Ridgid R4512 Owners Manual - Page 43
Making A Dado Cut - dado throat plate
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OPERATION making a DADO cut See Figure 67. An optional dado throat plate is required for this procedure. All blades and dado sets must not be rated less than the speed of this tool. This saw is designed for use with an up to 8 in. stack dado (up to width of 13/16 in., with a maximum depth of cut of 1-1/2 in.). Do not use an adjustable dado on this saw. NOTE: Do not set beyond 1-1/2 in. Ensure that the release lever is not raising the throat plate. You may purchase an optional dado throat plate (part number 080035003093). DADO CUT WARNING: Always put all blade washers in proper location when reinstalling standard blade. Failure to do so can result in possible injury and damage to the tool. WARNING: Always use push blocks, push sticks, or featherboards when making dado cuts to avoid the risk of serious injury. Unplug your saw. Remove the blade guard, anti-kickback pawls, throat plate, and spreader/riving knife. Remove the blade nut, outer blade washer, saw blade, inner blade washer, and spacer. NOTE: Always store the blade washer and throat plate in a secure location. Reinstall the inner blade washer. Mount the dado blade, according to manufacturer instructions, using the blade and chippers appropriate for the desired width of cut. Reinstall the blade nut. Note: The blade washer may be used provided the arbor shaft extends slightly beyond the arbor nut. Make sure the blade nut is fully engaged and the arbor extends past a securely tightened blade nut. Place release lever in unlocked position. Fig. 67 Install the dado throat plate and rotate the blade by hand to make sure it turns freely then lower the blade. Set the blade height. Depending on the shape and size of the wood, use either the rip fence or miter gauge. NOTE: If you cannot use either the rip fence or miter gauge, you cannot make a dado cut with this saw. Turn the saw on. Note: Make sure the wood does not touch the blade before you turn on the saw. Let the blade build up to full speed before feeding the workpiece into the blade. Position the workpiece flat on the table with the edge flush against the rip fence or miter gauge. Use a push block or push stick to move the wood through the cut past the blade. Never push a small piece of wood into the blade with your hand, always use a push stick. The use of push blocks, push sticks, and featherboards are necessary when making non-through cuts. When the cut is made, turn the saw off. Wait for the blade to come to a complete stop before removing the workpiece. Once all dado cuts are completed: Unplug your saw. Reinstall a standard blade. Reinstall the spreader/riving knife in the "up" position then install the blade guard and anti-kickback pawls. 43