How To Replace Table Saw Blades
Watch this video to learn how to safely remove and replace your table saw blade without damaging the saw or your fingers! Learn to select a new blade to buy.
How to remove and replace your blades in your table saw. First thing is health and safety is very important. Make sure the machine is turned off at the mains, and make sure it doesn't work.
Push the on/off trigger. That's completely cut off, I'm happy with that. Most table saws have a plate in the centre.
Sometimes, these are timber. We have these in the shop, but we remove them when we're not using them and put the plate back that came with the machine. Very simply, all you do is you remove the two adjusting screws, that hold the plate in the machine.
Sometimes, these are positioned in different areas, but it's normally two. That removes the plate. I'm then going to wind the blade right up to enable me to get the spanners in.
So you go to the back of the machine and wind the blade up. You want to bring this up to its full tilt. That's great.
A little tip before we remove the blade, always use the spanners that come with the machine. Do not use any other spanner. These are specifically designed so they don't over-tighten the nut and break the ferrule.
So don't use any other spanner bar the ones that come with the machine. If you've misused these or mislaid them, get hold of the manufacturers and they'll more than willingly send you two more out. Most of them have two.
As you can see here, it's not the normal standard spanner. That goes over the ferrule, simply like that. That will lock it in place.
Then I retrieve the other spanner. As you can see it's a bit stubborn, and pulling it towards you, this will undo the blade. Pull the spanner always towards you and this will undo it, not away from you.
I simply then by thumb, remove the nut, and remove the locking arbor. This removes the blade. To put the new blade in, I simply turn the blade with the teeth pointing towards me.
Obviously, this is the way the machine is cutting, not the other way. I simply put the blade back in. A little bit tricky, but take your time.
I thumb the nut on, until it's roughly tight, get the spanners again, and go the opposite way. So I tighten by pushing away from me. I hold my left hand stable and push away.
This now, has locked the blade in position. I then put my plate back in which we'd removed. Put my two screws back in.
Don't over-tighten these because you'll shear them off. Also, as you can see here, I've two holes here and two holes here. These basically set the plate within the machine.
This is pretty good and I don't need to set these, but sometimes you do need to do that. I then will wind the blade down. Remove the spanners and the old blade from the table.
Plug the machine back in. Start the machine. That's fine and ready for use.
Just a small tip, there's a lot of confusion on which blades you buy for the machine. All you simply do is when you're buying a blade, remove the old one, and measure this diameter in here. They're all different.
In this particular case, that's called a 30 mm bore. Some of these have the holes either side, and that's for the locking plate within the machine. Simply measure this hole here and that will give you the size bore.
So when you go to your manufacturers, they will ask what size blade you want, how many teeth you want for the blade, and what size bore. The teeth on the blade dictate the cut, the lesser the teeth, the rougher the cut; the more the teeth, the better the cut. So that's how you remove and replace your table saw blade. .