April 1, 2015

How to adjust a table saw blade

By Lyle Weischwill
How to adjust a table saw blade

This DIY repair guide explains how to adjust the blade alignment on a table saw. The blade should be parallel to the miter gauge groove to make perfect cuts. Follow these steps to adjust the alignment of the table saw blade.

Follow the steps in this repair guide and video to adjust the blade alignment on common Craftsman, Mastercraft, Tradesman, Companion, DeWalt and Ryobi table saws.

Quick links
Tools required
Combination square
Slot screwdriver
Felt-tip marker
Work gloves
Repair difficulty
Time required
30 minutes or less
Repair difficulty
Time required
30 minutes or less
Adjusting a blade on a table saw

This video explains how to adjust the blade on a table saw.

Instructions

  1. 01.

    Shut off the electricity

    Unplug the table saw’s power cord from the wall outlet.

  2. 02.

    Remove the blade guard

    Raise the blade to its highest cutting position.

    Push the red button on the blade guard and lift off the blade guard assembly.

    Raise the blade.

    Raise the blade.

    Remove the blade guard.

    Remove the blade guard.

  3. 03.

    Mark the blade

    Loosen the bevel lock, set the blade to 90-degrees (straight up), and then tighten the bevel lock handle.

    Mark the right side of one blade tooth using a felt-tip marker.

    Rotate the marked blade tooth so that it's 1/2 inch above the table at the front of the blade.

    Set the blade to 90-degrees.

    Set the blade to 90-degrees.

    Mark one blade tooth.

    Mark one blade tooth.

  4. 04.

    Set up the combination square

    Place the base of the combination square in the right side miter gauge groove.

    Adjust combination square to that the ruler tip touches the marked blade tooth and lock the ruler.

    Place the combination square in the miter groove.

    Place the combination square in the miter groove.

    Adjust the ruler tip to touch the marked tooth.

    Adjust the ruler tip to touch the marked tooth.

  5. 05.

    Check the blade alignment

    Rotate the blade to bring the marked tooth to one-half of an inch above the table at the rear of the blade.

    Slide the combination square to the rear of the blade and determine the direction and degree of misalignment.

    Slide the square to the rear.

    Slide the square to the rear.

  6. 06.

    Adjust the blade

    If the blade is partial to the right side, turn the left adjustment screw counterclockwise and the right adjustment screw clockwise to align the blade.

    If the blade is partial to the left side, turn the right adjustment screw counterclockwise and the left adjustment screw clockwise to align the blade.

    Recheck the blade alignment and adjust the blade until its parallel.

    Turn the blade adjustment screws.

    Turn the blade adjustment screws.

  7. 07.

    Reinstall the blade guard

    Push the red release button on the blade guard and reinstall the blade guard assembly on the riving knife. Release the red button.

    Reinstall the blade guard.

    Reinstall the blade guard.

  8. 08.

    Restore power

    Plug the table saw into the electrical outlet.

Warning: Undertaking repairs to appliances can be hazardous. Use the proper tools and safety equipment noted in the guide and follow all instructions. Do not proceed until you are confident that you understand all of the steps and are capable of completing the repair. Some repairs should only be performed by a qualified technician.

Symptoms for table saws

Choose a symptom to see related table saw repairs.

Main causes: worn motor brushes, faulty drive motor, using an improper extension cord
Main causes: blade alignment needs adjustment, worn blade, bevel positive stops need adjustments, bevel pointer needs adjustment
Main causes: worn motor brushes, bad drive motor, faulty overload switch, using an improper extension cord, binding saw blade
Main causes: lack of power, broken on/off switch, bad motor overload, broken power cord, bad drive motor
Main causes: dirty saw blade, dull or damaged saw blade, blade alignment needs adjustment
Main causes: saw dust build up, blade elevating and tilting mechanisms need lubrication

Repair guides for table saws

These step-by-step repair guides will help you safely fix what’s broken on your table saw.

April 1, 2015
By Lyle Weischwill
How to adjust a table saw blade

If the table saw isn’t cutting parallel to the miter gauge groove, adjust the cutting blade following the instructions in this repair guide.

Repair difficulty
Time required
 30 minutes or less
April 1, 2015
By Lyle Weischwill
How to replace a table saw drive motor

You can replace a table saw drive motor that is weak or won't run. Here’s how.

Repair difficulty
Time required
 45 minutes or less
April 1, 2015
By Lyle Weischwill
How to replace a table saw motor brush set

Worn motor brushes can make the table saw motor run weak. Here’s how to replace them.

Repair difficulty
Time required
 45 minutes or less

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