How To Change Dewalt Circular Saw Blade: Step-by-Step

Changing a DeWalt circular saw blade is easy. This guide walks you through each step, ensuring safety and efficiency. We cover everything from loosening the old blade to installing the new one.

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Safety First: Preparing for Circular Saw Blade Replacement

Before starting any work on your DeWalt circular saw, safety is paramount. Follow these steps to protect yourself:

• Unplug the Saw: Always disconnect the power cord from the outlet. This prevents accidental starts.
• Wear Safety Glasses: Protect your eyes from flying debris.
• Wear Gloves: Protect your hands from sharp blade edges.
• Secure the Saw: Place the saw on a stable surface. This prevents movement during blade changes.
• Read the Manual: Familiarize yourself with your specific DeWalt model’s instructions.
• Clear the Area: Remove obstructions and ensure good lighting.

Gathering the Right Tools

Having the correct tools makes the process of circular saw blade replacement much easier. Here’s what you’ll need:

• DeWalt Circular Saw Blade Wrench: This wrench is specifically designed for your saw. Check your saw’s manual for the right size.
• New Circular Saw Blade: Choose the correct size and type for your cutting needs.
• Gloves: Protect your hands.
• Safety Glasses: Protect your eyes.
• A Clean Cloth: For wiping down the blade and arbor.
• Optional: A block of wood: This can help stabilize the blade while loosening it.

Removing the Old DeWalt Circular Saw Blade

Carefully removing DeWalt circular saw blade is essential for a smooth transition.

Locating the Arbor Lock

The arbor lock is a button or lever that prevents the blade from turning. It’s usually located near the blade.

1. Unplug the Saw: Ensure the saw is unplugged from the power source.
2. Locate the Arbor Lock: Find the arbor lock button on your saw.
3. Press and Hold: Press and hold the arbor lock. This will stop the blade from spinning.

Loosening the Arbor Nut

Loosening circular saw blade can be tricky, but using the correct technique will help.

1. Engage the Arbor Lock: While holding the arbor lock, use the DeWalt circular saw blade wrench to loosen the arbor nut.
2. Direction Matters: The direction to loosen the nut depends on your saw model. Typically, it’s clockwise, but check your manual. Think of it this way: It’s usually the opposite of what you’d expect.
3. Apply Firm Pressure: Use steady pressure. Avoid jerking motions.
4. Use a Block of Wood (Optional): Place a block of wood against the blade to keep it from rotating if the arbor lock slips.

Completing the Blade Removal

Once the nut is loose, you can remove the old blade.

1. Fully Unscrew the Nut: Continue unscrewing the arbor nut until it’s completely removed. Keep the nut and washer safe.
2. Remove the Outer Flange: Take off the outer flange (the metal disc behind the nut). Note its orientation for reassembly.
3. Carefully Remove the Blade: Gently slide the old blade off the arbor. Be careful of the teeth.

Cleaning the Arbor and Flanges

A clean arbor ensures proper blade seating and reduces vibration.

1. Inspect the Arbor: Check for any debris or buildup.
2. Clean the Arbor: Use a clean cloth to wipe the arbor. Remove any sawdust or grime.
3. Clean the Flanges: Clean both the inner and outer flanges. Ensure they are free of debris.
4. Inspect for Damage: Check the arbor and flanges for any damage. Replace them if necessary.

Installing the New Circular Saw Blade DeWalt

Installing circular saw blade DeWalt correctly is vital for safe and accurate cuts.

Mounting the New Blade

1. Orient the Blade: Ensure the blade is facing the correct direction. The teeth should point towards the direction of the cut (usually downwards at the front of the saw). Check the arrow on the blade.
2. Slide the Blade onto the Arbor: Carefully slide the new blade onto the arbor. Make sure it sits flush against the inner flange.

Reattaching the Flanges and Nut

1. Replace the Outer Flange: Place the outer flange back onto the arbor. Ensure it’s oriented correctly (the same way it was before you removed it).
2. Thread the Arbor Nut: Thread the arbor nut back onto the arbor by hand.
3. Tighten the Nut: While holding the arbor lock, use the DeWalt circular saw blade wrench to tighten the nut securely. Again, the direction to tighten may be the opposite of what you expect. Consult your saw’s manual.

Final Checks

1. Ensure Tightness: Make sure the nut is tight, but avoid over-tightening.
2. Spin the Blade: Manually spin the blade to ensure it rotates freely and doesn’t wobble.
3. Check Blade Alignment: Visually inspect the blade alignment to ensure it’s running true.
4. Release Arbor Lock: Release the arbor lock.

After the DeWalt Saw Blade Change Steps: Testing and Adjustments

After DeWalt saw blade change steps, it’s crucial to test and adjust the saw.

Making Test Cuts

1. Plug in the Saw: Plug the saw back into the power outlet.
2. Prepare Scrap Wood: Use a piece of scrap wood for testing.
3. Make a Few Cuts: Make a few test cuts to ensure the blade cuts smoothly and accurately.
4. Listen for Unusual Noises: Pay attention to any unusual noises or vibrations.
5. Check for Blade Wobble: Watch for any blade wobble during the cut.

Adjusting the Saw (If Necessary)

1. Adjust the Bevel Angle: If your cuts are not square, adjust the bevel angle.
2. Adjust the Cutting Depth: Adjust the cutting depth according to the thickness of the material you are cutting.
3. Consult the Manual: Refer to your saw’s manual for specific adjustment instructions.

Choosing the Right Circular Saw Blade

Selecting the correct blade is vital for achieving the best results and ensuring safety.

Blade Material

• High-Speed Steel (HSS): Suitable for softer materials like wood and plastic.
• Carbide-Tipped: Best for harder materials like hardwoods, plywood, and laminates. They stay sharper longer.
• Diamond-Tipped: Ideal for cutting abrasive materials like tile, concrete, and masonry.

Blade Tooth Count

• Fewer Teeth (24-40): Faster cuts, but rougher finish. Ideal for framing and ripping lumber.
• More Teeth (60-80): Slower cuts, but smoother finish. Ideal for plywood, hardwoods, and fine woodworking.

Blade Size

Ensure the blade size matches your saw’s specifications. Using the wrong size can be dangerous. Check your saw’s manual for the correct blade diameter and arbor size.

Blade Type

• General Purpose: Suitable for a variety of cutting tasks.
• Ripping: Designed for cutting wood along the grain.
• Crosscutting: Designed for cutting wood across the grain.
• Plywood: Designed to minimize splintering when cutting plywood.
• Metal Cutting: Specifically designed for cutting metal.

Blade Kerf

The kerf is the width of the cut the blade makes.

• Full Kerf: More stable, but requires more power.
• Thin Kerf: Requires less power, but may be more prone to bending.

Here’s a table summarizing blade selection:

Material	Blade Material	Tooth Count	Blade Type	Kerf
Soft Wood	HSS	24-40	Ripping	Full/Thin
Hard Wood	Carbide-Tipped	60-80	Crosscutting	Full/Thin
Plywood	Carbide-Tipped	60-80	Plywood	Thin
Metal	Special Metal	High	Metal Cutting	Thin
Concrete/Tile	Diamond	N/A	Masonry	N/A

Troubleshooting Common Issues

Even with careful preparation, you might encounter problems during the blade change.

Nut Won’t Loosen

• Check the Direction: Ensure you are turning the nut in the correct direction. Remember, it might be reverse-threaded.
• Apply More Pressure: Use a longer wrench or a cheater bar for more leverage.
• Penetrating Oil: Apply penetrating oil to the threads and let it sit for a few minutes.
• Tap with a Hammer: Gently tap the wrench with a hammer to help loosen the nut.

Arbor Lock Slipping

• Apply Constant Pressure: Ensure you are applying constant and firm pressure to the arbor lock.
• Check the Lock Mechanism: Inspect the arbor lock mechanism for any damage or wear.
• Use a Block of Wood: Use a block of wood to prevent the blade from rotating.

Blade Wobbles After Installation

• Check the Flanges: Ensure the flanges are clean and properly seated.
• Tighten the Nut: Make sure the nut is tightened securely.
• Inspect the Blade: Check the blade for any damage or warping.
• Check the Arbor: Inspect the arbor for any damage or bending.

Blade Binding During Cutting

• Ensure Correct Blade: Make sure you are using the correct blade for the material you are cutting.
• Check Blade Alignment: Verify the blade is properly aligned with the fence or guide.
• Adjust Cutting Speed: Reduce the cutting speed if the blade is binding.
• Use a Riving Knife: Ensure the riving knife is properly adjusted to prevent kickback and binding.

Maintaining Your Circular Saw

Regular maintenance extends the life of your DeWalt circular saw.

• Clean Regularly: Remove sawdust and debris after each use.
• Lubricate Moving Parts: Lubricate the blade guard and other moving parts periodically.
• Inspect the Power Cord: Check the power cord for any damage.
• Sharpen or Replace Blades: Sharpen or replace blades when they become dull.
• Store Properly: Store the saw in a dry and safe place.
• Check Brushes: Check the motor brushes periodically and replace them when worn.
• Calibrate the Saw: Occasionally calibrate the saw to ensure accurate cuts.

DeWalt Circular Saw Blade Removal Tool: Is It Necessary?

A dedicated DeWalt circular saw blade removal tool is generally not necessary for most DeWalt circular saws. The included wrench is usually sufficient. However, some users find these tools helpful for added leverage or convenience. These tools often feature a longer handle or a more ergonomic grip. If you frequently change blades, a specialized tool might be a worthwhile investment.

DeWalt Blade Change Instructions: Following the Manual

Always refer to your specific DeWalt blade change instructions in the owner’s manual. While this guide provides general steps, your model may have unique features or requirements. The manual will provide detailed diagrams and specific torque specifications for tightening the arbor nut. Ignoring the manual can lead to improper installation and potential safety hazards.

FAQ: Frequently Asked Questions

• What direction do I turn the nut to loosen the blade? Typically, you turn it clockwise (opposite of what you might expect). Always confirm in your DeWalt saw’s manual.

• Can I use any circular saw blade on my DeWalt saw? No. You must use a blade with the correct diameter and arbor size specified in your saw’s manual.

• How often should I change my circular saw blade? Change the blade when it becomes dull, damaged, or when you switch to a different type of material.

• What is an arbor lock, and why is it important? The arbor lock is a mechanism that prevents the blade from spinning during blade changes. It’s crucial for safety.

• Do I need to unplug the saw before changing the blade? Yes! This is the most important safety step. Always unplug the saw to prevent accidental starts.

• What if I don’t have the DeWalt circular saw blade wrench? You can purchase a replacement wrench online or at a hardware store. Ensure it’s the correct size for your saw.

• How tight should I tighten the arbor nut? Tighten it securely, but avoid over-tightening. Refer to your saw’s manual for specific torque specifications.

• My blade is stuck. What should I do? Apply penetrating oil to the threads and let it sit for a few minutes. Gently tap the wrench with a hammer. If it still won’t budge, consult a professional.

• What should I do with my old circular saw blade? Dispose of it properly. Wrap it in cardboard or tape to protect yourself and others from the sharp teeth. Some recycling centers accept metal blades.

• Why is my saw vibrating more than usual after changing the blade? This could be due to a loose arbor nut, a damaged blade, or debris on the arbor or flanges. Recheck everything and ensure proper installation.

By following these steps and tips, you can safely and effectively change your DeWalt circular saw blade and keep your saw running smoothly. Always prioritize safety and consult your saw’s manual for specific instructions.