In the world of woodworking and construction, the Dewalt DW 708 miter saw stands out as a go-to tool for precision cutting. However, as with any piece of machinery, wear and tear can cause the bearings to wear out, leading to decreased performance, increased noise, and potential damage to the saw.
This comprehensive guide will walk you through the process of replacing the bearings on your Dewalt DW 708, ensuring you can maintain the tool’s peak performance. With an emphasis on safety and efficiency, let’s dive into the steps necessary to get your saw back to optimal condition!
Understanding the Importance of Bearing Replacement
Before we delve into the intricate details of the replacement process, it’s vital to comprehend the role that bearings play in your miter saw. Bearings are crucial for allowing smooth rotation and movement within the tool. When they degrade, you may encounter issues such as:
- Increased friction: This can lead to overheating and damage.
- Reduced accuracy: A faulty bearing can cause misalignment, affecting your cutting precision.
By maintaining the bearings in your Dewalt DW 708, you not only ensure the reliability and longevity of the tool, but you also enhance your overall woodworking experience.
Gathering Your Tools and Materials
Before embarking on your bearing replacement journey, it’s essential to gather all the necessary tools and materials to make the process as seamless as possible. Here’s what you’ll need:
Essential Tools
- Phillips and Flathead Screwdrivers: For removing screws and covers.
- Socket Set: To remove bolts securing the saw.
- Bearing Puller: A specialized tool designed for pulling bearings from their housings.
- Rubber Mallet: Useful for gently tapping components without damaging them.
- Cleaning Agents: De greasers and cleaning brushes for maintenance of the housing.
- Vise Grips: For a firm hold on smaller components.
Materials Required
- Replacement Bearings: Ensure you purchase high-quality bearings compatible with the DW 708.
- Grease: A good-quality bearing grease will aid in smooth operation.
Step-by-Step Guide to Replacing Bearings on the Dewalt DW 708
Now that you have your tools ready, let’s navigate through the step-by-step process of replacing the bearings on your Dewalt DW 708.
Step 1: Safety First
Before you start any work on your miter saw, always ensure you’re wearing the appropriate safety gear. This includes gloves, safety goggles, and a dust mask. Disconnect your saw from the power source to prevent accidental start-ups.
Step 2: Disassemble the Saw
To gain access to the bearings, you first need to disassemble the saw. Follow these steps:
1. Remove the Blade Guard
Using a screwdriver, detach the blade guard by unscrewing the mounts. This part provides safety during operation, so be gentle during the removal.
2. Take Off the Saw Blade
Loosen the arbor nut using a socket wrench and detach the saw blade carefully. Ensure you set it aside in a safe location.
3. Remove the Motor Housing
The motor housing protects the internal components. Remove the screws securing the housing and carefully lift it off, being cautious of any connecting wires.
Step 3: Inspect the Bearings
Once the motor housing is removed, examine the bearings for any signs of damage or wear. Look for:
- Cracks or pitting on the surface
- Excessive play or movement
If you notice any of these issues, it’s time to replace them.
Step 4: Remove the Old Bearings
To efficiently replace the old bearings, follow these steps:
1. Use a Bearing Puller
Align your bearing puller with the old bearing. Tighten the puller’s screws until the bearing is dislodged from its cavity. This step requires a steady hand and patience, so do not rush.
2. Clean the Area
After removing the old bearings, use a degreaser to clean the bearing housing thoroughly. This step ensures a smoother installation for the new bearings.
Step 5: Install New Bearings
Now that the area is clean, it’s time to install the new bearings.
1. Lubricate the New Bearings
Before installation, apply a thin layer of grease on the new bearings. This lubrication will help in smooth motion and extended life of the bearings.
2. Press in the New Bearings
Carefully align the new bearings with their respective housings. You can use a rubber mallet to gently tap them into place, ensuring they’re seated evenly.
Step 6: Reassemble the Miter Saw
With the new bearings securely in place, reassemble your miter saw step by step in reverse order:
1. Replace the Motor Housing
Align the motor housing and secure it with the screws you removed earlier. Ensure the wires are correctly positioned and not pinched.
2. Reattach the Saw Blade
Reinstall the saw blade and tighten the arbor nut securely.
3. Reattach the Blade Guard
Finally, reattach the blade guard, making sure all screws are properly tightened.
Step 7: Test the Miter Saw
Once reassembled, plug in your Dewalt DW 708 and power it on. Listen carefully for any unusual noises and observe its operation. A well-done bearing replacement should lead to a smooth and quiet performance.
Regular Maintenance Tips for Your Dewalt DW 708
After your successful bearing replacement, it’s essential to keep your miter saw in top shape with routine maintenance. Here are some tips:
1. Keep it Clean
Regularly dust and clean your saw to prevent sawdust buildup around the motor and bearings.
2. Check for Wear and Tear
Periodically inspect your bearings and other components for signs of wear. Catching these issues early can save time and money.
Conclusion
Replacing the bearings in your Dewalt DW 708 can seem like a daunting task, but with the right tools and attention to detail, it is an achievable job. This maintenance not only enhances the performance of your tool but also extends its lifespan, allowing you to focus on what truly matters – creating exceptional woodworking projects.
Whether you are an expert craftsman or just starting in woodworking, taking care of your tools fosters a productive and enjoyable workspace. Follow these steps for bearing replacement and your Dewalt DW 708 will continue to deliver precision cuts for many projects to come!
What are the signs that the bearings need to be replaced on a Dewalt DW 708?
The most common signs that the bearings need to be replaced include excessive vibration and noise during operation. If you notice your saw making unusual sounds, such as grinding or squealing, it’s a clear indication that the bearings may be worn out. Additionally, significant heat generated during operation can also suggest that the bearings are failing and affecting the performance of your tool.
Another indicator is a noticeable decrease in the saw’s cutting efficiency or precision. If you’re experiencing difficulty in making clean cuts or if there’s an increase in blade movement, it’s likely that the bearings are no longer providing the necessary support for the blade. Addressing these issues early can help prevent further damage and prolong the lifespan of your Dewalt DW 708.
How do I know which bearings to buy for my Dewalt DW 708?
When selecting bearings for your Dewalt DW 708, it’s essential to check the specifications in your user manual or search for the model’s parts list online. The manual will typically provide the correct part numbers for replacement bearings, ensuring that you purchase the appropriate size and type for your saw. Alternatively, you can also consult with a Dewalt retailer or authorized service center for assistance.
If you are unable to find the information in your manual, consider reaching out to Dewalt’s customer service. They can guide you in identifying and sourcing the right bearings based on your tools’ model number. Always prioritize genuine parts to ensure compatibility and optimal performance.
What tools do I need to replace the bearings in my Dewalt DW 708?
To replace the bearings on your Dewalt DW 708, you’ll need a few essential tools. First, a set of screwdrivers will be necessary for removing screws and other fasteners. Additionally, a socket wrench set is important for loosening and securing bolts that hold the saw together. A mallet can also be helpful when gently tapping bearing components into place.
Furthermore, you’ll require a bearing puller for removing the old bearings, ensuring that you avoid damage to the saw’s housing. Having a set of pliers and cut-off wheel or hacksaw may also assist with any stubborn components. By preparing these tools beforehand, you’ll create a smooth and efficient repair process.
Is it difficult to replace the bearings myself?
Replacing the bearings on a Dewalt DW 708 can be a challenging task, particularly for those who are not familiar with power tool maintenance or repair. However, with sufficient preparation, the right tools, and a step-by-step guide, it is certainly manageable for someone with basic mechanical skills. Take your time and be patient during the process to ensure that each step is done correctly.
If you’re unsure about your capabilities, you might consider watching tutorial videos or reading additional guides to familiarize yourself with the procedure. Alternatively, enlisting the help of a professional or a knowledgeable friend can help alleviate any concerns. Remember, successful bearing replacement can improve the tool’s performance significantly.
What’s the estimated time required to replace bearings in the DW 708?
The time required to replace the bearings in your Dewalt DW 708 can vary based on your experience level and the availability of tools. Generally, if you are well-prepared, the entire process can take anywhere from one to three hours. This includes the time taken to disassemble the saw, replace the bearings, and reassemble it, along with proper testing afterward.
For those who are new to this type of maintenance, it may take longer due to the learning curve and the need to carefully follow each step. It’s crucial to allow adequate time to avoid rushing through the process, which can lead to mistakes. Preparing all tools and replacement parts in advance can help streamline the process.
What should I do if I encounter problems during the bearing replacement process?
If you encounter problems during the bearing replacement process, the first step is to pause and assess the situation carefully. Avoid forcing parts or applying excessive pressure, as this can cause damage to both the tool and the new components. Revisit the steps in your guide or video to ensure that you didn’t miss any critical instructions. It may also be helpful to consult online forums or communities where experienced users can offer advice.
Should you remain stuck despite your efforts, consider reaching out to a professional repair service. They can provide expert assistance and may quickly resolve the issue, saving you time, frustration, and potential further damage to your saw. Remember, it’s always better to seek help than to risk compromising the tool’s functionality.