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The Safety Concern with The Notorious Sledge Hammer

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What is a Sledge Hammer? Also known as a War Hammer or Maul ... Wooden Sledge Hammers must be protected from extreme dampness and drying. ... – PowerPoint PPT presentation

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Title: The Safety Concern with The Notorious Sledge Hammer


1
The Safety Concern with The Notorious Sledge
Hammer
2
Overview
  • What is a Sledge Hammer?
  • Sledge Hammer Uses and Applications
  • Sledge Hammer Safety
  • Wooden Sledge Hammer Safety
  • Who uses Sledge Hammers?
  • Proper Sledge Hammer Form Use
  • Sledge Hammer Selection
  • Applicable OSHA 1926.301- Hand Tools
  • Sledge Hammer Substitutes
  • Case Studies

3
What is a Sledge Hammer?
  • Also known as a War Hammer or Maul
  • Tool- consists of a large, flat head attached to
    a lever or handle.
  • It can apply much more power, impulse than
    ordinary hammers due to its larger size.
  • The distribution of force can be applied to a
    wide area.

4
What is a Sledge Hammer?
  • Handle usually 1 meter to 3 meters in length.
  • Head mass 1 to 3 kilograms in weight.
  • Often used to break through drywall and masonry
    walls.
  • Used for driving heavy spikes, stakes, or chisels
    into stone, brick, or earth.

5
Lightweight vs. Heavyweight Applications
  • Lightweight sledgehammers used with a special
    kind of chisel to cut bricks or to clean out the
    mortar between bricks
  • Larger, heavyweight sledgehammers are used
    primarily for demolition.

6
Other Sledge Hammer Uses
  • Chipping Concrete
  • Setting Concrete Forms
  • Setting Steel Beams
  • Lining Up Anchor Bolts and Structural Steel
    Columns.
  • Any Type of Demolition!!!!!

7
Sledge Hammer Safety
  • When using a Sledge Hammer
  • Wear heavy-duty work gloves.
  • Never use a hammer with a chipped head.
  • Replace broken handles.
  • Always wear safety glasses or goggles during use.

8
Wooden Sledge Hammer Safety
  • Wooden Sledge Hammers must be protected from
    extreme dampness and drying.
  • Too much dampness can cause the wood to swell and
    eventually crack
  • Too much dryness can cause shrinkage, and loosen
    the head.

9

Wooden Sledge Hammer Safety
  • If the head on a wooden handle becomes loose
  • Try driving additional wedges into the top.
  • If that doesn't work, or if the handle shrinks,
    cracks, or breaks, replace the handle.

10
Who uses Sledge Hammers?
  • Most Construction Trades
  • Electrician
  • Site Work
  • Mechanical
  • Masonry
  • Demolition
  • Shell Contractors
  • Steel/Iron Workers

11
Proper Sledge Hammer Form and Use
  • The power of a sledge comes from getting the head
    in motion.
  • Save your back and make it easy by bending your
    knees and bringing the weight close to your body
    to lift it.
  • Straighten your knees a little at the top of the
    swing.
  • Then let the hammer fall of its own weight.
  • Check the hammer head often for looseness.

12
Sledge Hammer Selection
  • Choose a hammer with a forged head.
  • Avoid heads of cast steel
  • These break more easily and can send dangerous
    metal chips flying.
  • Select a tool that feels right for your strength
    and swing.

13
Applicable 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.

14
Sledge Hammer Substitutes
  • Fence Post Drivers
  • Can be a safe substitute for Sledge Hammers when
    driving posts.

15
Case Studies
  • According to the Occupational Injuries among US
    Construction Workers Treated at the George
    Washington University Emergency Department
    1990-1997
  • Out of 51 Injured Roofers and Water proofers
  • 16 of injuries were Struck By/Against Object
  • 1 injury was a struck by Sledge Hammer Injury
  • 8 of injuries were Over exersion/Strenous
    Movement
  • 1 injury was due to overexertion while using a
    Sledge Hammer

16
Case Studies
  • In Alaska, the Owner of Logging Company Crushed
    and Killed by Root wad of Windfall Tree During
    Bucking OperationAlaska
  • Victim was in the process of cutting a 115 feet
    long, 26 diameter at the base, Hemlock tree with
    a chain saw.
  • He was about 80 complete, when the chain saw
    went faulty.
  • He used a wedge and sledge hammer to cut the
    remainder of the tree, when the tree broke lose,
    it rolled down slope engulfing and fatally
    crushing.

17
Case Studies cont.
  • NIOSH researchers concluded that, to prevent
    similar occurrences, employers should
  • ensure that falters and buckers property evaluate
    felled trees and the area around the trees, so
    that potential hazards can be avoided during
    bucking
  • ensure that all logging workers receive adequate
    training in safe work procedures
  • designate a competent person to conduct
    inspections to ensure that workers follow
    established safe falling and bucking procedures.

18
The End
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