DeWalt DWS779 Blade Replacement: Step-by-Step Guide

Replacing a saw blade may seem intimidating, but it doesn’t have to be. The DeWalt DWS779 is one of the most popular saws on the market, and replacing its blades can be done quickly and easily with the right tools and techniques. In this article, we’ll walk you through how to replace your DeWalt DWS779 blade so that you can get back to cutting wood in no time.

Whether you’re an experienced DIYer or just getting started working with power tools, proper maintenance of your equipment is key for safety and efficiency. A dull or damaged saw blade will make every cut more difficult, and can even result in injury if used incorrectly or without caution. Replacing a worn-out blade for the DeWalt DWS779 is simple when you know what steps to take.

By following our instructions below, you can have your new blade installed fast and safely – leaving plenty of time for those necessary home improvement projects! Keep reading to find out how easy it is to swap out a DeWalt DWS779 Blade Replacement.

Overview Of Dewalt Dws779

The DeWalt DWS779 is a powerful miter saw that features a 15-amp, 3,800 RPM motor. It also has an adjustable stainless steel miter detent plate with 11 positive stops and a cam lock miter handle with up to a 60-degree angle range. The saw accepts blades between 8″ and 12″ in diameter and comes with a blade wrench for easy installation and removal of the blade. It also includes a dust bag to help keep your work area clean while working.

Additionally, it has an integrated XPS crosscut positioning system which casts a bright shadow on the material being cut so you can easily line up cuts without having to measure or mark each one. With 24 tooth carbide-tipped blade teeth, this saw delivers smooth cutting action and great results every time.

All these features make the DeWalt DWS779 ideal for making precise straight and miter cuts in wood, metal, plastic, aluminum siding, trim boards, crown moldings, baseboards, and more. Its compact size makes it perfect for use in tight spaces where larger machines would struggle to fit. Transitioning into the next section about reasons for replacing the blade on the DeWalt DWS779: Knowing when it’s time to replace the blade will ensure the accurate and safe operation of your machine.

Reasons For Blade Replacement

It’s estimated that up to 95% of saw blades used in a miter saw need replacing within 5 years. There are many reasons why it might be time to replace the blade on your Dewalt DWS779 miter saw. The base, miter arm, and blade adapter ring can become worn or damaged over time. Also, the blade screw may loosen due to vibrations from cutting which will affect its accuracy and performance.

Furthermore, if you notice chips along the edge of the kerf, then this is an indication that the teeth on the old blade have been dulled from excessive use and should be replaced with a new one. Additionally, if you find that the laser guide isn’t providing enough precision for tight cuts anymore, or the steel miter detent plate has lost some of its spring tension – these are also signs that it’s time for a new blade.

Replacing your saw blade regularly ensures optimal performance when making precise cuts like those required for framing projects or crown molding installation. It also keeps you safe as using a dull blade increases the risk of kickback while operating the machine.

So don’t wait until something goes wrong – check your saw every now and then to make sure all components are working properly! From here we move on to what tools and materials are needed in order to swap out an old blade with a fresh one.

Tools And Materials Needed

In order to replace the blade on a DeWalt DWS779 miter saw, there are certain tools and materials needed. To ensure proper installation of the new blade, it is important to have all necessary items before beginning the replacement process. Below is a list of required components:

Miter Saw – This type of saw comes with its own motor assembly and plastic blade guard that covers the spinning saw blade.

Miter Capacity – Choose a model with an increased cutting capacity for longer or larger pieces of wood.

Blade Diameter – The diameter should match your current blade exactly. You can look at both blades side by side to make sure you get one with the same size hole in the center as well as teeth count if applicable.

Diameter Blade Hole– Match this number to your existing blade’s measurements so that it fits securely within your miter saw’s housing without any play when tightened down during installation.

With these components in hand, you will be ready to begin replacing your old worn-out Dewalt dws779 miter saw blade with a fresh new one! Before getting started, however, it is important to understand the safety precautions associated with power tool use and changing out blades.

Safety Precautions

Replacing the blade on a DeWalt DWS779 can be dangerous and should not be taken lightly. It is important to take all necessary safety precautions when replacing the blade in order to avoid laceration hazards. First, make sure that the power source has been disconnected before attempting any repairs or replacements. Next, ensure that the miter latch button has been released so that you can safely remove the rear guard without risking injury.

Additionally, it’s essential to pay attention to your product weight as this may affect how you replace the blade. Furthermore, if there was an issue reported with your saw model, such as a voluntary recall by DEWALT then contact a media specialist for more information.

To keep safe while replacing your blade be aware of each step involved and how they interact with other components of your system. Taking these precautionary measures will go far in ensuring a successful replacement process.

Steps To Replace The Blade

Now that the safety precautions have been discussed it is time to move on to replacing the blade. According to reports of laceration injuries, taking proper care when changing blades can help prevent personal injury. If you are unsure about how to replace the blade in your Dewalt DWS779, take it to a service center for assistance.

To begin this process, start by loosening the miter pointer and the two miter scale screws on the back of the saw using an appropriate wrench or screwdriver. Lift off the old blade with caution as there may be debris from previous cuts still attached to its surface. Insert the new blade into place and align it with precision using a miter gauge if needed.

Finally, secure it firmly in place by tightening all three screws previously mentioned with even pressure until they cannot be tightened further without the risk of over-tightening them.

Aligning And Securing The New Blade

“Measure twice, cut once.” This adage is especially true when it comes to replacing the blade in your DeWalt DWS779. The keyed blade change system makes for a simpler and safer replacement process. To begin, make sure you have unplugged your saw before proceeding with the blade replacement.

Next, remove the motor mounting plate bolts from the bottom of the saw base. Then loosen the fence support cam on both sides to lower product height while loosening the outer blade clamp screw at the same time. Afterward, slide out your old blade and insert your new one through the stainless steel miter detent plate located next to the teeth of the saw blade.

Finally, adjust tension knobs as needed until tight enough so that there’s no play between them and secure all components back into place. With careful alignment and proper tightening of all parts involved, you will be ready to get cutting again!

Troubleshooting Issues

Replacing the blade for a dual bevel sliding compound miter saw, such as the Dewalt DWS779, is not an easy task and should only be done by a qualified technician. If you are having trouble getting your miter position right or if your spinning blade has become lose it might be indicative of a dangerous product.

A defective product can pose serious injury hazards to consumers, so it’s important that proper safety precautions are taken when troubleshooting any potential problems with your saw. Before attempting to replace the blade yourself, make sure you understand all risks associated with doing so in order to prevent any risk of injury.

When dealing with issues concerning blades on a miter saw, it’s best to consult expert advice before taking action. Seeking out professional help from knowledgeable technicians may save you both time and money in the long run since they will have experience working with this type of equipment.

Additionally, these professionals can advise about any cleaning and maintenance tips that need attention in order for your equipment to stay running properly over time.

Cleaning And Maintenance Tips

Cleaning and maintaining a Dewalt DWS779 miter saw is essential to ensure its longevity. To make sure it stays in top condition, regularly inspect the black plastic motor end cover for any signs of damage or wear and tear. This will help maintain accurate miter angles when cutting wood or other materials.

Additionally, take care, not to overload lesser miter saws with heavy-duty products as this can cause malfunctioning of components like the Dewalt power supply or base fence.

It’s also crucial to use only safe cleaning supplies that are specifically designed for use on power tools. Doing so helps keep dust particles from entering into the internal workings while protecting against rust and corrosion caused by moisture build-up inside the machine. Plus, regular servicing extends the life of your miter saw as well as increases its efficiency and performance over time.

When using your Dewalt DWS779 miter saw, always make sure you have an extended power cord connected to reduce voltage drops which can be dangerous if left unchecked. Inspect all knobs, screws, and bolts before each use for tightness and proper alignment too. Taking these simple steps will keep your tool running smoothly without having unexpected stoppages mid-project.

These preventive measures allow users to enjoy their work with peace of mind knowing they’re getting maximum performance out of their equipment every time they switch it on – making a smooth transition into discussing different types of blades available next even easier!

Different Types Of Blades Available

When it comes to replacement blades for the Dewalt DWS779, there are several options available. Depending on when and where your saw was manufactured, certain types of blades may be more suitable than others. Generally speaking, Eastern time manufacturers tend to use a different type of blade than those made in other parts of the world.

To ensure that you have chosen the safest option for your saw, consult with both the product view product page as well as the Consumer Product Safety Commission post-complete recall notice before making a purchase. This information can help guide you toward selecting the best possible solution for your needs. Additionally, it is important to note if you require any additional direct contact with the manufacturer before making a decision about which type of blade to buy.

It is also essential that consumers take into account the age and date of manufacture when choosing their replacement blade. Blades produced after 2015 will typically include safety features not found in previous models so they should be taken into consideration prior to purchasing new blades.

Furthermore, some older models may no longer be recommended due to potential risks associated with them at this point in time. Taking all these factors into account will help ensure that you select a safe and compatible replacement blade for your Dewalt DWS779 saw.

Best Practices For Choosing A Replacement Blade

Choosing the right replacement blade for a Dewalt DWS779 can be an overwhelming task! With so many options available on the market, it’s important to do your research and take into account factors such as exposed blades, damage from consumer products, friendly service, and more. To help make this daunting decision easier, let’s look at some of the best practices when choosing a replacement blade:

FactorBest Practice
Exposed BladeBe sure to choose a blade that is fully enclosed in its casing for maximum safety.
Damage From Consumer ProductsAvoid purchasing blades with any signs of wear or tear from prior use. These could potentially cause further damage down the line.
Friendly ServiceSelect a reputable retailer offering friendly customer service and support should you have any questions or concerns after purchase.
Replacement Blade QualityMake sure to buy high-quality replacements that are compatible with your specific model of saw. This will ensure you get optimal performance out of your product.

By following these best practices, consumers can rest assured knowing they made the right choice when selecting their new replacement blade for their Dewalt DWS779. Taking all these factors into consideration will not only save time but also money and potential frustration due to incompatible products or poor-quality materials used in construction. Now let’s move on to learn about incompatible blades and adapters…

Incompatible Blades And Adapters

Now that we’ve discussed the best practices for choosing a replacement blade, let’s take a look at incompatible blades and adapters. When replacing your sawblade, it is important to make sure that you are using one compatible with your saw model. Using an incompatible adapter or blade could lead to serious damage to both the tool itself and its user.

Here are some common reasons why certain blades might not be compatible:

  • Physical size differences between models
  • Different diameters of arbor hole sizes
  • Height variances in the teeth of the blade
  • Functional factors
  • The number of teeth on the blade may be too few or too many depending on what purpose it will serve
  • The kerf (width) of the cut varies from blade to blade, which can affect performance when cutting different materials m f

It’s always important to double-check compatibility before making a purchase – especially if buying online – as well as doing research into other users’ experiences with similar products. This way, you’ll have peace of mind knowing that your new sawblade is up-to-standard so you can get back to working safely and quickly! Taking these steps allows you to confidently decide whether DIY maintenance is right for you, or if professional assistance should be considered instead.

Diy Vs Professional Assistance

Replacing a blade on the Dewalt DWS779 saw can be done by either a do-it-yourselfer or a professional. While replacing blades yourself is possible, it’s important to understand that there are risks associated with doing so. If you don’t have experience working with power tools, the potential for injury may be too great and you should consider calling in a professional.

A pro will know how to properly disassemble your tool and replace the blade correctly. They’ll also have access to replacement parts specific to your model of saw if they’re needed. Working with a professional ensures you get the job done right without risking any injuries due to inexperience or improper assembly techniques.

Plus, having someone else replace the blade could save time since they won’t need to troubleshoot issues along the way like an inexperienced user might if they try to tackle this project themselves.

In short, while replacing a blade on your own is certainly possible, it pays off in terms of safety and peace of mind when seeking help from an experienced professional who knows what they’re doing and has access to all necessary tools and supplies for such repairs.


In conclusion, replacing the blade on a DeWalt DWS779 is an important part of keeping your saw in working order and getting the most out of it. With knowledge of the right tools and safety precautions, anyone can replace their own blades with relative ease. But with so many different types and sizes of blades available, it’s important to find one that fits your needs perfectly. How do you know which blade will work best for your project?

Doing research into the various blade options is key to making sure you get exactly what you need. Additionally, ensuring any adapters or other pieces are compatible with both the saw itself and the new blade is essential before committing to purchase. If all else fails, seeking professional help from someone who specializes in power tool repair may be worth considering.

No matter how you go about replacing the blade on your DeWalt DWS779, taking proper care when doing so is extremely important for avoiding injury or damaging property. It’s always better to take more time and double-check everything than rush through a job that could have serious consequences if done improperly.

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Hi there, technology lovers and DIY enthusiasts! My name is Alvin, and I am an admin for this blog. I am a techno-geek and a DIY enthusiast, making this blog the right place to share all my knowledge with you to make your life easier in terms of technology.

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