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Circular Saw Safety

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Circular Saw Safety

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    1. Circular Saw Safety

    2. Circular Saw Circular saws is are power saws that use a spinning disk-shaped blade, which often has a toothed edge

    3. Circular Saws There are many types of circular saws:

    4. Circular Saws Should be considered extremely dangerous There are many different safety issues associated with circular saws Especially portable and cordless models

    5. Circular Saws Could cause extreme body damage, including loss of fingers or limbs, even death Workers must be extremely careful One small slip up could cause a really bad accident Proper safety precautions are essential

    6. Statistics Data from a 2001 Consumer Products Safety Commission study on stationary circular saws show: Of 52,000 injuries: Lacerations – 68% Amputation – 9% Fractures – 9% Avulsions – 8% Other – 6% 83% of the injuries were to the fingers

    7. Statistics (cont.) A large majority of the injuries were caused by contact with the blade Most of the others were caused by being struck with the cutting material or debris 5% required hospitalization 3% required an overnight stay *Study did not include portable circular saws

    8. Injury Reports A worker was ripping wood into long lengths using a portable saw As he cut up the wood, he placed his left hand behind the saw to grip the wood he just cut This caused the wood to close in on the blade and the saw kicked backward (since it rotates clockwise) and cut his thumb off

    9. Cords A worker was nailing and trimming particle board on an 8/12 pitch roof of a house under construction. He slid off the roof falling 30’ head first onto a piece of 2x4" debris. He appeared to slide off the roof feet first with the electrical cord from the a circular saw wrapped around his right leg. The cord was caught between the joist material, went taught, flipping the victim head first onto the wooden debris on the ground. He was pronounced dead at the scene

    10. OHSA Regulations 1926.304(a) All fixed power driven woodworking tools shall be provided with a disconnect switch that can either be locked or tagged in the off position. 1926.304(b) Speeds The operating speed shall be etched or otherwise permanently marked on all circular saws over 20 inches in diameter or operating at over 10,000 peripheral feet per minute. 1926.304(d) Guarding All portable, power driven circular saws shall be equipped with guards above and below the base plate or shoe. … When the tool is withdrawn from the work, the lower guard shall automatically and instantly return to the covering position.

    11. OSHA Regulations 1926.304(e) Personal protective equipment. All personal protective equipment provided for use shall conform to Subpart E of this part. 910.213(a)(6) Circular saw fences shall be so constructed that they can be firmly secured to the table or table assembly without changing their alignment with the saw.

    12. Safety Precautions Wear Eye Protection Wear Hand Protection Wear Hearing Protection Wear Dust Masks Make sure you are operating in a safe area out of the way Be careful of the cords!

    13. Proper Safe Procedure Make sure you are using the correct blade and that it's properly tightened. Always use a sharp blade. Dull blades bind and overheat. Check the blade guard and never disable it Set the depth of the blade properly to avoid kickback Support the work on both sides. Clamp it on one side if you have to.

    14. Safe Operation (cont.) Look for knots and nails before you begin. Be cautious when approaching them. Start the blade before it makes contact with the material to be cut. Stand to the side when you saw in case the wood is kicked back, and don't over-reach. Let go of the trigger if the blade binds, and stick a wooden shim in the cut to release it.

    15. End Circular Saw Safety Watch your fingers!

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