A Dewalt DW705 compound miter saw is a reliable tool that many craftsmen trust for its precision and efficiency. However, like any mechanical device, it may encounter issues over time. One common problem users face is the brake not working as expected.
If you find yourself in this situation, don’t worry - there are several potential solutions that can get your saw back to optimal performance. In this comprehensive guide, we’ll explore different troubleshooting steps for dewalt dw705 brake not working
Dewalt DW705 Brake Not Working (SOLVED)
Clean the Commutator and Brushes
One user shared their experience, reporting that cleaning the commutator and brushes resolved the brake issue on their Dewalt DW705.
The commutator and brushes play a crucial role in the motor’s function, and over time, they can accumulate dust and debris, hindering their performance. To address this, follow these steps:
- Disconnect the saw: Before starting any maintenance, ensure the saw is unplugged to prevent accidents.
- Access the brushes: Remove the motor housing to access the brushes and the commutator.
- Clean the commutator: Gently clean the commutator with a soft brush or compressed air to remove any built-up debris.
- Inspect the brushes: Check the brushes for wear or damage. If they are short or excessively worn, it’s recommended to replace them.
After performing these steps, users have reported a significant improvement in brake functionality, with their saws operating like new.
Check the Brushes
The brushes in your miter saw’s motor are critical components for proper functioning.
If they are worn or damaged, they can affect the brake’s performance. Here’s a step-by-step guide to checking and replacing the brushes:
- Inspect the brushes: Ensure the brushes are in good condition. Look for signs of excessive wear or damage.
- Check contact areas: Verify that the commutator contact areas of the brushes have full contact with no burned or partially worn areas.
- Replace if necessary: If the brushes are short or show significant wear, it’s advisable to replace them with compatible replacements.
Regularly checking and maintaining the brushes can contribute to the overall longevity and performance of your miter saw.
Inspect the Armature
If cleaning the commutator and replacing the brushes do not resolve the brake issue, the next component to inspect is the armature.
The armature is a critical part of the motor, and any hot or chafed wire areas can lead to performance issues. Follow these steps for a thorough inspection:
- Disconnect the saw: Unplug the saw to ensure safety during inspection.
- Access the armature: Remove the motor housing to access the armature.
- Check for damage: Inspect the armature for any hot or chafed wire areas. If identified, it’s crucial to address the issue promptly.
- Consider replacement: If you’ve already replaced the switch and brushes and the brake issue persists, the armature may be the culprit.
Regular inspection of the armature can prevent potential issues and ensure the smooth operation of your miter saw.
Blade Installation
Surprisingly, a loose blade can contribute to brake issues on the Dewalt DW705 compound miter saw.
One user on Reddit shared their experience, mentioning that tightening the blade resolved the problem. Follow these steps to ensure correct blade installation:
- Securely install the blade: Make sure the blade is correctly installed and tightened according to the manufacturer’s guidelines.
- Check for play: Ensure there is no play or wobbling in the blade.
A loose blade can cause instability, affecting the brake mechanism. By tightening the blade, you may find a simple solution to the brake issue.
Professional Repair
If you’re uncomfortable performing these repairs yourself or if the issue persists after attempting the above solutions, it’s advisable to seek professional assistance.
Taking your Dewalt DW705 compound miter saw to a reputable repair shop ensures that trained technicians can diagnose and address the problem effectively.
Professional repair shops have the expertise and tools necessary to tackle complex issues, providing you with peace of mind regarding the functionality and safety of your saw.
Failing Blade Brake and Motor Brushes
It’s important to note that a failing blade brake on a miter saw can be an indicator of worn-out motor brushes.
The brushes play a crucial role in conducting electrical current to the motor, and if they are worn, the brake may not function correctly.
Regularly inspecting and replacing motor brushes when necessary can prevent brake issues and ensure the saw’s overall performance.
Additionally, intermittent brake operation can be a sign of poor commutation or a failing switch. If you’ve addressed the brushes and blade installation but still experience intermittent brake operation, consider inspecting the switch and ensuring proper commutation for a comprehensive solution.
Conclusion:
In conclusion, if you find that the brake on your Dewalt DW705 compound miter saw is not working, there are several troubleshooting steps you can take.
From cleaning the commutator and checking the brushes to inspecting the armature and ensuring proper blade installation, these solutions address common issues that users have reported.
It’s essential to approach each step with caution, following safety guidelines and manufacturer recommendations. If you’re unsure or uncomfortable with DIY repairs, seeking professional assistance is a wise decision.
By regularly maintaining and inspecting key components, such as the brushes and armature, you can prolong the life of your Dewalt DW705 compound miter saw and enjoy its reliable performance for years to come.
