How Do You Change a Circular Saw Blade: A Helpful Guide
Any equipment, whether run by electricity or battery, will eventually wear out and need to be replaced. For circular saws, the part that needs regular replacement is the blade since it does most of the work. However, with dangers of cutting oneself, it is important that you get to answer the question, “How do you change a circular saw blade without compromising safety?”
How Do You Change a Circular Saw Blade: The Step-by-Step Procedure
There are several types of circular saws, but the steps to change a circular saw blade do not vary much for different models. Majority of the time, you will only need to change one or two tools to match what the product requires. Fortunately, some manufacturers include a tool or toolkit in their circular saw packages.
Here is a common method that can help you replace a blade in circular saw safely.
Step One: Preparation
Materials: To start with, make sure you have a hammer, a thin piece of wood, and a standard or a hex wrench along with the circular saw. For some models, the wrench comes with the circular saw. You can find it either attached to the product’s handle or placed somewhere in the saw’s body.
Safety: For corded circular saws, unplug the cord and make sure that the cord will not be causing you trouble by twisting or tying it. On the other hand, if you will be working on a cordless saw, remove the battery and keep it in a safe area.
Placement of the Circular Saw: The circular saw should be stable throughout the process to make sure that you will be safe and the machine will not accidentally fall. You can do this by placing it on top of a flat, sturdy wooden surface or any bench top.
Step Two: Exposure and Removal of the Old Blade
Exposing the blade: In order for you to have access to the saw’s old blade, you must pull the blade guard or slide it up. Such will depend on your saw’s model.
Keeping the Old Blade Stationary: There are some models of circular saws that are equipped with an arbor lock button. You may refer to your user’s manual to ensure that you have found the right button. Once located, press it. If such is not present, look for the holes present in the saw blade and place a thin piece of wood and press on it.
Loosening and Removing the Arbor Nut: Fit the wrench to the arbor nut and start rotating by following the cutting direction of the blade. If you are using a worm-drive circular saw, rotate it in a clockwise direction, but for direct-drive circular saws, use an anti-clockwise direction. While doing this, make sure that you are still pressing the arbor lock button or pressing the wooden material you placed. Once loosened, remove the arbor nut and keep it in sight.
Removing the Old Blade: Simply retract the upper blade guard and pull the old blade out.
Step Three: Placing the New Blade
Remove the new blade from its packaging, making sure not to cut yourself as this is very sharp. Carefully place it over the arbor and make sure the saw teeth are always facing the direction of the rotation. Fortunately, in most modern circular saws, you can find an arrow to help you with the saw teeth placement.
Once such is ensured, you can now tighten the arbor bolt or nut with the help of the wrench. Please note that some circular saws come with a diamond arbor. If you have one of these, you have to knock out the blade insert before installing it. You can do this by putting the blade on the wooden surface and hammering it gently to tap out the insert.
However, make sure that the arbor nut is not tight enough since the normal functioning of the saw kind of tightens the nut on its own. It should also not be too loose to prevent accidental removal of the nut and blade.
Step Four: Trying Out the New Blade
Once the blade is in place and the screw is tight enough, you are ready to give the saw its power supply back. Put the battery back in or plug in the cord to the power socket. Then, try using the circular saw at low speed and power to determine if problems with the blade occur. If none, then your saw is ready.
Using old or worn-out blades is never a good idea because your output will be ugly and you will be doubling your working hours. Although sharpening is another choice, that will still not ensure quality. Hence, better replace it with a new one since these blades are quite affordable. Just make sure to always take precaution while doing it and follow the proper ways on how do you change a circular saw blade.