Riving Knife

The riving knife works in the same manner as the spreader on the blade guard assembly. It is a metal plate that prevents the newly cut workpiece from pinching the backside of the blade and caus- ing kickback.

The key difference between the spreader and the riving knife is that the riving knife mounts below the blade's highest point of rotation, as shown in Figure 53.

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Figure 53. Height difference between riving knife

and blade.

The height difference between the riving knife and the blade allows the workpiece to pass over the blade during non-through cuts (those in which the blade does not cut all the way through the thick- ness of the workpiece).

The riving knife acts as a barrier behind the blade to reduce the risk of hands being pulled into the blade if a kickback occurs.

The riving knife must be kept within the range shown in Figure 54. For that reason, we only recommend using a 10" blade for operations that require use of the riving knife.

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Figure 54. Allowable top and bottom distances

between riving knife and blade. Model G0690/G0691 (Mfg. 11/10+)

To ensure that the riving knife works safe- ly, it MUST be aligned with and correctly adjusted to the blade. Refer to Page 68 to check or adjust the riving knife alignment.

How to Install the Riving Knife

The riving knife is installed in a similar manner to the blade guard and spreader. Refer to Blade Guard on Page 37 for installation instructions.

When to Use the Riving Knife

Use the riving knife for all non-through cuts made with a standard table saw blade (i.e., dadoes or rabbet cuts in which a dado blade is NOT used, and when using a tenoning jig).

Also, use the riving knife for those special opera- tions where the blade guard or its components get in the way of safe operation, such as with very narrow cuts.

When Not to Use the Riving Knife

The riving knife CANNOT be used with a dado blade. Otherwise, the riving knife height will exceed the blade height and the workpiece will hit the riving knife during the cut, forcing the opera- tor into a dangerous situation of trying to turn the saw off with the workpiece stuck halfway through the cut.

In addition, although it is possible to use the riv- ing knife for through cutting operations, the blade guard assembly offers far more injury protection and risk reduction than the riving knife. Therefore, we strongly recommend that you use the blade guard assembly instead of the riving knife for through cuts.

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Grizzly G0690, G0691 How to Install the Riving Knife, When to Use the Riving Knife, When Not to Use the Riving Knife
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G0690, G0691 specifications

The Grizzly G0691 is a remarkable cabinet table saw designed for both hobbyists and professional woodworkers seeking precision and reliability. With its robust construction and advanced features, it stands out in the woodworking industry, making it a popular choice among serious craftspeople.

One of the key features of the G0691 is its powerful 3 HP motor, capable of delivering the performance needed for even the most demanding tasks. This motor can handle various materials, from softwoods to hardwoods, ensuring smooth, clean cuts every time. The saw's electronic variable speed control also allows users to adjust the blade speed according to the type of material being cut, providing flexibility and versatility in woodworking projects.

The G0691 boasts a heavy-duty cast iron table, which offers exceptional stability and supports larger workpieces. The table measures 27 inches by 40 inches, providing ample workspace for cutting. The potential for expansion is also present, as the saw is designed to accommodate extension wings for added surface area, making it easier to manage larger materials.

An impressive feature of the G0691 is its premium fence system. The T-square design ensures accurate measurements and smooth adjustments, enabling woodworkers to achieve precise cuts. This system includes a quick-release lever for easy adjustments, allowing for efficiency during the workflow.

Safety is another priority with the Grizzly G0691. The saw is equipped with a smart blade-guard system designed to offer maximum visibility while protecting the user from accidental contact with the blade. Additionally, the riving knife technology significantly reduces the likelihood of kickback, enhancing safety during operations.

The G0691's dust collection system is integrated to minimize debris, creating a cleaner workspace. The system is designed to connect easily to standard dust collection hoses, allowing for effective removal of sawdust and other waste materials.

In summary, the Grizzly G0691 combines power, precision, and safety into an exceptional cabinet table saw. Its durable construction, advanced fence system, effective dust collection, and user-friendly features make it an ideal option for both seasoned professionals and dedicated hobbyists. The investment in this tool is justified by its performance, ensuring it stands out as a valuable addition to any woodworking setup.
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