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Powered Hand Tools - Saws - Circular

What should you do before start cutting with a circular saw? Wear safety glasses or goggles, or a face shield (with safety glasses or goggles).

context Wear safety glasses or goggles, or a face shield (with safety glasses or goggles).
context Wear an approved respirator or dust mask when exposed to harmful or nuisance dusts.
context Use appropriate hearing protection equipment in noisy areas.
context Check the retracting lower blade guard to make certain it works freely.
context Check the blade for any signs of damage. Do not use a blade that is damaged, warped or bent.
context Ensure that the blade that you have selected is sharp enough to do the job. Sharp blades work better and are safer.
context Check the saw for proper blade rotation.
context While the saw is unplugged or the battery has been removed, set the blade's depth and lock it at a depth so that the lowest tooth does not extend more than about 0.3 cm (1/8") beneath the wood.
context Keep all cords clear of the cutting area.
context Circular saws are designed for right-hand operation; left-handed operation will demand more care to operate safely.

context Check the retracting lower blade guard frequently to make certain it works freely. It should enclose the teeth as completely as possible, and cover the unused portion of the blade when cutting.
context Check that the retracting lower blade guard has returned to its starting position before laying down the saw.
context Keep upper and retracting lower blade guard clean and free of sawdust.
context Disconnect the power supply before adjusting or changing the blade.
context Allow the saw to reach full power before starting to cut.
context Use two hands to operate saws – one on a trigger switch and the other on a front knob handle.
context Stand to the side while operating the saw to avoid kickback.
context Keep the motor free from the accumulation of dust and chips.
context Select the correct blade for the stock being cut and allow it to cut steadily. Do not force it.
context Secure stock being cut to avoid movement.

Refer to Powered Hand Tools - Basic Safety for Electric Tools for general safety tips.

engineering Do not hold or force the retracting lower guard in the open position.
engineering Do not place your hand under the shoe or guard of the saw.
requirement Do not over-tighten the blade-locking nut.
requirement Do not twist the saw to change, cut or check alignment.
ppe Do not use a saw that vibrates or appears unsafe in any way.
requirement Do not force the saw during cutting.
requirement Do not cut stock without first checking for obstructions or other objects such as nails and screws.
requirement Do not carry the saw with a finger on the trigger switch.
requirement Do not overreach. Keep proper footing and balance.
requirement Do not rip stock without using a wedge or guide clamped or nailed to the stock.