Sawcut machine for sidewalks

A machine for forming saw cuts into concrete slabs of a sidewalk, the machine comprising:

• a frame;
• rubber tracks attached to the underside of the frame, the rubber tracks configured to travel over the sidewalk;
• a track drive motor configured to drive the rubber tracks to propel the machine in a travel direction along the sidewalk during use;
• a cutting assembly mounted to the frame, the cutting assembly comprising:
• a saw for forming saw cuts;
• a linear actuator for moving the saw at a depth into the sidewalk;
• and
• a saw drive motor to move the saw to form the saw cut in a direction perpendicular to the travel direction;
• a travel control assembly for controlling the travel of the saw while the saw is forming the saw cut, wherein the travel control assembly comprises a limit switch configured to signal the saw to stop forming the saw cut, and wherein the limit switch includes a switch wheel and the limit switch signals the saw to stop forming the cut when the switch wheel drops off the edge of the sidewalk;
• and
• a gas generator coupled to the frame, the gas generator configured to provide electric power to at least one of the track drive motor and the saw drive motor, and the cutting assembly.