How to Insert a Blade on a Black & Decker CS1000 Circular Saw


Whether you're a weekend hobbyist or a professional contractor, a circular saw is an invaluable carpentry tool. A circular saw makes it easy to cut boards to length or rip plywood to the desired width. Over time, the blade will become dull, leading to rough cuts, kickback and difficulty cutting. Circular saw blades are inexpensive and easily replaced.

Things You'll Need

  • Scrap wood
  • New 7 1/4-inch blade
  • Unplug the CS1000 circular saw and remove the blade wrench from the rear of the saw shoe.

  • Pull the blade guard back to expose the blade and lay the saw, blade down, on a piece of scrap wood to prevent the blade from turning.

  • Loosen and remove the blade clamping screw by turning it counterclockwise with the blade wrench. Remove the outer washer from the blade spindle.

  • Pull the blade off the inner washer and remove it through the bottom of the saw shoe.

  • Insert the new blade through the saw shoe and fit it onto the inner washer. Place the outer washer onto the spindle with the larger surface of the washer against the blade. Reinstall the blade clamping screw and tighten it with the blade wrench. Place the blade wrench back in the holder on the rear of the saw shoe. Plug the saw in.

Tips & Warnings

  • Be sure to install the new blade with the directional arrows pointing counterclockwise.
  • Never attempt to service the saw while it is plugged in.

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  • Photo Credit David Sacks/Lifesize/Getty Images
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