Personal Protective Equipment (PPE) Hard Hat Hand Protection Eye Protection Foot Protection Elbow/Knee Pads Plastic Neck Guard

11. Fatality Case #1 “At approximately 15:00 on June 18, 2001, an employee was preparing to repair a water well when he was using a sledgehammer to pound a steel stake into the ground. A small fragment of steel from the hammer broke away and penetrated his chest. In spite of rescue efforts, he died at the scene.” This is an example of a struck by, normal PPE would not protect the worker in this situation

12. Fatality Case #2 “'at approximately 2:30 p.m. on June 28, 1991, employee #1 was attempting to straighten out a bent rear section of the body of a Mack r685 12-yard dump truck. Employee #1 had propped open its tailgate with a piece of wood and was hitting the metal with a sledge hammer. The piece of wood that was holding open the gate dislodged and the heavy metal tailgate closed on the employee, crushing him between the truck and the tailgate. He was taken to the hospital where he died from his injuries.” This is an example of the a caught in between injury, if the employee followed the truck manufacturer's instructions and used the right tool for the job.

13. Fatality Case #3 “'During the removal of railroad rails for the purpose of refurbishing the tracks and ties an employee was struck by a 1-cm x 1/2 cm shard of fractured sledge hammer head. The sledge hammer head produced the single shard when it struck a punch that was being used to drive a heal filler bolt from the rail, heal filler block and joint bar. The shard struck and entered the anterior neck of the employee using the sledge hammer. Upon entry the shard penetrated 4-inches perforating the right carotid, left carotid, and left subclavian arteries; left pleural cavity; and the apex of the left lung. The employee was wearing the customary and usual personal protective equipment,” This is a struck by case, normal PPE would not be able to protect the employee from this. The employee should have inspected the equipment before using it.

14. Fatality Case #4 “'at approximately 8:25 a.m., on September 8, 1992, two workers were standing on a steel girder during steel erection for a warehouse addition. Open web steel bar joists had previously been set down onto and between two steel girders. No safety nets or fall protection was in use. Workers were not performing steel connecting tasks but were measuring and about to align and tack weld the bar joists into final position. Employee #1 attempted to hand the other worker a long-handled sledgehammer, but apparently lost his balance and fell 39 ft to the hardened earth. Sustaining multiple injuries, employee #1 was killed.” This is an example of a fall, if the employees were following the fall protection OSHA standards then they would be alive still.

15. Relative OSHA Standards (PPE and Tools) Personal Protective and Live Saving Equipment (Subpart E) OSHA 1926.95: Criteria for person protective equipment OSHA 1926.96: Occupational foot protection Tools- Hand and Power (Subpart I) OSHA 1926.301: Hand Tools A. Employers shall not issue or permit the use of unsafe hand tools. D. The wooden handles of tools shall be kept free of splinters or cracks and shall be kept tight in the tool.

16. Relative OSHA Standards (Fall Protection) Fall Protection (Subpart M) OSHA 1926.500: Scope, application, and definitions OSHA 1926.501: Duty to have fall protection OSHA 1926.502: Fall protection systems criteria and practices OSHA 1926.503: Training requirements Steel Erection (Subpart R) OSHA 1926.760: Fall Protection

17. Relative OSHA Standards (Demolition and Hoisting) Cranes, Derricks, Hoists, Elevators, and Conveyors (Subpart N) 1926.550: Cranes and Derricks Steel Erection (Subpart R) 1926.753: Hoisting and Rigging Demolition (Subpart T) 1926.850: Preparatory Operations 1926.854: Removal of walls, masonry sections, and chimneys 1926.858: Removal of steel construction

18. Citations 1. Wikipedia- “Sledge Hammer” http://en.wikipedia.org/wiki/Sledgehammer 2. http://www.hammersource.com/Sledge_ Hammers.html 3. OSHA Fatality Report 1990-2007 4. OSHA 29 CFR 1926 Construction Industry Regulations. Geneseo, IL: Reglas Press, LLC, 2007.

19. Think Safety Work Safely

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