What to do when the overload trips on your Jet table saw
Worn motor brushes, a bad drive motor, a faulty motor overload switch, using an improper extension cord and binding up the saw blade can cause the motor overload to trip.
A long or lightweight extension cord can cause a voltage drop that overheats the motor and causes the overload to trip. Use a shorter cord or a heavy-duty extension cord that can handle the current draw of the table saw. For a 120-volt table saw plugged into an outlet protected by a 15-amp circuit breaker, extension cord length typically shouldn't exceed 25 feet.
The motor can overheat if the saw blade binds up when cutting a work piece. Replace a dull or damaged cutting blade so it doesn't bind up when cutting a work piece. Using the wrong type of blade for cutting the work piece can also bind up the blade when cutting. Use the right type of blade for the work piece that you're cutting.
Worn motor brushes or a bad drive motor can cause the overload to trip. Check the condition of the carbon motor brushes. Replace the motor brushes if they're worn. Replace the motor if it overheats or won't spin the blade when cutting light work pieces.
A faulty motor overload switch will trip even when the motor doesn't overheat. Replace the motor overload if it constantly shuts off the motor when the motor isn't overheating.
Troubleshooting your Jet table saw when it makes bad cuts
If you have to push the work piece harder through the table saw blade and you see ragged, torn, splintered or burnt grain along the edges where you just cut, you may need to clean, adjust or replace the blade. You may also need to clean the table and use a guide to achieve clean cuts.
First, check the condition of the saw blade for damage or residue. Clean gum or pitch residue off the blade using turpentine and steel wool. Replace the saw blade if it's worn or damaged.
Check blade alignment because the blade won't make accurate cuts if it's not parallel with the miter gauge groove. If blade alignment is off, use a combination square to accurately adjust the blade so it's parallel with the miter gauge groove.
Use the right type of saw blade to cleanly cut the work piece.
Clean gum or pitch off the table so the work piece feeds smoothly through the cutting blade area when making cuts.
Use the rip fence or miter gauge to guide your work piece through the saw blade for uniform cuts.