Restoring a table saw involves cleaning, aligning, and adjusting various components to bring the tool back to optimal performance. This process includes cleaning the table surface, aligning the blade, adjusting the fence, and potentially rewiring or replacing the motor. Proper restoration can significantly improve the saw’s accuracy, safety, and longevity. This guide provides detailed steps, tools required, and maintenance tips for a successful table saw restoration.
What Are the Initial Steps to Restore a Table Saw?
The first steps in restoring a table saw involve thorough cleaning and preparation:
- Remove all debris, sawdust, and grime from the table surface and mechanisms.
- Use a toothbrush, brake cleaner, and cloth to clean gears and hard-to-reach areas.
- Inspect the table for rust and remove it using appropriate rust removal products.
- Ensure all moving parts are free from obstruction and move smoothly.
How to Align the Blade Properly?
Proper blade alignment is crucial for accurate cuts and safe operation:
- Use a 2×4 and a drywall screw to align the blade with the table.
- Mark a tooth on the blade and adjust the board with the screw until it just grazes the marked tooth.
- Repeat this process for both the front and back sides of the blade.
- Check for blade wobble and ensure it spins freely.
- Adjust lead-screws for smooth operation if necessary.
What Are the Steps to Restore and Align the Fence?
A properly aligned fence is essential for precise cuts:
- Ensure the fence is square to the table surface.
- Use a miter gauge and mark a piece of 2×4 with letters A and B on either side of a crosscut.
- Check for gaps between the cut pieces to adjust the miter gauge if necessary.
- Use a steel rule to measure the distance from the blade to the fence for precise alignment.
- Double-check measurements to ensure accuracy within 0.001 inches.
How to Restore the Table Saw Motor?
Motor restoration may involve rewiring or replacement:
- Consider rewiring for a higher voltage (e.g., 240 volts) for more power.
- Ensure the motor is securely mounted.
- Check and align the pulley system properly.
- Replace the motor switch if inadequate (e.g., replace a toggle switch with a 20 amp, two-pole switch).
- Use 12 gauge wire for the power cord when rewiring.
What Are the Steps to Restore the Table Surface?
A flat, rust-free table surface is crucial for accurate cuts:
- Check the table surface for flatness using a straight edge and calipers.
- Remove rust using appropriate products like EvapoRust.
- Consider using a plywood insert plate if necessary, cut to the width of the table opening.
- Sand the plate to size and secure it with screws.
- Add a finger hole to the insert plate for easy removal.
What Are Common Challenges in Table Saw Restoration?
| Challenge | Description | Solution |
|---|---|---|
| Blade Alignment | Achieving perfect alignment with table and miter slots | Add shim washers to trunnions if necessary |
| Fence Adjustment | Getting the fence perfectly square to the table | Multiple adjustments and checks using precision tools |
| Motor Issues | Complexity in rewiring or replacing the motor | Consult manufacturer documentation or a professional |
| Table Surface | Restoring flatness and cleanliness | Time-consuming process of cleaning, rust removal, and potentially resurfacing |
What Are the Estimated Costs and Time for Restoration?
- Blade Replacement: $50-$200 for a new arbor and blade
- Motor Rewiring: $20-$50 for materials
- Table Surface: $20-$50 for cleaning materials and insert plate
- Time Estimates:
- Blade Alignment: 1-2 hours
- Fence Adjustment: 1-2 hours
- Motor Restoration: 2-4 hours
- Table Surface: 2-4 hours
What Are the Recommended Maintenance Schedules?
- Blades: Sharpen every 50-100 hours of use
- Fence: Check alignment every 20-50 hours of use
- Motor: Lubricate every 100-200 hours of use
- Table Surface: Clean after each use, apply rust inhibitor as needed
How Can I Improve the Longevity of My Restored Table Saw?
- Regular cleaning and maintenance of all components
- Proper storage in a dry environment
- Immediate addressing of any issues or misalignments
- Use of high-quality blades and regular sharpening
- Periodic checks of all electrical components and connections
By following these restoration and maintenance procedures, you can significantly extend the life of your table saw and ensure it continues to perform at its best for years to come.
References:
1. Instructables: Tune Up Your Table Saw With a 2×4
2. IBUILDIT.CA: How To Rebuild a Table Saw
3. Shopsmith Forum: Newbie with used 510: how to measure cut on table saw