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What to do when the overload trips on your Delta 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.

Fixing your Delta table saw when it won't start

A failed power supply, broken on/off switch, bad motor overload, broken power cord or failed drive motor can prevent the table saw motor from starting.

First, try resetting the overload. If the table saw motor won't start after resetting the overload, then the saw may not be getting power from the electrical outlet. Check to see if the electrical outlet works by plugging another electric tool or appliance into the outlet. Reset the house circuit breaker for the electrical outlet if the outlet is dead. Plug the table saw power cord into a different outlet if resetting the house circuit breaker doesn't restore power to the electrical outlet.

If the outlet works, check the power cord for damage or disconnected wires. Reconnect any loose power cord wires. Replace the power cord if it's damaged.

A bad overload can prevent the motor from starting. Unplug the table saw and check for continuity through the overload using a multimeter. Replace the overload if the meter doesn't measure continuity through the overload.

A failed on/off switch can also prevent the motor from starting. With the table saw unplugged, check for continuity through the on/off switch with the switch turned on. Replace the on/off switch if the meter doesn't measure continuity.