How to Change a Table Saw Blade

No matter how powerful and fast your table saw is, its blades are prone to get dull and blunt over time. But the truth is they aren’t invincible.

Thus, they need to be replaced due to various cutting needs. Now you might have learned operating the table saw like a pro.

But do you know how to change a table saw blade appropriately?

Worry no more!

In today’s article, I will be sharing with you a few easy and effective tips on this topic so that you can alter the table saw blade by yourself without any fumbles or possible injuries.

Before You Start Changing the Table Saw Blade

Pardon the interruption, but I would like to tell you a few things you need to know before you start changing the table saw blade.

For instance, the first and most asked question is “when I should replace the blade”.  So the answer is; the moment when you notice getting uneven cuts and dullness in the teeth is the moment when you should change your table saw blade.

Not necessarily you have to wait till it gets blunt. One might have other reasons like; experimenting on a different cut that requires a blade with a diverse feature, replacing with a relatively powerful and advanced tool or cleaning it for maintenance purpose. Consequently, there can be other reasons as well.

Now the process of changing table saw blades remains similar as always, regardless of whatever purpose you have.

And this one particular process that I am going to outline can be applied to any entry-level, and heavy-duty table saw of different models.

One thing that you need to make sure of is to check the instruction manual before you start, as some of the models have few subtle modifications in the disassembling procedure. Otherwise, it will be just fine. Just follow the below-mentioned steps accordingly!

Step 1: Accumulate all the Essentials You Need

First thing first, you need to gather everything you need to change the blade which are the replacement blade, screwdriver, and an Allen wrench or hex. Other things that you must have are the PPE and safety materials for preventing any impending injuries or accidental cuts.

Step 2: Turn-off the Power Supply

Pretty obvious that your table saw is a power tool, and it needs to be unplugged while not in use. Similarly, when you are changing the blades, the most important thing is to disconnect the power in order to deter abrupt shocks or electrocution.

Step 3: Detach the Blade Guard

A blade guard is basically a tool that is incorporated to save your fingers from getting cut.

While this is partially true, the main reason is to prevent the wood from falling on a spinning blade. Irrespective of what type kind of tool you have, your table saw must have a blade guard or throat plate.

And it needs to be removed while changing the blade. Now, it’s confirmed that your table saw has this feature, but surprisingly they aren’t located at the same place. It varies from one model to another.

Ensure the design from your user manual so that you can decipher more precisely as to where the throat plate is placed. After you are done, detach it carefully.

Step 4: Elevate the Blade

In order to get a clear and more evident vision, your blade needs to have some exposure. Thus, you have to raise the blade at its maximum height. Make sure you stay extra careful while you hold it to repel any sort of awaiting injuries.

Step 5: Loosen the Arbor Nut

After you have successfully raised the blade, it’s time to loosen the arbor nut. Now you might not know what an arbor is.

Well, this is basically the shell that holds the blade or shelters the blade in place. And as a matter of fact, you have to loosen the tight grip of the arbor nut to remove the blade.

Here where the wrenches come to play. Grab the wrenches you have in your toolbox or that two specific wrenches which came with your table saw.

Typically, there are two wrenches; one is for keeping the blade immobile, and another is to turn the arbor nut and to pull it out from the clutch. Use them accordingly, and your arbor nut should be in your hand now.

Step 6: remove the nut manually (optional)

This step is optional. If you face any sort of intricacy or problems while removing the nut with your wrench, you can loosen it with the wrench and pull it outside using your fingers gradually.

While doing this method, make sure you perform it consciously as the nut is slippery sometimes, and it might fall into the table saw’s body.

Step 7: Remove the Washer

Once you are done removing the arbor nut, it’s time to remove the washer as well.

Step 8: Remove the Blade and Replace

Finally, you can remove the blade from the arbor and replace it with a new one. Here you have to follow the same method in reverse. Let me explain it in the upcoming segment.

Replacing the Blade with the New One

Your old table saw blade might be in your hand right now. As you have successfully disengaged the blade from your table saw, it’s time to replace it.

  • Change the washer and the arbor nut
  • Use the same wrench to re-tighten the arbor nut at its right place
  • Nudge the arbor nut as tight as possible as it’s supposed to hold the blade in place
  • Replace the blade guard with a new and competent one from a prominent brand or the similar brand you already have but an updated one( If you want better result)
  • Once these are replaced and embedded in their respective places, it’s time to install the new one and get to work!

Few Tips!

Here are a few tips that might help with your concern.

  • Use a conventional wrench if you don’t get any wrench with your table saw
  • A block of wood can do the work quite similarly to keep the blade immobile as the other wrench does. Just section the wood chunk into the teeth to suppress the blade movement. Luckily it stays stable the entire time.
  • Consider adding an arbor lock; some brands offer arbor lock function, some don’t. If you don’t already have one consider adding one to prevent the blade from spinning while loosening the nut.
  • Re-sharpen the blades if you don’t have the budget to get a new one. You are always open to using lubricants and other effective maintenance methods in order to regain sharpness. Instead of replacing the blades with a new one, you can re-sharpen it after removing the blade and place it back once you are done.
  • Purchase a blade lock for utmost rigidity. It allows the blade extreme stability and holds it in the right place, and prevent sudden gliding or falling.

End Quote

Learning anything is a slow process, especially when it comes to power tools. Hence if you are unsuccessful at the first attempt, don’t be frustrated; instead, be more careful and patient.

Make sure you read the manual thoroughly. Once you have successfully removed the blade following this method, you won’t need much time and pre-planning.

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