When it comes to woodworking tools, Dewalt is a name synonymous with quality and reliability. The Dewalt DW708 miter saw, known for its precision and efficiency, is a favorite among professionals and DIY enthusiasts alike. However, even the best tools require maintenance and occasionally, parts must be replaced. One crucial component that may need attention is the armature bearing. In this comprehensive guide, we will clarify the process of pulling apart the Dewalt DW708 armature bearing, providing you with step-by-step instructions, important tips, and everything you need to know to ensure a successful disassembly.
Understanding the Armature Bearing in the Dewalt DW708
Before diving into the details, it’s important to understand what an armature bearing is and its role in the Dewalt DW708.
What is an Armature Bearing?
The armature bearing is a pivotal part of an electric motor that supports the rotor and allows smooth rotation. In the Dewalt DW708, this component enables the motor to operate efficiently, offering precise cuts every time. However, wear and tear can lead to issues, including noise, overheating, and decreased performance, necessitating the need for replacement.
Signs You Need to Replace the Armature Bearing
Recognizing when your armature bearing is failing can save you time and money. Common signs include:
- Loud noise: Any unusual grinding or squeaking sounds can indicate bearing wear.
- Excessive heat: If the tool overheats during operation, the bearings may be the culprit.
Understanding these signs will prepare you to take appropriate action before the situation worsens.
Tools Required for the Task
Before you begin, it helps to gather all the necessary tools to ensure a smooth process. Here’s a list of items you’ll need for pulling apart the armature bearing:
- Socket wrench set
- Replacement bearings
- Flathead screwdriver
- Pry bar (if needed)
- Lubricating oil or grease
- Work gloves
- Safety goggles
Having these tools on hand will make your disassembly process much easier.
Step-by-Step Guide to Pulling Apart the Dewalt DW708 Armature Bearing
Now that you’re equipped with the right tools and knowledge, let’s delve into the step-by-step process of pulling apart the armature bearing of the Dewalt DW708.
Step 1: Safety First
Before starting any maintenance task, it’s crucial to prioritize your safety. Here are essential precautions to take:
- Unplug the Miter Saw: Always ensure that your tool is disconnected from the power source.
- Wear Protective Gear: Use safety goggles and gloves to protect yourself from debris and sharp edges during disassembly.
Step 2: Remove the Blade and Guard
To access the armature bearing, you will first need to remove the blade and the guard.
- Locate the blade release button and press it to release tension on the blade.
- Use a socket wrench to uninstall the bolt securing the blade and remove the blade assembly.
- Carefully take off the guard and set it aside.
Step 3: Disassemble the Housing
With the blade and guard removed, you can proceed to disassemble the housing.
- Unscrew the screws on the motor housing using your socket wrench. Keep these screws safe, as you will need them for reassembly.
- Gently lift the housing, exposing the motor and armature. Be careful to avoid damaging any wiring or components.
Step 4: Accessing the Armature Bearing
Now you can access the armature bearing itself.
- Locate the armature bearing on the rotor. Inspect it for any signs of wear or damage.
- Use a flathead screwdriver to gently pry off the bearing retainer, if applicable. Exercise caution to avoid damaging the bearing itself.
Step 5: Removing the Armature Bearing
To replace the bearing, it needs to be removed from the armature.
- Use your pry bar or flathead screwdriver to gently lift the bearing. Be patient – applying too much force can damage the armature.
- If the bearing is stubborn, you can apply a small amount of lubricating oil to ease the removal process. Let the oil sit for a few moments to penetrate.
Step 6: Clean the Area
After successfully removing the armature bearing, it’s a good idea to clean the area.
- Wipe down the rotor and surrounding components with a clean cloth to remove any dust or debris.
- Ensuring a clean surface is crucial for optimal performance when installing the new bearing.
Step 7: Installing the New Armature Bearing
With the old bearing removed, you can now install the new one.
- Place the new bearing onto the rotor, aligning it with the designated space.
- Gently press down on the bearing using your hands to ensure it fits snugly in place.
- Reattach the bearing retainer if one was present.
Step 8: Reassemble the Motor Housing
Now that the new bearing is in place, it’s time to put everything back together.
- Position the motor housing back over the rotor and ensure all wires are tucked away safely.
- Replace and tighten all screws securely.
- Reattach the guard and blade. Make sure the blade is aligned correctly before securing it with the bolt.
Final Checks and Testing
Once everything is reassembled, it’s essential to perform final checks.
Step 1: Inspect Your Work
Take a few moments to inspect your work for any loose screws or components. Ensure that the blade is aligned properly and that all parts are secure.
Step 2: Test the Miter Saw
Before using your Dewalt DW708 for substantial projects, conduct a test run.
- Plug in the miter saw and turn it on. Listen for any unusual noises.
- Check if the blade operates smoothly without any wobble.
Conclusion
Pulling apart the Dewalt DW708 armature bearing may seem intimidating at first, but with the right tools and knowledge, it’s a task that can be accomplished successfully. Regular maintenance can significantly extend the life of your miter saw, ensuring it continues to perform at its best for years to come. Remember to follow safety protocols throughout the process, take your time, and consult the manufacturer’s manual if needed.
By following this detailed guide, not only will you replace the armature bearing effectively, but you will also enhance your skills in maintaining and servicing your valuable tools. Happy woodworking!
What is the purpose of the Dewalt DW708 armature bearing?
The armature bearing in the Dewalt DW708 serves a crucial role in the tool’s overall functionality. It supports the armature, which is the rotating part of the motor, allowing it to spin smoothly while minimizing friction. This ensures the efficiency of the tool and helps maintain its performance during operation.
Additionally, a well-functioning armature bearing helps to extend the life of the motor by preventing excessive wear on the armature and associated components. If the bearing becomes worn or damaged, it can lead to increased noise, reduced power, and potential motor failure, making proper maintenance essential.
How do I know when the armature bearing needs replacing?
There are several signs that can indicate a worn or failing armature bearing. You may notice unusual noises originating from the tool, such as grinding, rattling, or high-pitched squeals, which can suggest that the bearing is not functioning correctly. Additionally, if the tool starts to vibrate excessively, it could signal that the bearing is misaligned or worn out.
Another indication of bearing issues is a noticeable decrease in the tool’s performance, such as reduced power output or slower blade rotation. If you encounter any of these symptoms, it is advisable to inspect the armature bearing and consider replacement if necessary to restore optimal function and safety.
What tools do I need to pull apart the armature bearing?
To pull apart the Dewalt DW708 armature bearing, you will need a few essential tools. A set of screwdrivers—both Phillips and flathead—will be required to remove screws and covers. Additionally, a bearing puller or a specialized armature puller can effectively detach the bearing from the armature without causing damage.
You may also need a soft mallet to gently tap components into place, as well as some lubricant to ease the removal process. Finally, having a clean workspace with a bench vise can be beneficial for securing the tool and keeping everything organized during disassembly.
What is the procedure for removing the armature bearing?
Removing the armature bearing from the Dewalt DW708 involves several steps to ensure a secure and efficient process. First, start by unplugging the tool and disassembling any outer casing to access the armature. This may include removing screws and detaching any connectors or cords.
Once you have access, use a bearing puller to grip the bearing and gently apply force to separate it from the armature shaft. It’s essential to do this slowly and carefully to avoid damaging the armature or other components. After the bearing is removed, clean the area thoroughly before installing the new bearing to ensure optimal performance.
Can I reuse the old armature bearing after pulling it apart?
In most cases, reusing an old armature bearing is not recommended, especially if it has shown signs of wear or damage. Even if the bearing appears physically intact, internal degradation can lead to premature failure in the future. For optimal performance and longevity, it is best to invest in a new bearing designed for the Dewalt DW708.
Reusing old bearings could lead to decreased efficiency, increased noise, and potentially costly repairs down the line. Therefore, it’s prudent to replace the bearing once it has been removed, ensuring that your tool operates at its best and minimizing the risk of further mechanical issues.
How can I ensure proper installation of the new armature bearing?
Proper installation of the new armature bearing is critical for the functionality of your Dewalt DW708. Begin by thoroughly cleaning the bearing housing to remove any dust, debris, or old lubricant, as this will help the new bearing fit snugly. Check to ensure that the new bearing is the correct size and type as specified for your model.
During installation, carefully slide the new bearing onto the armature shaft, making sure it is aligned correctly. You may want to use a press or a soft mallet to gently seat the bearing into place, ensuring it is level and securely fitted. Once installed, reassemble the tool and test it in a safe environment to confirm that it functions correctly and quietly.
Are there any safety precautions to take when working with the armature bearing?
Absolutely, safety is paramount when working with the armature bearing and any tools. Always start by disconnecting the power source to ensure no accidental starts while you’re working on the tool. Wear appropriate personal protective equipment (PPE), such as safety goggles and gloves, to protect yourself from debris and sharp edges.
Moreover, maintain a clean and organized workspace to minimize the risk of accidents. Use tools designed for the task at hand to prevent injury and avoid using excessive force when removing or installing the bearing, as this could damage the components. Being mindful of these precautions will help you work safely and efficiently with the armature bearing.