How To Change Dewalt Reciprocating Saw Blades: Step-by-Step

Do you need to know how to change a Dewalt reciprocating saw blade? Yes, this article provides step-by-step instructions on Dewalt reciprocating saw blade replacement, covering various models and blade types. We’ll show you how to change sawzall blades quickly and safely.

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Grasping the Dewalt Reciprocating Saw Blade Change Process

Changing blades on a reciprocating saw, often called a Sawzall (a popular brand name), is a simple task. However, knowing the correct procedure ensures your safety and prevents damage to your tool. This guide provides Dewalt blade change instructions for various models, including cordless versions. The method is generally the same, but some models have unique features like the Dewalt quick release blade change system.

Safety First: Prepare for Dewalt Reciprocating Saw Blade Replacement

Before starting any Dewalt reciprocating saw blade replacement, safety is key.

• Disconnect Power: For corded models, unplug the saw. For cordless models, remove the battery. This prevents accidental activation.
• Wear Gloves: Protect your hands from sharp blade edges.
• Eye Protection: Use safety glasses or goggles to shield your eyes from debris.
• Allow to Cool: If you’ve been using the saw, give the blade time to cool down. Reciprocating saw blades can get very hot during operation.

Tools Needed for Changing Sawzall Blades

The tools you need are minimal:

• Work Gloves: As mentioned above, protect your hands.
• Safety Glasses: Essential for eye protection.
• New Reciprocating Saw Blade: Choose the correct blade for the material you’ll be cutting.
• Possibly a Pliers: If the old blade is stuck, pliers can help.

Step-by-Step: Dewalt Sawzall Blade Removal and Installation

Now, let’s get into the specific steps for removing and installing blades on your Dewalt reciprocating saw. While some models may have minor variations, the core process remains consistent.

Step 1: Locating the Blade Change Mechanism

The blade change mechanism is typically located on the front of the saw, near where the blade is attached. Dewalt uses a few different mechanisms, so identify yours.

• Lever-Action: Many Dewalt models use a lever that you need to rotate or lift to release the blade.
• Twist-Lock: Some models have a twist-lock mechanism that requires you to rotate a collar to release the blade.

Step 2: Removing the Old Blade (Sawzall Blade Removal)

The removal process will vary slightly depending on the type of mechanism your saw has.

• Lever-Action:
  1. Locate the lever near the blade holder.
  2. Rotate or lift the lever. This usually unlocks the blade.
  3. If the blade does not eject automatically, gently pull it out. It might be tight if it’s dirty or bent. Using pliers might be helpful.
• Twist-Lock:
  1. Locate the twist-lock collar near the blade holder.
  2. Rotate the collar to the unlocked position (usually indicated by arrows or symbols).
  3. The blade should now be free to remove. Again, you might need pliers if it’s stuck.

Dealing with a Stuck Blade

Sometimes, blades get stuck due to rust, debris, or bending.

• Lubrication: Apply a small amount of penetrating oil (like WD-40) to the blade holder. Let it sit for a few minutes.
• Gentle Rocking: Try gently rocking the blade back and forth to loosen it.
• Pliers: Use pliers to grip the blade firmly and pull it out. Be careful not to damage the blade holder.

Step 3: Inserting the New Blade (Reciprocating Saw Blade Installation)

Now it’s time to install the new blade. The process is generally the reverse of removal.

• Lever-Action:
  1. Ensure the lever is still in the open or unlocked position.
  2. Insert the new blade into the blade holder. Make sure the blade’s teeth are facing in the correct direction (usually downwards for standard cutting).
  3. Push the blade in until it clicks or seats firmly.
  4. Release the lever. It should lock the blade in place.
  5. Gently tug on the blade to ensure it’s securely locked.
• Twist-Lock:
  1. Ensure the twist-lock collar is in the unlocked position.
  2. Insert the new blade into the blade holder, again ensuring the teeth face the right way.
  3. Push the blade in until it seats firmly.
  4. Rotate the twist-lock collar to the locked position.
  5. Check that the blade is securely locked by gently tugging on it.

Step 4: Testing the New Blade

Before using the saw, test the new blade.

• Visual Inspection: Ensure the blade is straight and properly seated in the holder.
• Manual Check: Gently pull on the blade to confirm it’s locked in place.
• Short Test Cut: Make a short test cut on a piece of scrap material to ensure the blade is cutting correctly and there is no excessive vibration.

Dewalt Quick Release Blade Change Systems

Some Dewalt reciprocating saws feature a Dewalt quick release blade change system, making blade changes even faster and easier. These systems often involve a lever or button that allows for tool-free blade changes.

How to Use a Quick Release System

1. Locate the quick release lever or button.
2. Press or activate the lever/button. This should release the old blade.
3. Insert the new blade into the holder.
4. Release the lever/button. The blade should lock automatically.
5. Test the blade to ensure it’s secure.

These systems are designed for convenience and speed, making them ideal for jobs requiring frequent blade changes.

Choosing the Right Reciprocating Saw Blade

The type of blade you use significantly impacts the saw’s performance and the quality of your cuts. Here’s a quick guide:

Blade Type	Material	Characteristics	Best For
Metal Cutting	Steel, Iron, Aluminum	High-speed steel (HSS) or bi-metal, fine teeth per inch (TPI)	Cutting pipes, metal studs, sheet metal
Wood Cutting	Wood, Plywood, Softwoods	Coarse teeth per inch (TPI), often made of carbon steel	Demolition, framing, rough cuts
Bi-Metal	Multiple Materials	Combination of HSS and carbon steel, offering flexibility and durability	General-purpose cutting, especially when encountering nails in wood
Demolition	Mixed Materials	Thick, durable blades with carbide-tipped teeth	Demolition work involving wood, nails, and other materials
Carbide-Tipped	Abrasive Materials	Extremely durable teeth for cutting tough materials like brick, concrete, and tile	Masonry work, cutting abrasive materials
Pruning	Branches, Limbs	Specialized blades with aggressive teeth for fast, clean cuts in green wood	Pruning trees and shrubs

Consider the thickness and density of the material when selecting a blade. Thicker materials generally require blades with fewer teeth per inch (TPI).

Troubleshooting Common Blade Change Problems

Even with careful steps, issues can arise. Here’s how to solve them.

Problem: Blade won’t come out.
* Solution: Apply penetrating oil, gently rock the blade, use pliers for a firm grip, and double-check the release mechanism.

Problem: New blade won’t lock in.
* Solution: Inspect the blade holder for debris, ensure the release lever is fully engaged, and try a different blade to rule out manufacturing defects.

Problem: Excessive vibration after blade change.
* Solution: Check that the blade is securely locked, ensure the correct blade type is used for the material, and inspect the blade for damage.

Problem: Dewalt sawzall blade eject malfunction
* Solution: Clean the blade holder thoroughly, lubricate the ejection mechanism, and if the problem persists, consider professional servicing.

Maintaining Your Dewalt Reciprocating Saw

Proper maintenance extends the life of your saw and ensures smooth blade changes.

• Regular Cleaning: Remove debris and sawdust from the blade holder and surrounding areas.
• Lubrication: Apply a small amount of oil to the blade holder mechanism to keep it moving freely.
• Inspection: Regularly inspect the blade holder for damage or wear.
• Storage: Store the saw in a clean, dry place.

Tips for Efficient Cutting with a Reciprocating Saw

Besides knowing how to install sawzall blade, mastering cutting techniques improves results.

• Use the Right Speed: Match the speed of the saw to the material being cut. Slower speeds are generally better for metal, while faster speeds are suitable for wood.
• Apply Gentle Pressure: Let the saw do the work. Avoid forcing the blade, as this can cause it to bend or break.
• Use a Guide: For straight cuts, use a guide or clamp to keep the saw on track.
• Control Vibration: Grip the saw firmly and use your body weight to help stabilize it.
• Consider Blade Length: When performing plunge cuts use a longer blade so the shoe of the saw has something to rest on.

Cordless Reciprocating Saw Blade Change Considerations

Changing blades on a cordless reciprocating saw is virtually identical to changing them on a corded model. However, the key difference is always to remove the battery before starting the blade change. This prevents accidental starts and injuries. Cordless models often feature tool-less blade change systems for added convenience.

Benefits of Cordless Reciprocating Saws:

• Portability: No cords to restrict movement.
• Convenience: Easy to use in tight spaces or remote locations.
• Power: Modern cordless models offer comparable power to corded saws.

Drawbacks of Cordless Reciprocating Saws:

• Battery Life: Limited runtime.
• Weight: Batteries can add weight to the tool.

Conclusion: Mastering Dewalt Reciprocating Saw Blade Replacement

Dewalt reciprocating saw blade replacement is a simple process when you follow these steps. Whether you are changing sawzall blades on a corded or cordless model, knowing the correct procedure ensures your safety and maximizes the performance of your tool. With proper blade selection, maintenance, and technique, you can tackle a wide range of cutting tasks with confidence. Always remember to prioritize safety and refer to your saw’s user manual for specific instructions.

Frequently Asked Questions (FAQ)

Q: What is the best type of blade for cutting metal with a Dewalt reciprocating saw?
A: High-speed steel (HSS) or bi-metal blades with fine teeth per inch (TPI) are best for cutting metal.

Q: Can I use any brand of blade in my Dewalt reciprocating saw?
A: Yes, as long as the blade has a universal shank that fits into the blade holder. Check the user manual.

Q: How often should I change the blade on my reciprocating saw?
A: Change the blade when it becomes dull, damaged, or when switching to a different material.

Q: What causes a reciprocating saw blade to break?
A: Common causes include using the wrong blade for the material, forcing the blade, excessive heat, and blade fatigue.

Q: Who is responsible if I am injured during a Dewalt sawzall blade eject malfunction?
A: Determining responsibility depends on the specific circumstances, including proper use of the tool, maintenance, and any manufacturing defects. Consult with a legal professional for guidance.

Q: How to install sawzall blade facing direction?
A: The teeth should generally point downwards (away from the saw body) for standard cutting.

Q: What is Dewalt sawzall blade eject?
A: Dewalt sawzall blade eject is a function on some Dewalt reciprocating saws that automatically ejects the blade when the release mechanism is activated, for easy blade removal.

Q: What is a Dewalt quick release blade change?
A: A Dewalt quick release blade change is a tool-free system that allows for fast and easy blade changes without needing any additional tools.