Unplug the Hitachi power cord and turn the On/Off switch to the off position.
Take off the panel on the bottom of the table saw adjacent to the motor housing, using a screwdriver. Follow the route of the wires from the motor to the round part below the saw. This round component is the thermo switch.
Loosen the screws on the terminals holding the four wires on the thermo switch. Pull the wires off the screw terminals.
Twist the two black wires together to form a splice. Twist the white wires together in the same manner. The circuit is now set up to bypass the thermo switch and provide continuous power to the motor.
Plug in the power cord for the Hitachi and press the power button to the "On" position.
Start and operate the saw normally. If the motor drives the saw blade though it would not work previously, the thermo switch is defective.